| Carries | Crosses | Location | Design | Status | Year Built | Year Recon. | Span Len. | Total Len. | Condition | Suff. Rating | ID | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NBI report Bridgehunter | O'DONNELL LANE | CALABAZAS CREEK | NEAR ARNOLD DRIVE | Masonry Arch - Deck | NR eligible | -- | -- | 40.0 | 44.0 | Fair | 33.9 | 20C0324 |
| NBI report Bridgehunter | STATE ROUTE 128 | HEADER DRAW | 04-SON-128-5.26 | Concrete Slab (2 spans) | -- | -- | -- | 12.1 | 24.9 | Good | 66.3 | 20 0037 |
| NBI report Bridgehunter | STATE ROUTE 12 | HOOKER CREEK | 04-SON-012-33.31 | Masonry Arch - Deck | -- | 1901 | 1924 | 20.0 | 24.0 | Poor | 26.9 | 20 0030 |
| NBI report | MONTGOMERY DR | SANTA ROSA CREEK | PIERCE ST & SOTOYOME DR | Steel Stringer/Multi-beam or girder (4 spans) | -- | 1906 | 1948 | 59.1 | 150.9 | Fair | 73.1 | 20C0170 |
| NBI report Bridgehunter | 2ND STREET | NATHANSON CREEK | .02 mi so. of E. Napa St | Masonry Arch - Deck | NR listed | 1909 | -- | 21.0 | 27.6 | Fair | 46.4 | 20C0520 |
| NBI report Bridgehunter | GEYSERS RD | BIG SULPHUR CREEK | 18.6 MI N OF SH 128 | Steel Truss - Thru | NR eligible | 1909 | -- | 130.3 | 149.0 | Fair | 50.3 | 20C0005 |
| NBI report Bridgehunter | LAUGHLIN RD | MARK WEST CREEK | 1 MI N OF RIVER RD | Concrete Arch - Deck | -- | 1910 | -- | 87.6 | 90.9 | Fair | 49.1 | 20C0246 |
| NBI report Bridgehunter | CHASE ST | NATHANSON CREEK | 0.1 MI E SR 12 SONOMA | Wood Stringer/Multi-beam or girder | -- | 1910 | 1990 | 21.0 | 24.0 | Fair | 37.3 | 20C0497 |
| NBI report | OLD REDWOOD HWY | PRUITT CREEK | 1.75 MI S PLEASANT RD | Concrete Culvert (2 spans) | -- | 1913 | 1925 | 11.2 | 24.0 | Fair | 81.7 | 20C0084 |
| NBI report | OLD REDWOOD HWY | SOTOYOME CREEK | ON OLD REDWOOD HWY | Concrete Tee beam | -- | 1913 | 1925 | 21.0 | 23.0 | Good | 89.6 | 20C0089 |
| NBI report Bridgehunter | 4TH ST EAST | NATHANSON CREEK | 0.1 MI N OF E NAPA ST SO | Concrete Arch - Deck | -- | 1914 | -- | 29.9 | 35.1 | Poor | 29.7 | 20C0495 |
| NBI report Bridgehunter | RIVER RD | RUSSIAN RIVER | 5.31 MI INTX WITH SR 116 | Steel Truss - Thru | -- | 1914 | 1947 | 200.1 | 530.9 | Poor | 41.1 | 20C0037 |
| NBI report Bridgehunter | CHALK HILL RD | MAACAMA CREEK | 1 MI S OF SR 128 | Concrete Arch - Deck | NR eligible | 1915 | -- | 109.9 | 170.0 | Fair | 51.8 | 20C0242 |
| NBI report Bridgehunter | LAMBERT BRIDGE RD | DRY CREEK | 0.4 MI W OF DRY CREEK RD | Steel Truss - Thru | NR eligible | 1915 | -- | 185.0 | 190.0 | Poor | 41.3 | 20C0248 |
| NBI report Bridgehunter | MELITA ROAD | SANTA ROSA CREEK | 0.1 M S LOS ALAMOS RD | Concrete Arch - Deck | -- | 1915 | -- | 49.9 | 86.9 | Good | 60.2 | 20C0186 |
| NBI report | NCRRA/NWP RR | OLD REDWOOD HWY | 32.2 MI N MARIN LINE | Steel Girder and floorbeam system | -- | 1915 | -- | 40.0 | -- | -- | -- | 20C0090 |
| NBI report Bridgehunter | DUNBAR RD | CALABAZAS CREEK | 0.1 MI N SYLVIA DRIVE | Masonry Arch - Deck | -- | 1915 | 1940 | 23.0 | 24.9 | Poor | 36.0 | 20C0271 |
| NBI report | VALLEY FORD RD | STEMPLE CREEK | 7.5 MI INTERSECTION SR 1 | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1915 | 1950 | 15.1 | 39.0 | Poor | 45.9 | 20C0113 |
| NBI report | BLOOMFIELD RD | BLOOMFIELD CREEK | 0.18 MI N VALLEY FORD RD | Concrete Tee beam | -- | 1917 | 1984 | 36.1 | 68.9 | Poor | 47.5 | 20C0293 |
| NBI report | FRANCE ST | NATHANSON CREEK | 0.1 MI E SR 12 SONOMA | Concrete Tee beam | -- | 1918 | -- | 26.9 | 32.2 | Good | 55.5 | 20C0496 |
| NBI report | SANTA ROSA AVE | N BRA LAG DE SANTA ROSA | NEAR SANTA ROSA AVE. | Concrete Slab (3 spans) | -- | 1918 | 1928 | 18.0 | 43.0 | Poor | 81.6 | 20C0063 |
| NBI report Bridgehunter | ANNAPOLIS RD | GUALALA RIV (CLARK XING) | INTRX STWRT PT-SKGSSP RD | Steel Truss - Thru | -- | 1920 | -- | 180.1 | 181.1 | Fair | 47.2 | 20C0141 |
| NBI report | GRANT ST | FOSS CREEK | IN HEALDSBURG | Concrete Tee beam (2 spans) | -- | 1920 | -- | 19.0 | 37.1 | Fair | 40.5 | 20C0343 |
| NBI report | SALMON CREEK RD | TANNERY CREEK | 0.12 MI W TANNERY CRK RD | Concrete Slab | -- | 1920 | 1950 | 27.9 | 28.9 | Fair | 66.8 | 20C0321 |
| NBI report | WATMAUGH ROAD | FOWLER CREEK | 0.3 MI E ARNOLD | Concrete Slab (3 spans) | -- | 1920 | 1965 | 17.4 | 53.2 | Poor | 34.7 | 20C0257 |
| NBI report | E STREET | SANTA ROSA CREEK | BETWN SONOMA AVE & SEC ST | Concrete Tee beam (2 spans) | -- | 1920 | 1966 | 44.0 | 89.9 | Good | 96.9 | 20C0166 |
| NBI report | WATMAUGH ROAD | NATHANSON CREEK | 0.5 MI E SR 12 | Concrete Tee beam | -- | 1920 | 1970 | 33.1 | 34.1 | Fair | 63.2 | 20C0255 |
| NBI report | PETALUMA HILL RD | LICHAU CREEK | 0.1 MI N JCT OLD RDW HWY | Concrete Tee beam (3 spans) | -- | 1920 | 1976 | 16.1 | 48.9 | Fair | 56.9 | 20C0129 |
| NBI report Bridgehunter | WESTSIDE RD | PORTER CREEK | 1.0 MI N WOHLER BR | Concrete Tee beam | -- | 1921 | -- | 29.9 | 32.2 | Good | 69.5 | 20C0138 |
| NBI report Bridgehunter | WOHLER RD | RUSSIAN RIVER | 1.5 MI FROM RIVER RD | Steel Truss - Thru (3 spans) | NR eligible | 1921 | -- | 230.0 | 768.1 | Poor | 59.0 | 20C0155 |
| NBI report | STATE ROUTE 116 | JONES CREEK | 04-SON-116-19.90 | Concrete Tee beam | -- | 1921 | 1956 | 20.0 | 22.0 | Good | 34.8 | 20 0094 |
| NBI report | GUERNEVILLE RD | ABRAMSON CREEK | 4.0 MI INTX WITH SR 116 | Concrete Tee beam | -- | 1921 | 1962 | 30.8 | 33.1 | Good | 91.2 | 20C0074 |
| NBI report | GUERNEVILLE RD | PETERSON CREEK | 4.77 MI INTX WITH SR 116 | Concrete Tee beam | -- | 1921 | 1962 | 24.9 | 25.9 | Good | 91.2 | 20C0075 |
| NBI report | GUERNEVILLE RD | FOREST VIEW CREEK | 4.82 MI INTX WITH SR 116 | Concrete Tee beam | -- | 1921 | 1962 | 24.9 | 25.9 | Good | 91.2 | 20C0076 |
| NBI report | STWRT PT-SKGG SPRG | HOUSE CREEK | 13.5 MI E/O SR 1 | Concrete Tee beam (3 spans) | -- | 1921 | 1976 | 49.9 | 149.9 | Fair | 76.3 | 20C0144 |
| NBI report | GUERNEVILLE ROAD | PINER CREEK | 1/2 MI E FULTON ROAD | Concrete Tee beam (2 spans) | -- | 1921 | 1987 | 48.9 | 98.1 | Good | 65.3 | 20C0077 |
| NBI report Bridgehunter | HEALDSBURG AVE | RUSSIAN RIVER | 35.2 MI N MARIN CO LINE | Steel Truss - Thru (2 spans) | NR listed | 1921 | 2016 | 198.2 | 436.7 | Good | 72.5 | 20C0065 |
| NBI report | STATE ROUTE 121 | YELLOW CREEK | 04-SON-121-6.52 | Concrete Tee beam | -- | 1922 | -- | 20.0 | 22.0 | Good | 53.5 | 20 0021 |
| NBI report | STATE ROUTE 121 | BRANCH ARROYO SECO | 04-SON-121-8.51 | Concrete Slab | -- | 1922 | -- | 20.0 | 22.0 | Good | 70.5 | 20 0121 |
| NBI report | BODEGA HIGHWAY | JONIVE CREEK | 7.5 MI E/O SR 1 | Concrete Tee beam | -- | 1922 | 1950 | 24.9 | 25.9 | Good | 72.3 | 20C0131 |
| NBI report | BODEGA HIGHWAY | JONIVE CREEK 1 | 7.3 MI FROM INT W/ SR 1 | Concrete Tee beam | -- | 1922 | 1950 | 24.0 | 25.9 | Good | 73.7 | 20C0134 |
| NBI report | WOHLER RD | MARK WEST CREEK | NEAR RIVER RD | Concrete Tee beam (5 spans) | -- | 1922 | 1976 | 20.0 | 99.1 | Fair | 58.7 | 20C0139 |
| NBI report | BODEGA HIGHWAY | ATASCADERO CREEK | 9.3 MI E/O SR 1 | Concrete Tee beam (4 spans) | -- | 1923 | -- | 23.0 | 94.2 | Fair | 42.6 | 20C0130 |
| NBI report | STATE ROUTE 12 | SONOMA CREEK | 04-SON-012-25.82 | Concrete Slab (2 spans) | -- | 1923 | 1951 | 30.8 | 64.0 | Good | 80.1 | 20 0027 |
| NBI report | STATE ROUTE 121 | ARROYO SECO | 04-SON-121-8.43 | Concrete Tee beam (2 spans) | -- | 1923 | 1967 | 40.0 | 82.0 | Fair | 48.0 | 20 0023 |
| NBI report Bridgehunter | OLD DUNCANS GRD RD | AUSTIN CREEK | BTN CZDERO HY&AUSTN CR RD | Steel Truss - Thru (2 spans) | Closed | 1924 | -- | 117.1 | 265.1 | Poor | 42.9 | 20C0094 |
| NBI report | STATE ROUTE 12 | STUART CREEK | 04-SON-012-30.80 | Concrete Tee beam | -- | 1924 | -- | 29.9 | 32.2 | Good | 58.6 | 20 0025 |
| NBI report Bridgehunter | WEST DRY CREEK RD | PENA CREEK | 0.7 MI NW YOAKIM BR RD | Concrete Tee beam (4 spans) | -- | 1924 | -- | 29.9 | 120.1 | Poor | 40.5 | 20C0407 |
| NBI report | SR 12 | AGUA CALIENTE CREEK | 04-SON-012-35.75 | Concrete Tee beam | -- | 1924 | 1970 | 27.9 | 30.8 | Good | 88.7 | 20 0024 |
| NBI report | ARNOLD DR | SONOMA CREEK | 7.8 MI N OF SR 116 | Concrete Tee beam (2 spans) | -- | 1924 | 1971 | 72.2 | 129.9 | Poor | 75.7 | 20C0214 |
| NBI report | OLD GRAVENSTEIN HY | BLUCHER CREEK | 0.25 MI N OF S.H. 116 | Concrete Tee beam (3 spans) | -- | 1925 | -- | 22.0 | 66.9 | Good | 68.4 | 20C0004 |
| NBI report | OLD REDWOOD HWY | ROBBINS CREEK | 0.5 MI S/O PLEASANT RD | Steel Stringer/Multi-beam or girder | -- | 1925 | -- | 27.9 | 30.8 | Fair | 52.9 | 20C0086 |
| NBI report | PETALUMA BLVD N | PETALUMA RIVER | 0.2 MI S JCT US 101 | Concrete Tee beam (3 spans) | -- | 1925 | -- | 39.7 | 113.9 | Good | 60.5 | 20C0056L |
| NBI report | PLEASANT AVE | POOL CREEK | 0.8 MI E OF OLD REDWOOD H | Concrete Tee beam | -- | 1925 | -- | 29.9 | 30.8 | Fair | 65.8 | 20C0241 |
| NBI report | FOURTH ST | FIFE CREEK | NEAR BROOKSIDE LN | Concrete Tee beam | -- | 1926 | -- | 34.1 | 35.1 | Fair | 50.5 | 20C0318 |
| NBI report | VALLEY FORD RD | GOSSAGE CREEK | 6.6 MI INTERSECTION SR 1 | Concrete Tee beam (2 spans) | -- | 1926 | 1950 | 22.3 | 43.0 | Good | 73.2 | 20C0114 |
| NBI report | CANFIELD RD | BLUCHER CREEK | 0.9 MI N OF BLANK RD | Concrete Tee beam (2 spans) | -- | 1927 | -- | 19.4 | 40.0 | Good | 55.1 | 20C0235 |
| NBI report | SANTA ROSA AVE | SANTA ROSA CREEK | BETWN SONOMA AVE-FIRST ST | Concrete Tee beam (3 spans) | -- | 1928 | -- | 49.9 | 104.0 | Good | 91.5 | 20C0041 |
| NBI report | WEST DRY CREEK RD | GRAPE CREEK | 5.38 MI NW WESTSIDE RD | Concrete Tee beam | -- | 1928 | 1960 | 24.0 | 25.9 | Fair | 66.3 | 20C0408 |
| NBI report | WEST DRY CREEK RD | CRANE CREEK | 4.3 MI NW WESTSIDE ROAD | Concrete Tee beam | -- | 1928 | 1960 | 20.3 | 23.0 | Good | 72.2 | 20C0409 |
| NBI report | ARNOLD DR | STEWART CREEK | 0.4 MI S JCT SR 12 | Concrete Tee beam (2 spans) | -- | 1928 | 1962 | 15.1 | 32.2 | Good | 95.2 | 20C0471 |
| NBI report | CANYON RD | CANYON CREEK | 0.4 MI E JCT DRY CREEK RD | Concrete Tee beam | -- | 1928 | 1962 | 20.0 | 22.0 | Good | 75.4 | 20C0442 |
| NBI report | WARM SPRINGS RD | CALABAZAS CREEK | NEAR ARNOLD DR | Steel Stringer/Multi-beam or girder (2 spans) | -- | 1928 | 1975 | 21.0 | 44.0 | Fair | 48.3 | 20C0215 |
| NBI report | W DRY CREEK ROAD | PINE RIDGE CANYON | 1.35 MI NW WESTSIDE RD | Concrete Tee beam | -- | 1928 | 1976 | 21.0 | 22.0 | Good | 74.3 | 20C0410 |
| NBI report | ADOBE RD | LICHAU CREEK | 0.08 MI E OLD REDWOOD HWY | Concrete Tee beam | -- | 1929 | -- | 22.0 | 24.0 | Good | 65.6 | 20C0309 |
| NBI report | BENNETT VALLEY RD | MATANZAS CREEK | 7.7 MI W WARM SPRINGS RD | Concrete Tee beam | -- | 1929 | -- | 49.9 | 53.2 | Good | 62.8 | 20C0220 |
| NBI report Bridgehunter | WATMAUGH ROAD | SONOMA CREEK | 0.3 MI WEST OF SR 12 | Steel Truss - Thru | NR eligible | 1929 | -- | 103.0 | 170.0 | Poor | 30.0 | 20C0017 |
| NBI report | U.S. ROUTE 101 NB | SAN ANTONIO CREEK | 04-SON-101-0.01 | Concrete Tee beam (3 spans) | -- | 1929 | 1979 | 40.0 | 120.1 | Good | 79.0 | 20 0019R |
| NBI report Bridgehunter | ARNOLD DRIVE | SONOMA CREEK | 7.6 MI NORTH OF SR 116 | Steel Truss - Thru | -- | 1930 | -- | 140.1 | 143.1 | Fair | 32.9 | 20C0213 |
| NBI report | CORBY AVE | COLGAN CREEK | 0.1 MILE SOUTH OF HEARN | Steel Stringer/Multi-beam or girder | -- | 1930 | -- | 27.9 | 32.2 | Fair | 50.6 | 20C0190 |
| NBI report Bridgehunter | EAGLE NEST LANE | HILLSIDE | 0.2 MI N RIVER RD | Wood Stringer/Multi-beam or girder (3 spans) | -- | 1930 | -- | 19.0 | 56.1 | Poor | 44.9 | 20C0360 |
| NBI report Bridgehunter | MEMORY LANE | HILLSIDE | 0.04 MI NE CYN THREE RD | Wood Stringer/Multi-beam or girder (5 spans) | -- | 1930 | -- | 19.0 | 88.9 | Poor | 50.7 | 20C0359 |
| NBI report Bridgehunter | NEELEY ROAD | HILLSIDE | 1.1 MI W S.H. 116 | Wood Stringer/Multi-beam or girder (10 spans) | -- | 1930 | -- | 29.9 | 200.8 | Fair | 59.1 | 20C0356 |
| NBI report | STATE ROUTE 116 | GREEN VALLEY CREEK | 04-SON-116-18.66 | Concrete Tee beam (8 spans) | -- | 1930 | -- | 23.0 | 187.0 | Poor | 15.0 | 20 0092 |
| NBI report Bridgehunter | SUMMERHOME PARK RD | HILLSIDE | 0.1 MI NW LAUREL RD | Wood Stringer/Multi-beam or girder (4 spans) | -- | 1930 | -- | 18.0 | 74.2 | Poor | 31.8 | 20C0379 |
| NBI report | WARM SPRINGS RD | YULUPA CREEK | 11.15 MI N OF S.H. 116 | Concrete Culvert (2 spans) | -- | 1930 | -- | 10.8 | 23.0 | Poor | 24.3 | 20C0217 |
| NBI report | SONOMA MTN RD | MATANZAS CREEK | 0.5 MI S BENNET VALLEY RD | Concrete Slab | -- | 1930 | 1969 | 48.9 | 49.9 | Good | 65.0 | 20C0264 |
| NBI report Bridgehunter | SUMMERHOME PARK RD | HILLSIDE | 0.85 MI SW RIVER RD | Wood Stringer/Multi-beam or girder (18 spans) | -- | 1930 | 2009 | 19.0 | 338.9 | Poor | 63.2 | 20C0377 |
| NBI report | WARM SPRINGS RD | SONOMA CREEK | 2.8 MI S OF SR 12 | Concrete Tee beam | -- | 1931 | -- | 39.0 | 42.0 | Fair | 60.1 | 20C0218 |
| NBI report | STATE ROUTE 37 | TOLAY CREEK | 04-SON-037-4.04 | Prestressed Box beam or girders - Multiple | -- | 1931 | 1972 | 60.0 | 61.0 | Good | 83.9 | 20 0090 |
| NBI report | STATE ROUTE 128 | OAT VALLEY CREEK | 04-SON-128-L4.64 | Concrete Slab | -- | 1932 | 1987 | 24.0 | 24.0 | Good | 97.6 | 20 0033 |
| NBI report Bridgehunter | D STREET | PETALUMA RIVER | NEAR DOWNTOWN PETALUMA | Steel Movable - Bascule | -- | 1933 | 1953 | 80.1 | 205.1 | Good | 65.6 | 20C0048 |
| NBI report Bridgehunter | BOHEMIAN HWY | RUSSIAN RIVER | AT MONTE RIO | Steel Truss - Thru (5 spans) | -- | 1934 | -- | 100.1 | 772.0 | Fair | 54.8 | 20C0018 |
| NBI report Bridgehunter | WESTSIDE ROAD | DRY CREEK | 0.5 MI WEST OF US 101 | Steel Truss - Thru (4 spans) | -- | 1934 | -- | 82.0 | 330.1 | Poor | 24.6 | 20C0040 |
| NBI report | BOHEMIAN HWY | DUTCH BILL CREEK | 5.4 MI FROM SR 116 | Concrete Slab | -- | 1935 | -- | 24.0 | 25.9 | Fair | 49.4 | 20C0158 |
| NBI report | DRY CRK CANYON RD | LYTTON SPRINGS CREEK | INTERSECTION LYTTON RD | Concrete Culvert (2 spans) | -- | 1935 | -- | 9.8 | 22.0 | Fair | 71.3 | 20C0154 |
| NBI report | FAUGHT ROAD | PRUITT CREEK | 0.3 MI N OF E SHILOH RD | Concrete Culvert (2 spans) | -- | 1935 | -- | 14.1 | 28.9 | Good | 53.2 | 20C0334 |
| NBI report | HARNEY DRIVE | SONOMA CREEK | SONOMA STATE INSTITUTION | Concrete Tee beam (3 spans) | -- | 1935 | -- | 51.8 | 159.1 | Fair | 52.5 | 20I0001 |
| NBI report | STWRT PT-SKGG SPRG | SHINGLE MILL CR (OHLSON) | 14.3 MI SR 1 VIA ANPLS RD | Concrete Slab | -- | 1935 | -- | 21.3 | 22.0 | Fair | 47.7 | 20C0142 |
| NBI report | SOUTH E ST | MATANZAS CREEK | BETWN TUPPER & SONOMA AVE | Concrete Tee beam | -- | 1935 | 1949 | 41.0 | 70.9 | Fair | 47.9 | 20C0165 |
| NBI report | CALISTOGA RD | HUMBUG CREEK | 4.9 MI N/O SR 12 | Concrete Slab | -- | 1935 | 1962 | 24.0 | 24.9 | Fair | 35.7 | 20C0121 |
| NBI report | W THIRD ST | SANTA ROSA CREEK | BTWN RBTS & WLSN | Concrete Tee beam (2 spans) | -- | 1935 | 1968 | 50.9 | 126.0 | Good | 94.6 | 20C0169 |
| NBI report | W COLLEGE AVE | COLLEGE CREEK | 0.05 MI W MARLOW RD | Concrete Culvert (3 spans) | -- | 1935 | 1981 | 11.2 | 21.0 | Good | 94.6 | 20C0162 |
| NBI report | STATE ROUTE 116 | GOSSAGE CREEK | 04-SON-116-33.37 | Concrete Culvert (3 spans) | -- | 1936 | 1954 | 14.1 | 44.9 | Good | 76.7 | 20 0104 |
| NBI report Bridgehunter | STWRT PT-SKGG SPRG | HAUPT CREEK | 6.0 MI E OF SR 1 | Steel Truss - Thru | NR eligible | 1937 | -- | 130.3 | 133.9 | Good | 70.0 | 20C0224 |
| NBI report | CO RD 80117 | RUSSIAN RIV SUMMER XING | JUST W GUERNEWOOD RD | Wood Stringer/Multi-beam or girder (6 spans) | Closed | 1938 | -- | 19.0 | 94.2 | Fair | 48.6 | 20C0353 |
| NBI report | STATE ROUTE 116 | BLUCHER CREEK | 04-SON-116-29.83 | Concrete Culvert (3 spans) | -- | 1938 | -- | 9.8 | 34.1 | Good | 84.1 | 20 0103 |
| NBI report Bridgehunter | CROCKER RD | RUSSIAN RIVER | 0.6 MI N/E OF S.R. 101 | Steel Truss - Thru (3 spans) | -- | 1938 | 2007 | 120.1 | 527.9 | Fair | 50.0 | 20C0002 |
| NBI report | ARNOLD DR | SONOMA CR (GLEN ELLEN) | LONDON RANCH RD | Concrete Tee beam (2 spans) | -- | 1939 | -- | 49.9 | 149.9 | Good | 56.5 | 20C0012 |
| NBI report | LAWNDALE RD | SONOMA CREEK | WARM SPRINGS ROAD | Concrete Slab (3 spans) | -- | 1940 | -- | 28.5 | 66.9 | Good | 61.0 | 20C0270 |
| NBI report | OAK ST | DOWDALL CREEK | 0.1 MI W/O RIVERSIDE DR | Concrete Culvert (2 spans) | -- | 1940 | -- | 11.2 | 22.0 | Fair | 74.7 | 20C0260 |
| NBI report Bridgehunter | OLD CAZADERO RD | AUSTIN CREEK | AT CAZADERO HWY | Steel Truss - Thru | -- | 1940 | -- | 89.9 | 92.9 | Fair | 31.1 | 20C0430 |
| NBI report | PETALUMA BLVD N | PETALUMA RIVER | 0.2 MI S JCT US 101 | Concrete Slab (6 spans) | -- | 1940 | -- | 27.9 | 126.0 | Fair | 77.5 | 20C0056R |
| NBI report | STATE ROUTE 1 | RUSSIAN GULCH | 04-SON-001-24.50 | Concrete Slab (3 spans) | -- | 1940 | -- | 42.0 | 105.0 | Fair | 56.7 | 20 0070 |
| NBI report | STATE ROUTE 116 | RUSSIAN RIVER | 04-SON-116-10.46 | Concrete Slab (13 spans) | -- | 1940 | -- | 20.0 | 256.9 | Fair | 53.1 | 20 0072 |
| NBI report | GEYSERS RD | FRASIER CREEK | 20.4 MI N OF SR 128 | Concrete Slab (2 spans) | -- | 1941 | -- | 19.0 | 41.0 | Good | 60.7 | 20C0227 |
| NBI report | STATE ROUTE 116 | RUSSIAN RIVER | 04-SON-116-10.38 | Concrete Slab (14 spans) | -- | 1941 | -- | 20.0 | 253.0 | Good | 60.2 | 20 0071 |
| NBI report | WINDSOR RD | BRANCH WINDSOR CREEK | 0.3 MI N OF SILK RD | Steel Stringer/Multi-beam or girder | -- | 1946 | -- | 29.9 | 30.8 | Fair | 58.7 | 20C0342 |
| NBI report | FRANZ VALEY SCH RD | FRANZ CREEK | JUST N/O FRANZ RD | Steel Stringer/Multi-beam or girder | -- | 1946 | 2002 | 27.9 | 32.2 | Poor | 35.7 | 20C0326 |
| NBI report | U.S. ROUTE 101 SB | SAN ANTONIO CREEK | 04-SON-101-0.01 | Concrete Tee beam (3 spans) | -- | 1947 | -- | 40.0 | 120.1 | Fair | 73.1 | 20 0019L |
| NBI report Bridgehunter | ALEXANDER VALLEY R | RUSSIAN RIVER - JIMTOWN | NORTH OF HEALDSBURG | Steel Truss - Thru (5 spans) | -- | 1949 | -- | 120.1 | 1383.9 | Fair | 49.9 | 20C0006 |
| NBI report | OLD RIVER RD | GREEN VALLEY CREEK | 0.1 MI SE/O MARTINELLI RD | Concrete Slab (9 spans) | -- | 1949 | -- | 24.0 | 180.1 | Good | 92.8 | 20C0357 |
| NBI report | VERANO AVE | SONOMA CREEK | 0.7 MI E ARNOLD DR | Concrete Tee beam (5 spans) | -- | 1949 | 2006 | 57.1 | 200.1 | Fair | 46.3 | 20C0008 |
| NBI report Bridgehunter | BOHAN DILLON RD | SOUTH FORK GUALALA RIVER | 0.1 MI N FORT ROSS RD | Steel Truss - Deck | -- | 1950 | -- | 71.9 | 77.1 | Fair | 55.3 | 20C0435 |
| NBI report | MONTGOMERY DR | SANTA ROSA CREEK RSEVR | 0.1 M N MONTGOMERY DR | Concrete Slab (3 spans) | -- | 1950 | -- | 29.9 | 90.9 | Good | 64.2 | 20C0178 |
| NBI report | RAINSVILLE RD | MARIN CREEK | 0.5 MI W STONY POINT RD | Concrete Slab (2 spans) | -- | 1950 | -- | 13.5 | 27.9 | Good | 69.2 | 20C0301 |
| NBI report | RIVER RD | HOBSON CREEK | 5.19 MI INTX WITH SR 116 | Concrete Slab (8 spans) | -- | 1950 | -- | 27.9 | 226.1 | Poor | 68.8 | 20C0036 |
| NBI report | SCENIC AVE | NO NAME CREEK | 0.1 MI W OF S MOORLAND AV | Concrete Culvert (2 spans) | -- | 1950 | -- | 10.5 | 22.0 | Good | 90.3 | 20C0278 |
| NBI report | STATE ROUTE 12 | TYLER'S DRAINAGE | 04-SON-012-23.00 | Concrete Culvert (3 spans) | -- | 1950 | -- | 11.5 | 31.5 | Good | 84.0 | 20 0282 |
| NBI report | ADOBE RD | LYNCH CREEK | 3.2 MI S PETALUMA HILL RD | Steel Stringer/Multi-beam or girder | -- | 1950 | 1963 | 26.9 | 28.9 | Fair | 58.0 | 20C0205 |
| NBI report | CALISTOGA ROAD | PORTER CREEK | 7.2 MI INTRX WITH SR 12 | Concrete Culvert (2 spans) | -- | 1950 | 1969 | 13.5 | 27.9 | Fair | 95.9 | 20C0120 |
| NBI report | BROOKWOOD AVE | MATANZAS CR (BROOKWOOD) | BETN CLARK ST-SONOMA AVE | Concrete Slab (4 spans) | -- | 1951 | -- | 29.9 | 116.1 | Good | 93.7 | 20C0163 |
| NBI report Bridgehunter | STWRT PT-SKGG SPRG | DRY CREEK (BOARD BR) | AT DAM-END DRY CREEK RD | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1951 | -- | 120.1 | 220.2 | Fair | 47.2 | 20C0151 |
| NBI report | ST HELENA ROAD | VAN BUREN CREEK | 1.2 MI W CALISTOGA RD | Concrete Culvert (2 spans) | -- | 1952 | 1975 | 11.2 | 24.0 | Fair | 70.2 | 20C0267 |
| NBI report | CALISTOGA RD | WEEKS CREEK | AT ST. HELENA RD | Concrete Culvert (2 spans) | -- | 1953 | -- | 12.1 | 24.9 | Fair | 84.0 | 20C0123 |
| NBI report | MAIN ST | DUTCH BILL CREEK | MONTE RIO-0.26 M FM SR116 | Concrete Slab (4 spans) | -- | 1953 | -- | 35.1 | 123.0 | Fair | 80.5 | 20C0160 |
| NBI report | TALBOT AVE | SANTA ROSA CREEK | JUST S INTRX WITH 4TH AVE | Concrete Slab (5 spans) | -- | 1953 | -- | 27.9 | 128.9 | Fair | 84.9 | 20C0475 |
| NBI report | AGUA CALIENTE RD | SONOMA CREEK | 0.4 MI W HWY 12 | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1954 | -- | 49.9 | 152.9 | Fair | 63.5 | 20C0010 |
| NBI report | U.S. ROUTE 101 | CORONA DITCH | 04-SON-101-6.85-PET | Concrete Culvert (2 spans) | -- | 1954 | -- | 9.8 | 22.0 | Fair | 70.0 | 20 0177 |
| NBI report | STATE ROUTE 116 | ADOBE CREEK | 04-SON-116-36.19 | Concrete Slab (2 spans) | -- | 1954 | 1997 | 19.4 | 33.1 | Good | 73.5 | 20 0062 |
| NBI report | BODEGA HWY | NOLAN CREEK | 1.2 MI NE INTX SR 1 | Concrete Culvert (2 spans) | -- | 1955 | -- | 17.4 | 35.4 | Fair | 70.2 | 20C0132 |
| NBI report | BOYES BLVD | SONOMA CREEK | JUST EAST OF RIVERSIDE DR | Steel Stringer/Multi-beam or girder (2 spans) | -- | 1955 | -- | 71.9 | 86.0 | Fair | 58.9 | 20C0262 |
| NBI report | CORONA RD | U.S. HIGHWAY 101 | 04-SON-101-6.83-PET | Concrete Box beam or girders - Multiple (7 spans) | -- | 1955 | -- | 49.9 | 351.1 | Good | 65.5 | 20 0160 |
| NBI report Bridgehunter | FREESTONE FLAT RD | SALMON CREEK | 0.2 MI E BOHEMIAN HWY | Steel Truss - Deck | -- | 1955 | -- | 63.0 | 103.0 | Poor | 30.8 | 20C0440 |
| NBI report | HOEN AVENUE | SPRING CREEK | 0.3 M SOUTH OF SONOMA AVE | Steel Stringer/Multi-beam or girder | -- | 1955 | -- | 48.9 | 53.2 | Good | 78.8 | 20C0193 |
| NBI report | OLD CAZADERO RD | HUBERT CREEK | 0.9 MI NW SH 116 | Concrete Slab | -- | 1955 | -- | 27.6 | 27.9 | Fair | 69.6 | 20C0323 |
| NBI report | S101-WASHINGTON | WASHINGTON STREET CREEK | 04-SON-101-4.80-PET | Concrete Tee beam (3 spans) | -- | 1955 | -- | 47.9 | 120.1 | Good | 93.7 | 20 0164K |
| NBI report | U.S. ROUTE 101 NB | LYNCH CREEK | 04-SON-101-5.19-PET | Concrete Slab (3 spans) | -- | 1955 | -- | 29.9 | 79.1 | Fair | 80.6 | 20 0162R |
| NBI report | U.S. ROUTE 101 SB | LYNCH CREEK | 04-SON-101-5.19-PET | Concrete Slab (3 spans) | -- | 1955 | -- | 29.9 | 79.1 | Fair | 80.6 | 20 0162L |
| NBI report | US HIGHWAY 101 NB | WASHINGTON STREET CREEK | 04-SON-101-4.77-PET | Concrete Slab (3 spans) | -- | 1955 | -- | 25.9 | 66.9 | Good | 91.9 | 20 0163R |
| NBI report | US HIGHWAY 101 SB | WASHINGTON STREET CREEK | 04-SON-101-4.77-PET | Concrete Slab (3 spans) | -- | 1955 | -- | 25.9 | 66.9 | Good | 92.9 | 20 0163L |
| NBI report | U.S. ROUTE 101 NB | NWP RR | 04-SON-101-5.76-PET | Concrete Box beam or girders - Multiple (5 spans) | -- | 1955 | 1994 | 80.1 | 317.9 | Fair | 73.0 | 20 0158R |
| NBI report | U.S. ROUTE 101 SB | NWP RR | 04-SON-101-5.76-PET | Concrete Box beam or girders - Multiple (5 spans) | -- | 1955 | 1994 | 80.1 | 317.9 | Fair | 73.2 | 20 0158L |
| NBI report | FITCH MOUNTAIN RD | HILLSIDE | 1.5 MI E JCT UNV ST HELDG | Steel Stringer/Multi-beam or girder (17 spans) | -- | 1955 | 2012 | 19.4 | 317.9 | Fair | 64.9 | 20C0418 |
| NBI report | CAZADERO HWY | AUSTIN CREEK | JUST S OF SCANLON RD | Concrete Tee beam (4 spans) | -- | 1956 | -- | 65.0 | 199.2 | Fair | 78.0 | 20C0427 |
| NBI report | CAZADERO HWY | AUSTIN CREEK | WEST OF SR 1 | Concrete Box beam or girders - Multiple (3 spans) | -- | 1956 | -- | 80.1 | 182.1 | Fair | 83.2 | 20C0428 |
| NBI report | CHALK HILL RD | BROOKS CREEK | 4.5 MI S OF SR 128 | Concrete Slab (2 spans) | -- | 1956 | -- | 25.9 | 53.2 | Fair | 64.4 | 20C0330 |
| NBI report | GRANDVIEW RD | JONIVE CREEK | 0.05 MI N BODEGA HWY | Concrete Slab | -- | 1956 | -- | 24.9 | 26.9 | Fair | 70.5 | 20C0107 |
| NBI report | LAUGHLIN RD | FIFE CREEK | 0.1 MI W ARMSTRONG WDS RD | Concrete Slab | -- | 1956 | -- | 30.8 | 33.1 | Fair | 72.4 | 20C0044 |
| NBI report | MADRONE RD | SONOMA CREEK | 0.3 MI E OF ARNOLD DR | Concrete Tee beam (3 spans) | -- | 1956 | -- | 51.8 | 161.1 | Fair | 76.5 | 20C0011 |
| NBI report Bridgehunter | MOSCOW RD | HILLSIDE | 0.2 MI NW MAIN | Concrete Slab (14 spans) | -- | 1956 | -- | 24.6 | 346.1 | Poor | 54.6 | 20C0047 |
| NBI report | OLD REDWOOD HWY | LAGUNA DE SANTA ROSA | COMMERCE BLVD | Concrete Culvert (2 spans) | -- | 1956 | -- | 11.2 | 24.0 | Fair | 67.5 | 20C0067 |
| NBI report | OLD REDWOOD HWY | MARK WEST CREEK | 0.4 MI S/O AIRPORT BLVD | Concrete Slab (6 spans) | -- | 1956 | -- | 31.2 | 172.9 | Fair | 58.4 | 20C0083 |
| NBI report | STATE ROUTE 1 | CHENEY GULCH | 04-SON-001-9.16 | Concrete Culvert (2 spans) | -- | 1956 | -- | 9.8 | 22.0 | Fair | 88.2 | 20 0189 |
| NBI report | YOAKIM BRIDGE RD | DRY CREEK | 0.3 MI SW DRY CREEK ROAD | Concrete Tee beam (7 spans) | -- | 1956 | -- | 67.9 | 442.0 | Fair | 67.7 | 20C0106 |
| NBI report | STATE ROUTE 1 | SCOTTY CREEK | 04-SON-001-15.30 | Concrete Culvert (4 spans) | -- | 1956 | 1959 | 7.9 | 32.2 | Fair | 94.3 | 20 0198 |
| NBI report | STATE ROUTE 12 | SANTA ROSA CREEK | 04-SON-012-T18.51-SRO | Concrete Tee beam (3 spans) | -- | 1956 | 1965 | 42.0 | 130.9 | Good | 65.4 | 20 0238 |
| NBI report | REDWOOD DR | COPELAND CREEK | 0.42 MI S ROHNERT PK EXPY | Concrete Slab (2 spans) | -- | 1956 | 1980 | 15.4 | 32.2 | Fair | 84.2 | 20C0069 |
| NBI report | MISSION BLVD | SANTA ROSA CREEK | 0.1 MI S SONOMA HWY SR 12 | Concrete Slab (5 spans) | -- | 1956 | 1981 | 40.0 | 183.1 | Poor | 46.6 | 20C0167 |
| NBI report | REDWOOD | LAGUNA DE SANTA ROSA | JUST W/O SR101 | Concrete Culvert (2 spans) | -- | 1956 | 2002 | 11.2 | 22.0 | Good | 90.0 | 20C0068 |
| NBI report | U.S. HIGHWAY 101 | LAGUNA DE SANTA ROSA | 04-SON-101-13.09-RNPK | Concrete Culvert (2 spans) | -- | 1956 | 2011 | 9.8 | 22.0 | Good | 89.4 | 20 0016 |
| NBI report | U.S. HIGHWAY 101 | SIERRA AVE | 04-SON-101-12.00-COTI | Concrete Tee beam (3 spans) | -- | 1956 | 2011 | 45.9 | 121.4 | Good | 82.5 | 20 0167 |
| NBI report | US HIGHWAY 101 | COPELAND CREEK | 04-SON-101-13.51-RNPK | Concrete Slab (2 spans) | -- | 1956 | 2011 | 15.1 | 32.2 | Poor | 51.9 | 20 0015 |
| NBI report | U.S. ROUTE 101 NB | WILLOW BROOK | 04-SON-101-8.05-PET | Concrete Slab (3 spans) | -- | 1956 | 2012 | 26.9 | 69.9 | Good | 89.2 | 20 0161 |
| NBI report | BAKER AVENUE | U.S. HIGHWAY 101 | 04-SON-101-19.00 | Concrete Box beam or girders - Multiple (4 spans) | -- | 1957 | -- | 95.1 | 246.1 | Fair | 57.1 | 20 0173 |
| NBI report | CAZADERO HWY | ST ELMO CREEK | EAST OF NEWMARK AVE | Concrete Slab (2 spans) | -- | 1957 | -- | 12.1 | 25.9 | Good | 77.1 | 20C0429 |
| NBI report | DUTCHER CREEK RD | DUTCHER CREEK | 0.1 MI N DRY CREEK RD | Concrete Culvert (2 spans) | -- | 1957 | -- | 13.1 | 26.9 | Fair | 77.3 | 20C0411 |
| NBI report | GUERNEVILLE RD | LAGUNA DE SANTA ROSA | 1.8 MI E/O SR 116 | Concrete Tee beam (9 spans) | -- | 1957 | -- | 51.8 | 445.9 | Good | 81.0 | 20C0052 |
| NBI report | HEARN AVENUE | U.S. HIGHWAY 101 & RAMPS | 04-SON-101-18.49 | Concrete Box beam or girders - Multiple (4 spans) | -- | 1957 | -- | 78.1 | 232.0 | Fair | 70.8 | 20 0176 |
| NBI report | MILL CREEK RD | MILL CREEK | 3.1 MI W OF WESTSIDE RD | Concrete Slab (3 spans) | -- | 1957 | -- | 40.0 | 103.0 | Good | 78.1 | 20C0348 |
| NBI report | RAMP/CONNECTOR 101 | COLGAN CREEK | 04-SON-101-18.91 | Concrete Culvert (2 spans) | -- | 1957 | -- | 9.8 | 22.0 | Good | 96.0 | 20 0196K |
| NBI report | SANTA ROSA AV-S101 | U.S. HIGHWAY 101 | 04-SON-101-15.53 | Concrete Box beam or girders - Multiple (2 spans) | -- | 1957 | -- | 77.1 | 159.1 | Poor | 64.1 | 20 0171K |
| NBI report | TODD ROAD | U.S. HIGHWAY 101 & RAMPS | 04-SON-101-16.54 | Concrete Box beam or girders - Multiple (4 spans) | -- | 1957 | -- | 75.1 | 208.0 | Poor | 63.1 | 20 0172 |
| NBI report | U.S. ROUTE 101 | N BR LAGUNA DE SANTA RSA | 04-SON-101-15.52 | Concrete Culvert (3 spans) | -- | 1957 | -- | 9.8 | 33.1 | Fair | 85.0 | 20 0174 |
| NBI report | U.S. ROUTE 101 | COLGAN CREEK | 04-SON-101-18.88 | Concrete Culvert (2 spans) | -- | 1957 | -- | 9.8 | 22.0 | Fair | 69.5 | 20 0196 |
| NBI report | FERN WAY | HUBERT CREEK | AT OLD CAZADERO RD | Concrete Slab (3 spans) | -- | 1958 | -- | 29.9 | 62.3 | Fair | 77.9 | 20C0352 |
| NBI report | KING RIDGE RD | AUSTIN CREEK | 0.5 MI N FORT ROSS RD | Prestressed Stringer/Multi-beam or girder | -- | 1958 | -- | 60.0 | 65.0 | Good | 87.0 | 20C0432 |
| NBI report | LONE PINE RD | BLUCHER CREEK | 0.3 MI W OF S.H. 116 | Concrete Slab (3 spans) | -- | 1958 | -- | 24.0 | 63.0 | Good | 93.0 | 20C0285 |
| NBI report | MARKET ST | DUTCH BILL CREEK | JUST S BOHEMIAN HWY | Concrete Culvert (2 spans) | -- | 1958 | -- | 13.1 | 26.9 | Good | 92.5 | 20C0372 |
| NBI report | RIVER RD | MARK WEST CREEK | 11.2 MI INTX WITH SR 116 | Concrete Tee beam (3 spans) | -- | 1958 | -- | 84.0 | 233.9 | Poor | 65.6 | 20C0157 |
| NBI report | SALMON CREEK ROAD | SALMON CREEK | 0.1 MI NW BODEGA HWY | Concrete Slab (3 spans) | -- | 1958 | -- | 29.9 | 78.1 | Fair | 64.7 | 20C0320 |
| NBI report | GREEN VALLEY RD | GREEN VALLEY CREEK | 1.3 MI W SH 116 | Concrete Slab (3 spans) | -- | 1958 | 1968 | 32.2 | 80.1 | Poor | 62.5 | 20C0382 |
| NBI report | ARMSTRONG WOODS RD | REDWOOD CREEK | JUST N/O SWTWTR SPNGS RD | Concrete Slab | -- | 1959 | -- | 24.9 | 25.9 | Good | 89.8 | 20C0364 |
| NBI report | AUSTIN CR RD | AUSTIN CREEK | JUST S CAZADERO HWY | Concrete Tee beam (3 spans) | -- | 1959 | -- | 65.0 | 165.0 | Fair | 83.0 | 20C0042 |
| NBI report | CHANNEL DRIVE | SANTA ROSA CRK DIV CHAN | 0.1 MI S OF MONTGOMERY DR | Concrete Tee beam (4 spans) | -- | 1959 | -- | 39.0 | 153.9 | Fair | 71.1 | 20C0485 |
| NBI report | ELY RD | WILLOW BROOK | 0.1 MI SE OLD RDWD HWY N | Concrete Slab (3 spans) | -- | 1959 | -- | 27.9 | 72.5 | Good | 89.1 | 20C0038 |
| NBI report | KINLEY DR | WEST SLOUGH | 600' SW OF RTE 101 | Concrete Tee beam (3 spans) | -- | 1959 | -- | 53.2 | 116.1 | Fair | 83.1 | 20C0051 |
| NBI report | CALISTOGA ROAD | AUSTIN CREEK | N INTRX WITH S.R. 12 | Concrete Culvert (2 spans) | -- | 1960 | -- | 13.1 | 25.9 | Fair | 85.0 | 20C0176 |
| NBI report | COFFEY LANE | PINER CREEK | 0.1 MILES S/O PINER ROAD | Concrete Culvert (2 spans) | -- | 1960 | -- | 12.1 | 24.9 | Good | 89.7 | 20C0181 |
| NBI report | COFFEY LN | PAULINE CREEK | COFFEY LN | Concrete Culvert (2 spans) | -- | 1960 | -- | 11.2 | 22.0 | Good | 88.7 | 20C0183 |
| NBI report | E COTATI AVE | FLOOD CONTROL DITCH | 0.1 MI NE OLD REDWOOD HWY | Concrete Culvert (2 spans) | -- | 1960 | -- | 9.8 | 22.0 | Poor | 61.6 | 20C0204 |
| NBI report | GEYSERS RD | GIRD CREEK | 0.4 MI N OF SR 128 | Concrete Culvert | -- | 1960 | -- | 20.7 | 22.0 | Poor | 62.1 | 20C0228 |
| NBI report | GROVE RD | CARRIGER CREEK | 1.7 MI W JCT ARNOLD RD | Concrete Culvert | -- | 1960 | -- | 24.3 | 26.9 | Fair | 69.5 | 20C0456 |
| NBI report | HAHMAN DR | SPRING CREEK | 0.1 M SOUTH SPRING CREEK | Concrete Culvert (2 spans) | -- | 1960 | -- | 11.2 | 23.0 | Good | 96.2 | 20C0194 |
| NBI report | KINLEY DR | WEST NORTON SLOUGH | 35.7 MI N MARIN CO LINE | Concrete Culvert (2 spans) | -- | 1960 | -- | 18.0 | 37.1 | Fair | 96.9 | 20C0080 |
| NBI report | MANOR LANE | ADOBE CREEK | 0.77 MI N ADOBE RD | Concrete Slab | -- | 1960 | -- | 32.2 | 32.2 | Good | 71.7 | 20C0307 |
| NBI report | MARLOW RD | PAULINE CREEK | MARLOW RD | Concrete Culvert (2 spans) | -- | 1960 | -- | 13.1 | 25.9 | Fair | 88.6 | 20C0185 |
| NBI report | MARLOW ROAD | PINER CREEK | MARLOW ROAD | Concrete Culvert (2 spans) | -- | 1960 | -- | 12.1 | 28.9 | Good | 73.6 | 20C0182 |
| NBI report | MILL CREEK RD | MILL CREEK | 5.6 MI W WESTSIDE RD | Concrete Slab (3 spans) | -- | 1960 | -- | 34.1 | 87.9 | Fair | 73.1 | 20C0344 |
| NBI report | MISSION BLVD | AUSTIN CREEK | 0.5 M NORTH OF HWY 12 | Concrete Slab (2 spans) | -- | 1960 | -- | 26.9 | 59.1 | Fair | 84.0 | 20C0175 |
| NBI report | MOSCOW ROAD | HILLSIDE | 1.85 MI NE OF SR 116 | Steel Stringer/Multi-beam or girder (5 spans) | -- | 1960 | -- | 20.0 | 99.1 | Fair | 64.3 | 20C0389 |
| NBI report | OLD MONTE RIO ROAD | HILLSIDE | 0.3 MI SW CHERRY ROAD | Steel Stringer/Multi-beam or girder (8 spans) | -- | 1960 | -- | 18.0 | 127.0 | Fair | 73.1 | 20C0399 |
| NBI report | PIERSON ST | SANTA ROSA CREEK | 0.2 MI N/O WEST 3RD ST | Concrete Slab (3 spans) | -- | 1960 | -- | 35.1 | 101.1 | Good | 97.0 | 20C0420 |
| NBI report | PINER ROAD | PINER CREEK | IN SANTA ROSA | Concrete Slab (3 spans) | -- | 1960 | -- | 17.1 | 45.9 | Fair | 76.7 | 20C0180 |
| NBI report | PORTER CREEK ROAD | PORTER CREEK | 24.3 MI BEGING RTE 786 | Concrete Culvert (2 spans) | -- | 1960 | -- | 21.7 | 44.0 | Fair | 92.7 | 20C0119 |
| NBI report | RAINSVILLE ROAD | WILLOW BRK (PETALUMA RV) | 0.1 MI SW STONY POINT RD | Concrete Slab (3 spans) | -- | 1960 | -- | 27.9 | 78.1 | Poor | 75.8 | 20C0300 |
| NBI report | RINCONADA DR | DUCKER CREEK | 0.3 M SOUTH OF MONTECITO | Concrete Culvert (2 spans) | -- | 1960 | -- | 12.1 | 24.9 | Fair | 89.2 | 20C0174 |
| NBI report | RIVER RD | MARK WEST CR, TRENTON RD | 4.8 MI WEST OF SR 101 | Concrete Tee beam (10 spans) | -- | 1960 | -- | 51.8 | 498.1 | Poor | 81.1 | 20C0064 |
| NBI report | ROUTE 101 NB | HEALDSBURG AV-S101 ON-RP | 04-SON-101-34.55-HLBG | Concrete Tee beam (3 spans) | -- | 1960 | -- | 54.1 | 124.0 | Good | 78.5 | 20 0085R |
| NBI report | ROUTE 101 SB | HEALDSBURG AV-S101 ON-RP | 04-SON-101-34.55-HLBG | Concrete Tee beam (3 spans) | -- | 1960 | -- | 54.1 | 124.0 | Good | 75.5 | 20 0085L |
| NBI report | SEAVEY RD | NO NAME CREEK | 0.4 MI W SPRING HILL RD | Concrete Culvert (2 spans) | -- | 1960 | -- | 11.8 | 24.9 | Good | 79.8 | 20C0292 |
| NBI report | SKILLMAN LANE | WILSON CREEK | EAST OF THOMPSON LANE | Concrete Culvert (2 spans) | -- | 1960 | -- | 10.5 | 22.0 | Good | 86.9 | 20C0298 |
| NBI report | SNYDER LANE | COPELAND CREEK | 0.5 MI N E. COTATI AVE | Concrete Culvert (3 spans) | -- | 1960 | -- | 15.4 | 49.9 | Poor | 48.2 | 20C0199 |
| NBI report | STATE ROUTE 1 | POCOLIMI CREEK | 04-SON-001-0.33 | Concrete Culvert (2 spans) | -- | 1960 | -- | 9.8 | 22.0 | Good | 91.1 | 20 0186 |
| NBI report | STEELE LANE | PAULINE CREEK | STEELE LANE | Concrete Culvert (2 spans) | -- | 1960 | -- | 16.1 | 33.1 | Good | 85.2 | 20C0184 |
| NBI report | U.S. HIGHWAY 101 | WESTSIDE RD | 04-SON-101-34.88 | Concrete Box beam or girders - Multiple (3 spans) | -- | 1960 | -- | 91.9 | 182.1 | Good | 76.8 | 20 0147 |
| NBI report | U.S. HIGHWAY 101 | WEST SLOUGH | 04-SON-101-34.65-HLBG | Concrete Culvert (2 spans) | -- | 1960 | -- | 9.8 | 20.0 | Poor | 43.0 | 20 0213 |
| NBI report | US HIGHWAY 101 | DRY CREEK ROAD | 04-SON-101-36.27 | Concrete Box beam or girders - Multiple (3 spans) | -- | 1960 | -- | 86.9 | 176.8 | Good | 90.0 | 20 0144 |
| NBI report | US HIGHWAY 101 NB | CHIQUITA ROAD | 04-SON-101-36.95 | Concrete Tee beam (3 spans) | -- | 1960 | -- | 62.0 | 140.1 | Good | 82.1 | 20 0146R |
| NBI report | US HIGHWAY 101 SB | CHIQUITA ROAD | 04-SON-101-36.95 | Concrete Tee beam (3 spans) | -- | 1960 | -- | 62.0 | 140.1 | Fair | 81.1 | 20 0146L |
| NBI report | WARM SPRINGS RD | SONOMA CREEK | 9.85 MI N OF SR 116 | Prestressed Tee beam (3 spans) | -- | 1960 | -- | 49.9 | 101.1 | Good | 93.7 | 20C0216 |
| NBI report | WATMAUGH ROAD | RODGERS CREEK | 0.3 MI W ARNOLD | Concrete Culvert (2 spans) | -- | 1960 | -- | 13.1 | 27.9 | Fair | 88.5 | 20C0256 |
| NBI report | WESTSIDE RD | NORTON SLOUGH | W OF SR 101 AT HEALDSBRG | Concrete Slab (3 spans) | -- | 1960 | -- | 32.2 | 82.0 | Fair | 83.3 | 20C0061 |
| NBI report | FULTON ROAD | SANTA ROSA CREEK | 1/4 MI S COLLEGE AVE | Prestressed Tee beam | -- | 1960 | 1985 | 57.1 | 109.9 | Good | 86.3 | 20C0100 |
| NBI report | STONY POINT RD | LAGUNA DE SANTA ROSA | 0.65 MI N OF LOWELL AVE | Concrete Slab (9 spans) | -- | 1960 | 1994 | 25.9 | 236.2 | Fair | 94.7 | 20C0274 |
| NBI report | MOSCOW ROAD | HILLSIDE | 1.85 MI NE OF SR 116 | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1960 | 2006 | 18.0 | 56.1 | Fair | 70.8 | 20C0390 |
| NBI report | MONTE VISTA TER | HILLSIDE | IN MONTE RIO | Steel Stringer/Multi-beam or girder (6 spans) | -- | 1960 | 2010 | 19.4 | 110.9 | Fair | 66.0 | 20C0403 |
| NBI report | OLD MONTE RIO ROAD | HILLSIDE | At Santa Rosa Avenue | Steel Stringer/Multi-beam or girder (4 spans) | -- | 1960 | 2010 | 19.4 | 75.8 | Fair | 83.0 | 20C0397 |
| NBI report | SCOUTS CAMP RD | SALMON CREEK | 0.23 MI S BOHEMIAN HWY | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1960 | 2016 | 18.4 | 55.4 | Poor | 23.0 | 20C0384 |
| NBI report | SUMMERHOME PARK RD | HILLSIDE | 0.95 MI SW RIVER RD | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1960 | 2017 | 18.0 | 56.1 | Fair | 58.8 | 20C0378 |
| NBI report | MILL CREEK RD | MILL CREEK | 5.5 MI W OF WESTSIDE RD | Concrete Slab (3 spans) | -- | 1961 | -- | 24.0 | 63.0 | Fair | 71.7 | 20C0345 |
| NBI report | MILL CREEK RD | MILL CREEK | 5.4 MI W OF WESTSIDE RD | Concrete Slab (3 spans) | -- | 1961 | -- | 27.9 | 74.2 | Poor | 26.0 | 20C0346 |
| NBI report | MILL CREEK RD | MILL CREEK | 4.5 MI W OF WESTSIDE RD | Concrete Tee beam | -- | 1961 | -- | 69.9 | 71.9 | Good | 84.5 | 20C0347 |
| NBI report | RAILROAD AVE | DOWDALL CREEK | 0.3 MI S/O VERANO | Concrete Culvert (2 spans) | -- | 1961 | -- | 13.5 | 27.9 | Fair | 78.4 | 20C0261 |
| NBI report | SOUTH ELY ROAD | SOUTH ELY CREEK | 0.8 MI SE FRATES RD | Concrete Culvert (2 spans) | -- | 1961 | -- | 11.5 | 24.0 | Fair | 89.5 | 20C0304 |
| NBI report | STONY POINT RD | WILLOW BROOK CREEK | 0.5 MI N INTX PETLMA BL | Concrete Slab (3 spans) | -- | 1961 | -- | 28.2 | 72.2 | Fair | 85.2 | 20C0118 |
| NBI report | WESTSIDE ROAD | FOREMAN LANE | OVER FORMAN LANE | Concrete Slab (3 spans) | -- | 1961 | -- | 40.0 | 112.9 | Fair | 78.4 | 20C0070 |
| NBI report | WESTSIDE ROAD | MILL CREEK | 0.2 MI N FOREMAN LANE | Concrete Tee beam (3 spans) | -- | 1961 | -- | 45.9 | 115.2 | Fair | 75.2 | 20C0071 |
| NBI report | YULUPA AVE | MATANZAS CREEK | 0.2 M SOUTH CREEKSIDE RD | Concrete Tee beam (3 spans) | -- | 1961 | -- | 41.0 | 102.0 | Good | 90.0 | 20C0195 |
| NBI report | BODEGA HWY | SALMON CREEK | 0.9 MI FROM SR 1 | Concrete Slab (3 spans) | -- | 1962 | -- | 29.9 | 91.9 | Good | 99.2 | 20C0078 |
| NBI report | BRIDGEWOOD DR | RINCON CREEK | 0.1 MI N MTCTO BL SNTA R | Concrete Slab (2 spans) | -- | 1962 | -- | 25.9 | 57.1 | Good | 68.7 | 20C0462 |
| NBI report | DRY CREEK RD | FOSS CREEK | 1/4 MILE EAST OF SR 101 | Concrete Culvert (2 spans) | -- | 1962 | -- | 10.2 | 22.0 | Good | 86.7 | 20C0177 |
| NBI report | FERGUSON RD | JONIVE CREEK | 0.15 MI N BODEGA HWY | Concrete Slab (3 spans) | -- | 1962 | -- | 29.9 | 77.1 | Good | 96.8 | 20C0316 |
| NBI report | FULTON ROAD | U.S. HIGHWAY 101 | 04-SON-101-25.90 | Concrete Box beam or girders - Multiple (4 spans) | -- | 1962 | -- | 109.9 | 328.1 | Good | 84.4 | 20 0200 |
| NBI report | INDUSTRIAL DR | U.S. HIGHWAY 101 | 04-SON-101-22.81-SRO | Concrete Box beam or girders - Multiple (4 spans) | -- | 1962 | -- | 90.9 | 278.9 | Good | 87.9 | 20 0179 |
| NBI report | LIMERICK LANE | U.S. ROUTE 101 | 04-SON-101-32.79 | Concrete Box beam or girders - Multiple (2 spans) | -- | 1962 | -- | 89.9 | 186.0 | Fair | 90.3 | 20 0066 |
| NBI report | LLANO RD | LAGUNA DE SANTA ROSA | 0.5 MI N OF ST HWY 116 | Concrete Slab (6 spans) | -- | 1962 | -- | 32.2 | 179.1 | Fair | 93.8 | 20C0233 |
| NBI report | MONTECITO BLVD | BRUSH CREEK | IN SANTA ROSA | Concrete Slab (2 spans) | -- | 1962 | -- | 27.9 | 59.1 | Good | 94.7 | 20C0192 |
| NBI report | RIVER ROAD | U.S. HIGHWAY 101 | 04-SON-101-24.86 | Concrete Box beam or girders - Multiple (4 spans) | -- | 1962 | -- | 102.0 | 304.1 | Fair | 80.0 | 20 0199 |
| NBI report | RIVER ROAD | GILL CREEK | 2.0 MI NW OF SR 128 | Concrete Slab | -- | 1962 | -- | 40.0 | 43.0 | Poor | 45.0 | 20C0406 |
| NBI report | SHILOH ROAD | U.S. HIGHWAY 101 | 04-SON-101-27.62 | Concrete Box beam or girders - Multiple (4 spans) | -- | 1962 | -- | 84.0 | 248.0 | Poor | 83.3 | 20 0202 |
| NBI report | STATE ROUTE 116 | AUSTIN CREEK | 04-SON-116-4.93 | Concrete Box beam or girders - Multiple (4 spans) | -- | 1962 | -- | 118.1 | 379.9 | Good | 68.9 | 20 0012 |
| NBI report | STATE ROUTE 12 | BRUSH CREEK | 04-SON-012-18.37-SRO | Concrete Tee beam (3 spans) | -- | 1962 | -- | 36.1 | 96.1 | Poor | 88.1 | 20 0029 |
| NBI report | STONY POINT RD | COLGAN CR FLD CNTRL CHAN | 0.1 MI N/O TODD RD | Concrete Culvert (2 spans) | -- | 1962 | -- | 12.5 | 25.9 | Good | 73.2 | 20C0283 |
| NBI report | U.S. ROUTE 101 NB | ARATA LANE | 04-SON-101-30.67 | Concrete Tee beam (3 spans) | -- | 1962 | -- | 65.9 | 140.1 | Good | 68.6 | 20 0061R |
| NBI report | U.S. ROUTE 101 NB | NWP RR/NCRRA | 04-SON-101-33.22 | Prestressed Stringer/Multi-beam or girder (3 spans) | -- | 1962 | -- | 74.2 | 229.0 | Good | 80.0 | 20 0088R |
| NBI report | U.S. ROUTE 101 NB | WINDSOR LANE | 04-SON-101-29.35 | Concrete Box beam or girders - Multiple (4 spans) | -- | 1962 | -- | 84.0 | 304.1 | Good | 94.0 | 20 0184R |
| NBI report | U.S. ROUTE 101 SB | ARATA LANE | 04-SON-101-30.67 | Concrete Tee beam (3 spans) | -- | 1962 | -- | 65.9 | 140.1 | Fair | 73.5 | 20 0061L |
| NBI report | U.S. ROUTE 101 SB | NWP RR/NCRRA | 04-SON-101-33.22 | Prestressed Stringer/Multi-beam or girder (3 spans) | -- | 1962 | -- | 76.1 | 234.9 | Good | 72.2 | 20 0088L |
| NBI report | U.S. ROUTE 101 SB | WINDSOR LANE | 04-SON-101-29.35 | Concrete Box beam or girders - Multiple (4 spans) | -- | 1962 | -- | 86.0 | 314.0 | Fair | 83.0 | 20 0184L |
| NBI report | US HIGHWAY 101 NB | HEALDSBURG AVENUE | 04-SON-101-33.48 | Prestressed Stringer/Multi-beam or girder (2 spans) | -- | 1962 | -- | 76.1 | 246.1 | Fair | 80.1 | 20 0067R |
| NBI report | US HIGHWAY 101 SB | HEALDSBURG AVENUE | 04-SON-101-33.48 | Prestressed Stringer/Multi-beam or girder (2 spans) | -- | 1962 | -- | 76.1 | 246.1 | Good | 80.0 | 20 0067L |
| NBI report | WEST OLIVE ST | SANTA ROSA CREEK | WEST OLIVE ST | Concrete Tee beam (3 spans) | -- | 1962 | -- | 55.8 | 169.0 | Good | 89.1 | 20C0054 |
| NBI report | HEMBREE LANE | POOL CREEK | 0.4 MI N SHILO RD | Concrete Slab (3 spans) | -- | 1962 | 1994 | 25.9 | 66.9 | Good | 95.1 | 20C0053 |
| NBI report | U.S. ROUTE 101 | WINDSOR CREEK | 04-SON-101-29.50 | Concrete Culvert | -- | 1962 | 1997 | 29.9 | 35.1 | Poor | 43.0 | 20 0185 |
| NBI report | U.S. ROUTE 101 | PRUITT CREEK | 04-SON-101-27.39 | Concrete Slab (3 spans) | -- | 1962 | 2009 | 25.9 | 67.9 | Fair | 86.8 | 20 0181 |
| NBI report | U.S. ROUTE 101 NB | POOL CREEK | 04-SON-101-27.97 | Concrete Slab (3 spans) | -- | 1962 | 2009 | 25.9 | 66.9 | Good | 92.2 | 20 0182 |
| NBI report | U.S. ROUTE 101 | MARK WEST CREEK | 04-SON-101-26.10 | Concrete Slab (5 spans) | -- | 1962 | 2013 | 32.2 | 146.0 | Good | 92.2 | 20 0180 |
| NBI report | CLEVELAND AVE | PAULINE CREEK | 0.3 MI N GUERNEVILLE RD | Concrete Culvert (2 spans) | -- | 1963 | -- | 11.5 | 24.0 | Fair | 81.5 | 20C0164 |
| NBI report | DRY CREEK RD | CANYON CREEK | INTERSECTION CANYON RD | Concrete Culvert (2 spans) | -- | 1963 | -- | 9.8 | 22.0 | Fair | 87.2 | 20C0153 |
| NBI report | MILLBRAE AVE | N BR LAGUNA DE SANTA RSA | W OF LANGNER | Concrete Slab (5 spans) | -- | 1963 | -- | 26.9 | 123.0 | Good | 94.7 | 20C0277 |
| NBI report | MONTGOMERY RD | JONIVE CREEK | 0.1 MI N BODEGA HWY | Concrete Slab (3 spans) | -- | 1963 | -- | 24.0 | 62.0 | Good | 87.9 | 20C0317 |
| NBI report | PEDESTRIAN WALKWAY | U.S. HIGHWAY 101 & RAMPS | 04-SON-101-19.54-SRO | Prestressed Tee beam | -- | 1963 | -- | 71.9 | -- | -- | -- | 20 0218 |
| NBI report | SANTA ROSA AVENUE | COLGAN CREEK | SOUTH OF COLGAN AVENUE | Concrete Culvert | -- | 1963 | -- | 20.0 | 20.0 | Good | 68.5 | 20C0569 |
| NBI report | WHISTLER AVE | N BR LAGUNA DE SANTA RSA | 0.3 MI N WILFRED AVE | Concrete Slab (4 spans) | -- | 1963 | -- | 32.2 | 113.9 | Good | 97.0 | 20C0276 |
| NBI report | WILD OAK DRIVE | OAKMONT CREEK | SW OF OAKMONT DRIVE | Prestressed Tee beam | -- | 1963 | -- | 27.2 | 28.2 | Good | 94.9 | 20C0559 |
| NBI report | WILFRED AVE | BELVIEW-WILFRED CREEK | 0.2 MI E PRIMROSE AVE | Concrete Slab (6 spans) | -- | 1963 | -- | 27.9 | 157.2 | Poor | 65.6 | 20C0275 |
| NBI report | APACHE STREET | PAULIN CREEK | 0.1 MI N OF STEELE LANE | Steel Culvert (2 spans) | -- | 1964 | -- | 12.1 | 25.3 | Good | 87.3 | 20C0556 |
| NBI report | AUSTIN CREEK RD | NO NAME CREEK | AT BERKLEY CAMP | Steel Stringer/Multi-beam or girder | -- | 1964 | -- | 49.9 | 53.2 | Poor | 37.7 | 20C0423 |
| NBI report | DUTTON MEADOW | COLGAN CR FLD CNTRL CHNL | NEAR BELLEVUE AVE. | Concrete Slab (2 spans) | -- | 1964 | -- | 24.0 | 49.9 | Good | 96.9 | 20C0281 |
| NBI report | E12-N101 CONNECTOR | SR 12 & US 101 | 04-SON-012-R15.99-SRO | Concrete Box beam or girders - Multiple (8 spans) | -- | 1964 | -- | 127.0 | 825.2 | Fair | 94.6 | 20 0207G |
| NBI report | EB STATE ROUTE 12 | SANTA ROSA AVE | 04-SON-012-R16.26-SRO | Concrete Box beam or girders - Multiple (3 spans) | -- | 1964 | -- | 87.9 | 155.8 | Good | 71.0 | 20 0209R |
| NBI report | MILL STATION RD | ATASCADERO CREEK | 0.25 MI E FERGUSON RD | Concrete Slab (4 spans) | -- | 1964 | -- | 29.9 | 122.1 | Fair | 83.7 | 20C0314 |
| NBI report | MILL STATION RD | ATASCADERO CR OVERFLOW | 0.2 MI E FERGUSON RD | Concrete Slab (4 spans) | -- | 1964 | -- | 26.6 | 95.1 | Fair | 83.7 | 20C0315 |
| NBI report | ROBLAR RD | AMERICANO CREEK | 0.7 MI E JCT VALY FORD RD | Concrete Culvert (2 spans) | -- | 1964 | -- | 12.1 | 26.9 | Good | 91.8 | 20C0452 |
| NBI report | S101-W12 CONNECTOR | OLIVE STREET | 04-SON-101-19.82-SRO | Concrete Box beam or girders - Multiple (3 spans) | -- | 1964 | -- | 65.9 | 150.9 | Good | 91.6 | 20 0205F |
| NBI report | SEXTON ROAD | JONIVE CREEK | 0.05 MI S BODEGA HWY | Concrete Slab (3 spans) | -- | 1964 | -- | 24.0 | 62.0 | Poor | 31.2 | 20C0319 |
| NBI report | SR 12 EB | S101-E12 CONNECTOR RAMP | 04-SON-012-R15.90-SRO | Concrete Tee beam (3 spans) | -- | 1964 | -- | 62.0 | 144.0 | Fair | 87.6 | 20 0206R |
| NBI report | SR 12 EB | US 101 & CONNECTOR RAMPS | 04-SON-012-R16.01-SRO | Prestressed Stringer/Multi-beam or girder (4 spans) | -- | 1964 | -- | 83.0 | 311.0 | Fair | 90.7 | 20 0208R |
| NBI report | SR 12 WB | S101-E12 CONNECTOR RAMP | 04-SON-012-R15.90-SRO | Concrete Tee beam (3 spans) | -- | 1964 | -- | 46.9 | 113.9 | Fair | 82.9 | 20 0206L |
| NBI report | SR 12 WB | US 101 & CONNECTOR RAMPS | 04-SON-012-R16.01-SRO | Prestressed Stringer/Multi-beam or girder (4 spans) | -- | 1964 | -- | 81.0 | 311.0 | Fair | 89.6 | 20 0208L |
| NBI report | STATE ROUTE 12 | DUTTON AVE | 04-SON-012-R15.30 | Concrete Box beam or girders - Multiple (3 spans) | -- | 1964 | -- | 87.9 | 148.0 | Fair | 95.3 | 20 0203L |
| NBI report | STATE ROUTE 12 | DUTTON AVE | 04-SON-012-R15.30 | Concrete Box beam or girders - Multiple (3 spans) | -- | 1964 | -- | 87.9 | 148.0 | Fair | 94.2 | 20 0203R |
| NBI report | STATE ROUTE 12 | OLIVE STREET | 04-SON-012-R15.70-SRO | Concrete Box beam or girders - Multiple (3 spans) | -- | 1964 | -- | 66.9 | 147.0 | Good | 86.7 | 20 0205L |
| NBI report | STATE ROUTE 12 | OLIVE STREET | 04-SON-012-R15.70-SRO | Concrete Box beam or girders - Multiple (3 spans) | -- | 1964 | -- | 66.9 | 147.0 | Good | 82.9 | 20 0205R |
| NBI report | STATE ROUTE 12 WB | NWP RR | 04-SON-012-R15.56-SRO | Prestressed Stringer/Multi-beam or girder (2 spans) | -- | 1964 | -- | 89.9 | 219.2 | Good | 79.0 | 20 0204L |
| NBI report | US 101 NB | THERESA DRIVE | 04-SON-101-R49.05 | Concrete Tee beam (3 spans) | -- | 1964 | -- | 67.9 | 124.0 | Good | 80.8 | 20 0100R |
| NBI report | US 101 SB | THERESA DRIVE | 04-SON-101-R49.05 | Concrete Tee beam (3 spans) | -- | 1964 | -- | 67.9 | 124.0 | Fair | 79.8 | 20 0100L |
| NBI report | US HIGHWAY 101 NB | ZANZI LN | 04-SON-101-R46.00 | Concrete Tee beam (3 spans) | -- | 1964 | -- | 54.1 | 128.0 | Fair | 81.8 | 20 0222R |
| NBI report | US HIGHWAY 101 SB | ASTI STORE RD | 04-SON-101-R47.85 | Concrete Tee beam (3 spans) | -- | 1964 | -- | 61.0 | 145.0 | Fair | 79.2 | 20 0165L |
| NBI report | US HIGHWAY 101 SB | ASTI STORE RD | 04-SON-101-R47.85 | Concrete Tee beam (3 spans) | -- | 1964 | -- | 61.0 | 165.0 | Fair | 79.4 | 20 0165R |
| NBI report | US HIGHWAY 101 SB | ZANZI LN | 04-SON-101-R46.00 | Concrete Tee beam (3 spans) | -- | 1964 | -- | 54.1 | 128.0 | Good | 80.8 | 20 0222L |
| NBI report | WB STATE ROUTE 12 | SANTA ROSA AVE | 04-SON-012-R16.26-SRO | Concrete Box beam or girders - Multiple (3 spans) | -- | 1964 | -- | 87.9 | 155.8 | Good | 71.0 | 20 0209L |
| NBI report | BELLEVUE AVE | COLGAN CR FLD CNTRL CHNL | 0.3 MI E STONY POINT RD | Concrete Slab (3 spans) | -- | 1964 | 1994 | 32.2 | 83.0 | Good | 97.9 | 20C0282 |
| NBI report | STATE ROUTE 12 EB | NWP RR | 04-SON-012-R15.56-SRO | Prestressed Stringer/Multi-beam or girder (2 spans) | -- | 1964 | 2008 | 80.1 | 232.0 | Fair | 96.4 | 20 0204R |
| NBI report | E12-N&S101 CONNCTR | OLIVE STREET | 04-SON-012-R15.70-SRO | Concrete Box beam or girders - Multiple (3 spans) | -- | 1964 | 2009 | 67.9 | 155.2 | Fair | 97.8 | 20 0205G |
| NBI report | ADOBE CANYON ROAD | HILLSIDE | 1.1 MI NW/O SR 12 | Concrete Slab | -- | 1965 | -- | 3.3 | 108.3 | Fair | 53.3 | 20C0404 |
| NBI report | CHALK HILL RD | FRANZ CREEK | 3 MI SOUTH SR 128 | Concrete Slab (4 spans) | -- | 1965 | -- | 44.0 | 155.8 | Good | 95.5 | 20C0329 |
| NBI report | CHANATE ROAD | PAULIN CREEK | NEAR MENDOCINO AVENUE | Concrete Culvert (2 spans) | -- | 1965 | -- | 10.8 | 22.0 | Good | 71.3 | 20C0557 |
| NBI report | HYDE ROAD | ARROYO SECO | 0.4 MI S JCT NAPA RD | Concrete Culvert (2 spans) | -- | 1965 | -- | 12.1 | 25.9 | Fair | 89.4 | 20C0458 |
| NBI report | KING RIDGE RD | BIG AUSTIN CREEK | 2.3 MI N FORT ROSS RD | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1965 | -- | 49.9 | 124.0 | Fair | 76.9 | 20C0433 |
| NBI report | MAC ARTHUR STREET | NATHANSON CREEK | AT AUSTIN | Concrete Slab | -- | 1965 | -- | 26.9 | 28.2 | Poor | 56.7 | 20C0422 |
| NBI report | SNYDER LN | BRANCH OF FIVE CREEK | 1.1 MI N ROHNERT PARK EXP | Concrete Culvert (2 spans) | -- | 1965 | -- | 12.5 | 25.9 | Good | 73.9 | 20C0197 |
| NBI report | SNYDER LN | CRANE CRK (SNYDER) | 0.7 MI N ROHNERT PARK EXP | Concrete Culvert (2 spans) | -- | 1965 | -- | 12.5 | 25.9 | Fair | 88.9 | 20C0198 |
| NBI report | WILLOWSIDE RD | SANTA ROSA FL CON CHAN | 1 MI S OF GUERNEVILLE RD | Concrete Slab (6 spans) | -- | 1965 | -- | 29.9 | 182.1 | Fair | 81.4 | 20C0245 |
| NBI report | BETHARDS DRIVE | MATANZAS CREEK | BET TECHEVAH & YULUPA AV | Steel Culvert | -- | 1966 | -- | 21.0 | 21.0 | Good | 88.0 | 20C0484 |
| NBI report | COMMERCE BLVD | COPELAND CREEK | 0.4 MI S RNPK EXPRESSWAY | Concrete Slab (2 spans) | -- | 1966 | -- | 29.9 | 60.0 | Good | 84.6 | 20C0203 |
| NBI report | MILL CREEK RD | MILL CREEK | 1.9 MI W OF WESTSIDE RD | Concrete Slab (3 spans) | -- | 1966 | -- | 25.9 | 68.9 | Fair | 77.7 | 20C0349 |
| NBI report | MOSCOW RD | RUSSIAN RIVER | AT JUNCTION WITH SR 116 | Concrete Box beam or girders - Multiple (5 spans) | -- | 1966 | -- | 120.1 | 816.0 | Poor | 84.2 | 20C0016 |
| NBI report | WILLOW CREEK ROAD | WILLOW CREEK | 0.5 MI E/O SR 1 | Concrete Slab (4 spans) | -- | 1966 | -- | 32.2 | 113.9 | Fair | 86.5 | 20C0096 |
| NBI report | ARNOLD DR | FELDER CREEK | 1.5 MI N OF SR 116 | Concrete Culvert (2 spans) | -- | 1967 | -- | 12.1 | 25.9 | Fair | 85.7 | 20C0211 |
| NBI report | CALISTOGA RD | MARK WEST CREEK | 4.2 MI N INTERSECTN SR 12 | Concrete Slab (4 spans) | -- | 1967 | -- | 41.0 | 146.7 | Fair | 78.2 | 20C0122 |
| NBI report | GRATON RD | ATASCADERO CREEK | 0.9 MI W SH 116 | Concrete Slab (2 spans) | -- | 1967 | -- | 40.0 | 82.0 | Fair | 96.2 | 20C0136 |
| NBI report | GREEN VALLEY RD | ATASCADERO CREEK | 0.6 MI W OF SR 116 | Concrete Slab (2 spans) | -- | 1967 | -- | 40.0 | 82.0 | Fair | 82.3 | 20C0381 |
| NBI report | WALKER RD | GOSSAGE CREEK | AT VALLEY FORD ROAD | Concrete Culvert (2 spans) | -- | 1967 | -- | 10.8 | 22.0 | Good | 90.4 | 20C0290 |
| NBI report | WINDSOR ROAD | POOL CREEK | 0.2 MI N OF SHILOH RD | Concrete Slab (3 spans) | -- | 1967 | -- | 34.1 | 86.9 | Good | 95.6 | 20C0337 |
| NBI report | 8TH ST EAST | SCHELL CREEK | 0.25 MILE NORTH OF RT 12 | Concrete Slab (3 spans) | -- | 1968 | -- | 39.0 | 98.1 | Fair | 96.0 | 20C0253 |
| NBI report | BODEGA HWY | SALMON CREEK | AT VALLEY FORD-FREESTN RD | Concrete Slab (3 spans) | -- | 1968 | -- | 29.9 | 76.1 | Fair | 67.3 | 20C0133 |
| NBI report | DRY CRK CANYON RD | DUTCHER CREEK | INTRX DUTCHER CREEK RD | Concrete Culvert (2 spans) | -- | 1968 | -- | 12.1 | 26.9 | Fair | 69.5 | 20C0152 |
| NBI report | LICHAU RD | COPELAND CREEK | 1.0 MI E PRESSLEY ROAD | Concrete Slab | -- | 1968 | -- | 43.0 | 45.6 | Fair | 36.4 | 20C0265 |
| NBI report | MAYS CANYON RD | POCKET CANYON CREEK | JUST W OF S.R. 116 | Concrete Slab | -- | 1968 | -- | 30.8 | 33.1 | Good | 95.8 | 20C0375 |
| NBI report | PEPPER RD | STEMPLE CREEK | 1.2 MI N OF BODEGA AVE | Concrete Slab (3 spans) | -- | 1968 | -- | 36.1 | 91.9 | Fair | 85.9 | 20C0289 |
| NBI report | PRESSLEY RD | COPELAND CREEK | 0.1 MI N LICHAU RD | Steel Stringer/Multi-beam or girder | -- | 1968 | -- | 57.1 | 61.0 | Poor | 43.7 | 20C0266 |
| NBI report | STATE ROUTE 12 | MATANZAS CREEK | 04-SON-012-T17.77-SRO | Concrete Tee beam | -- | 1968 | -- | 36.1 | 39.0 | Fair | 85.1 | 20 0236 |
| NBI report | SWEETWTR SPRNGS RD | PORTER CREEK | 6.6 MI W ARMSTRONG RD | Concrete Slab | -- | 1968 | -- | 27.9 | 29.9 | Fair | 55.7 | 20C0367 |
| NBI report | SWEETWTR SPRNGS RD | PORTER CREEK | 3.5 MI W OF WESTSIDE RD | Concrete Slab (2 spans) | -- | 1968 | -- | 18.4 | 39.0 | Poor | 19.3 | 20C0368 |
| NBI report | SWEETWTR SPRNGS RD | PORTER CREEK | 7.7 MI W ARMSTRONG RD | Concrete Slab (2 spans) | -- | 1968 | -- | 19.0 | 39.0 | Good | 55.9 | 20C0369 |
| NBI report | TACHEVAH DR | DRAINAGE CANAL | 0.1 M WEST NEUTOMAS AVE | Prestressed Tee beam | -- | 1968 | -- | 27.9 | 28.9 | Good | 85.6 | 20C0196 |
| NBI report | W SODA ROCK LANE | HILLSIDE | 1 MI SE ALEXANDER VALY RD | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1968 | -- | 19.0 | 59.1 | Fair | 80.9 | 20C0415 |
| NBI report | U.S. HIGHWAY 101 | HINEBAUGH CREEK | 04-SON-101-14.02-RNPK | Concrete Culvert (4 spans) | -- | 1968 | 1970 | 11.2 | 47.9 | Good | 69.0 | 20 0082 |
| NBI report | MONTE VISTA TER | HILLSIDE | IN MONTE RIO | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1968 | 2009 | 19.4 | 58.1 | Fair | 66.0 | 20C0400 |
| NBI report | U.S. ROUTE 101 | NINTH STREET | 04-SON-101-20.48-SRO | Concrete Box beam or girders - Multiple (3 spans) | -- | 1968 | 2009 | 90.9 | 150.9 | Good | 83.4 | 20 0134 |
| NBI report | US HIGHWAY 101 | 3RD ST, 4TH ST, & 5TH ST | 04-SON-101-20.09-SRO | Concrete Box beam or girders - Multiple (10 spans) | -- | 1968 | 2009 | 89.9 | 757.9 | Good | 98.0 | 20 0112 |
| NBI report | JAMISON RD | MATANZAS CREEK | 0.4 MI E SONOMA MTN RD | Steel Stringer/Multi-beam or girder | -- | 1969 | -- | 57.1 | 61.0 | Poor | 40.6 | 20C0263 |
| NBI report | LEVERONI RD | SONOMA CREEK | 0.65 MI W JCT WITH SR 12 | Concrete Box beam or girders - Multiple (3 spans) | -- | 1969 | -- | 90.9 | 232.3 | Good | 92.1 | 20C0171 |
| NBI report | PETALUMA HILL RD | COPELAND CREEK | 5.2 MI INTER STONY PNT RD | Concrete Slab | -- | 1969 | -- | 25.3 | 26.2 | Good | 78.9 | 20C0127 |
| NBI report | STATE ROUTE 12 | BRIGHAM AVE | 04-SON-012-R17.10-SRO | Prestressed Box beam or girders - Multiple | -- | 1969 | -- | 113.9 | 116.1 | Fair | 96.6 | 20 0217L |
| NBI report | STATE ROUTE 12 | BRIGHAM AVE | 04-SON-012-R17.10-SRO | Prestressed Box beam or girders - Multiple | -- | 1969 | -- | 113.9 | 116.1 | Fair | 95.6 | 20 0217R |
| NBI report | BENNETT VALLEY RD | YULUPA CREEK | 0.6 MI W WARM SPRINGS RD | Concrete Slab | -- | 1970 | -- | 28.9 | 33.1 | Fair | 64.2 | 20C0219 |
| NBI report | CASA GRANDE AVE | ADOBE CREEK | 0.25 MI S ADOBE RD | Concrete Culvert (2 spans) | -- | 1970 | -- | 14.4 | 29.9 | Good | 87.9 | 20C0306 |
| NBI report | COMMERCE BLVD | HINEBAUGH CREEK | 0.1 MI N RNPK EXPRESSWAY | Concrete Culvert (4 spans) | -- | 1970 | -- | 11.8 | 47.9 | Good | 89.4 | 20C0202 |
| NBI report | E RAILROAD AVE | LICHAU CREEK | 0.1 MI E PETALUMA HILL RD | Concrete Culvert (2 spans) | -- | 1970 | -- | 20.0 | 42.0 | Good | 89.4 | 20C0310 |
| NBI report | FITCH MOUNTAIN RD | HILLSIDE | 1.6 MI E JCT HEALDSBG AVE | Steel Stringer/Multi-beam or girder (5 spans) | -- | 1970 | -- | 20.3 | 100.1 | Fair | 63.5 | 20C0417 |
| NBI report | GRATON RD | PURRINGTON CREEK | 0.1 MI N/E GREENHILL RD | Steel Stringer/Multi-beam or girder | -- | 1970 | -- | 88.6 | 91.9 | Fair | 85.7 | 20C0137 |
| NBI report | LLANO ROAD | ROSELAND CR FLD CNTL CHN | 2.4 MI N JCT WITH SR 116 | Concrete Culvert (2 spans) | -- | 1970 | -- | 12.1 | 25.9 | Good | 88.6 | 20C0453 |
| NBI report | MADISON STREET | WASHINGTON CREEK | NORTH OF HOLLY LANE | Concrete Culvert (3 spans) | -- | 1970 | -- | 9.8 | 29.5 | Fair | 97.0 | 20C0564 |
| NBI report | MECHAM RD | STEMPLE CREEK | S OF 9TH ST | Concrete Culvert (2 spans) | -- | 1970 | -- | 13.1 | 26.9 | Good | 88.9 | 20C0287 |
| NBI report | MIDDLE RINCON RD | AUSTIN CREEK | 0.25 MI N OF SH 12 | Concrete Culvert (2 spans) | -- | 1970 | -- | 11.2 | 22.0 | Fair | 90.3 | 20C0161 |
| NBI report | MORELLI LANE | NORTH FORK LANCEL CREEK | 0.65 MI N BOHEMIAN HWY | Steel Stringer/Multi-beam or girder | -- | 1970 | -- | 22.0 | 24.0 | Fair | 67.9 | 20C0373 |
| NBI report | PEPPER RD | STEMPLE CREEK | 4 MI W OF SR 101 | Concrete Culvert (2 spans) | -- | 1970 | -- | 10.8 | 23.0 | Fair | 90.0 | 20C0288 |
| NBI report | RAILROAD AVENUE | NO NAME CREEK | AT VAN NESS | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1970 | -- | 19.0 | 57.1 | Fair | 66.1 | 20C0371 |
| NBI report | RAMAL ROAD | RAMAL CREEK | 3.45 MI S OF SH 121 | Concrete Slab | -- | 1970 | -- | 26.9 | 27.9 | Good | 96.6 | 20C0259 |
| NBI report | REDWOOD ROAD | HINEBAUGH CREEK | 0.3 MI N RONNERT PK EXPWY | Concrete Culvert (4 spans) | -- | 1970 | -- | 14.1 | 65.0 | Fair | 89.9 | 20C0466 |
| NBI report | RIVER RD | GREEN VALLEY CREEK | 6.5 MI INTX WITH SR 116 | Concrete Box beam or girders - Multiple (5 spans) | -- | 1970 | -- | 80.1 | 337.0 | Good | 87.1 | 20C0156 |
| NBI report | SAN LUIS ROAD | SCHELL CREEK | JUST EAST OF SR 12 | Steel Stringer/Multi-beam or girder | -- | 1970 | -- | 29.9 | 32.2 | Fair | 61.3 | 20C0254 |
| NBI report | SWEETWATER SPRG RD | BRANCH REDWOOD CREEK | 1.2 MI NE ARMSTRNG WOOD R | Concrete Culvert (2 spans) | -- | 1970 | -- | 18.0 | 38.1 | Fair | 89.4 | 20C0365 |
| NBI report | TODD RD | COLGAN CREEK FLOOD CONT | 0.1 MI W/O STONY PT. RD. | Concrete Slab (2 spans) | -- | 1970 | -- | 29.9 | 62.0 | Fair | 83.5 | 20C0201 |
| NBI report | TOMALES RD | STEMPLE CREEK | 0.9 MI E COUNTY LINE | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1970 | -- | 24.0 | 60.0 | Fair | 83.2 | 20C0116 |
| NBI report | VALLEY FORD RD | BLOOMFIELD CREEK | 0.2 MI W BLOOMFIELD RD | Concrete Slab | -- | 1970 | -- | 31.2 | 33.1 | Good | 95.8 | 20C0294 |
| NBI report | WASHINGTON ST | PETALUMA RIVER | NEAR DOWNTOWN PETALUMA | Prestressed Stringer/Multi-beam or girder (2 spans) | -- | 1970 | -- | 50.9 | 105.0 | Good | 96.0 | 20C0045 |
| NBI report | WATSON RD | FIFE CREEK | 0.15 MI W ARMSTRNG WDS RD | Concrete Slab | -- | 1970 | -- | 24.9 | 26.9 | Good | 91.1 | 20C0363 |
| NBI report | FULTON STREET | PINER CREEK | 0.3 MI S GUERNEVILLE RD | Concrete Slab (3 spans) | -- | 1970 | 1990 | 29.9 | 89.9 | Good | 87.6 | 20C0179 |
| NBI report | CASA GRANDE AVE | ADOBE CREEK | 0.4 MI N ELY RD | Concrete Culvert (3 spans) | -- | 1970 | 1991 | 15.1 | 44.9 | Good | 87.9 | 20C0305 |
| NBI report Bridgehunter | STWRT PT-SKGG SPRG | HILLSIDE | 9.7 MI E/O SR 1 | Steel Stringer/Multi-beam or girder (5 spans) | -- | 1970 | 2010 | 19.4 | 95.1 | Fair | 81.9 | 20C0143 |
| NBI report | BOHAN DILLON RD | SOUTH FORK GUALALA RIVER | 0.8 MI N FORT ROSS RD | Steel Stringer/Multi-beam or girder | -- | 1971 | -- | 34.1 | 36.1 | Fair | 57.6 | 20C0436 |
| NBI report | BOHEMIAN HWY | SALMON CREEK | 0.2 MI W BODEGA HWY | Concrete Slab (2 spans) | -- | 1971 | -- | 34.1 | 69.9 | Good | 95.5 | 20C0208 |
| NBI report | FREEZEOUT ROAD | FREEZEOUT CREEK | 0.3 MI S MOSCOW RD | Steel Stringer/Multi-beam or girder | -- | 1971 | -- | 60.0 | 60.0 | Poor | 44.1 | 20C0391 |
| NBI report | FULTON RD | MARK WEST CREEK | 0.2 MI N OF US HWY 101 | Concrete Box beam or girders - Multiple (3 spans) | -- | 1971 | -- | 62.0 | 158.1 | Fair | 82.6 | 20C0341 |
| NBI report | KENILWORTH AVE | SONOMA CREEK | 0.1 MI W MERWIN AVE | Concrete Slab (3 spans) | -- | 1971 | -- | 38.1 | 97.1 | Fair | 62.6 | 20C0269 |
| NBI report | NIESTRATH RD | SOUTH FORK GUALALA RIVER | JUST N FORT ROSS RD | Steel Stringer/Multi-beam or girder (2 spans) | -- | 1971 | -- | 29.5 | 60.0 | Fair | 64.3 | 20C0437 |
| NBI report | OCCIDENTAL RD | ATASCADERO CREEK | 1.12 MI W S.R. 116 | Concrete Slab (8 spans) | -- | 1971 | -- | 27.9 | 211.0 | Fair | 80.5 | 20C0380 |
| NBI report | PEDESTRIAN WALKWAY | U.S. ROUTE 101 | 04-SON-101-4.55-PET | Concrete Box beam or girders - Multiple | -- | 1971 | -- | 10.5 | -- | -- | -- | 20 0247 |
| NBI report | RIVER RD | HILLSIDE | 0.1 MI E/O CANYON 7 RD. | Concrete Tee beam (21 spans) | -- | 1971 | -- | 27.2 | 570.9 | Good | 88.1 | 20C0102 |
| NBI report | RIVER RD | HILLSIDE | 0.3 MI E/O CANYON 7 RD. | Concrete Tee beam (8 spans) | -- | 1971 | -- | 27.2 | 219.2 | Good | 88.1 | 20C0103 |
| NBI report | STATE ROUTE 121 | SONOMA CREEK | 04-SON-121-R7.30 | Concrete Box beam or girders - Multiple (3 spans) | -- | 1971 | -- | 100.1 | 231.0 | Good | 88.1 | 20 0022 |
| NBI report | STONY POINT RD | SANTA ROSA CREEK | .5 MI S/O W COLLEGE AVE | Concrete Slab (3 spans) | -- | 1971 | 1985 | 44.0 | 111.9 | Good | 70.4 | 20C0188 |
| NBI report | GERICKE RD | AMERICANO CREEK | 0.2 MI S VALLEY FORD RD | Concrete Slab (3 spans) | -- | 1972 | -- | 42.0 | 107.0 | Fair | 96.9 | 20C0295 |
| NBI report | GILMORE AVENUE | GOSSAGE CREEK | 0.1 MI N/O DERBY LANE | Concrete Slab | -- | 1972 | -- | 20.0 | 22.0 | Fair | 77.5 | 20C0272 |
| NBI report | HOEN AVENUE | MATANZAS CREEK | 0.1 M WEST OF CYPRESS WY | Concrete Tee beam (3 spans) | -- | 1972 | -- | 44.9 | 95.1 | Good | 92.8 | 20C0073 |
| NBI report | LESLIE RD | PORTER CREEK | .7M NW MARK WEST SPRGS RD | Steel Stringer/Multi-beam or girder (2 spans) | -- | 1972 | -- | 18.4 | 35.4 | Poor | 40.7 | 20C0325 |
| NBI report | LEVERONI RD | CARRIGER CREEK | 1.05 MI W OF SR 12 | Concrete Slab (3 spans) | -- | 1972 | -- | 32.2 | 83.0 | Fair | 92.7 | 20C0209 |
| NBI report | LEVERONI RD | FELDER CREEK | 1.45 MI W OF SR 12 | Concrete Culvert (2 spans) | -- | 1972 | -- | 12.1 | 24.9 | Good | 79.6 | 20C0210 |
| NBI report | LOWELL AVE | GOSSAGE CREEK | 0.06 MI E GILMORE AVE | Concrete Slab | -- | 1972 | -- | 21.0 | 32.2 | Good | 90.0 | 20C0273 |
| NBI report | MARTINELLI RD | GREEN VALLEY CREEK | 0.35 MI N SH 116 | Concrete Tee beam (4 spans) | -- | 1972 | -- | 51.5 | 184.1 | Fair | 85.2 | 20C0374 |
| NBI report | STATE ROUTE 116 | ELLIS CREEK | 04-SON-116-37.49 | Concrete Slab (3 spans) | -- | 1972 | -- | 24.0 | 62.0 | Good | 91.6 | 20 0110 |
| NBI report | COUNTRY CLUB DR | COPELAND CREEK | 0.4 MI S RNPK EXPRSSWY | Concrete Culvert (4 spans) | -- | 1973 | -- | 11.2 | 62.0 | Poor | 68.9 | 20C0464 |
| NBI report | COUNTRY CLUB DRIVE | HINEBAUGH CREEK | 0.1 MI N ROHNERT PK EXPWY | Concrete Culvert (4 spans) | -- | 1973 | -- | 11.2 | 47.9 | Fair | 93.0 | 20C0468L |
| NBI report | COUNTRY CLUB DRIVE | HINEBAUGH CREEK | 0.1 MI N ROHNERT PK EXPWY | Concrete Culvert (4 spans) | -- | 1973 | -- | 11.2 | 47.9 | Fair | 93.0 | 20C0468R |
| NBI report | FITZPATRICK LANE | FAY CREEK | 0.9 MI N SALMON CREEK RD | Steel Stringer/Multi-beam or girder (4 spans) | -- | 1973 | -- | 22.0 | 75.1 | Fair | 48.8 | 20C0311 |
| NBI report | KING RIDGE RD | WARD CREEK | 0.2 MI N FORT ROSS RD | Steel Stringer/Multi-beam or girder (4 spans) | -- | 1973 | -- | 40.0 | 110.9 | Fair | 60.9 | 20C0431 |
| NBI report | KING RIDGE RD | BEARPEN CREEK | 4.1 MI N FORT ROSS RD | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1973 | -- | 24.9 | 64.0 | Fair | 78.4 | 20C0434 |
| NBI report | N DUTTON AVE | SANTA ROSA CREEK | DUTTON AVE | Concrete Slab (5 spans) | -- | 1973 | -- | 34.1 | 172.9 | Good | 94.4 | 20C0187 |
| NBI report | SALMON CREEK RD | COLEMAN VALLEY CREEK | 1.3 MI W FITZPATRICK RD | Steel Stringer/Multi-beam or girder (2 spans) | -- | 1973 | -- | 19.4 | 41.0 | Fair | 57.6 | 20C0322 |
| NBI report | STARRETT HILL DR | HILLSIDE | 0.2 MI E INTX MOSCOW RD | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1973 | -- | 19.7 | 58.1 | Fair | 68.2 | 20C0396 |
| NBI report | TODD RD | LAGUNA DE SANTA ROSA | 0.6 MI N JCT W/SR 116 | Concrete Slab (5 spans) | -- | 1973 | -- | 29.9 | 151.9 | Fair | 96.3 | 20C0200 |
| NBI report | ROHNERT PARK EXPWY | U.S. HIGHWAY 101 & RAMPS | 04-SON-101-13.88-RNPK | Prestressed Box beam or girders - Multiple (2 spans) | -- | 1973 | 1999 | 140.1 | 282.2 | Good | 71.8 | 20 0235 |
| NBI report | ANAPOLIS RD | SOUTH FORK GUALALA RIVER | 1.5 MI E/O SR 1 | Concrete Box beam or girders - Multiple (3 spans) | -- | 1974 | -- | 170.0 | 461.0 | Fair | 86.3 | 20C0014 |
| NBI report | ANAPOLIS RD | WHEATFIELD FK GUALALA RI | 1.7 MI E/O SR 1 | Concrete Box beam or girders - Multiple (4 spans) | -- | 1974 | -- | 160.1 | 576.1 | Fair | 86.3 | 20C0015 |
| NBI report | ARNOLD DR | CARRIGER CREEK | 2.4 MI N OF SR 116 | Concrete Slab (3 spans) | -- | 1974 | -- | 40.0 | 100.1 | Fair | 77.2 | 20C0212 |
| NBI report | CAULFIELD LANE | U.S. HIGHWAY 101 | 04-SON-101-3.98-PET | Prestressed Box beam or girders - Multiple (2 spans) | -- | 1974 | -- | 123.0 | 246.1 | Good | 61.0 | 20 0245 |
| NBI report | CAZADERO HWY | KIDD CREEK | N OF INTERSECT SR 26 | Concrete Slab (2 spans) | -- | 1974 | -- | 29.9 | 60.0 | Good | 94.1 | 20C0426 |
| NBI report | FIR ROAD | DUTCH BILL CREEK | MONTE RIO | Steel Stringer/Multi-beam or girder (5 spans) | -- | 1974 | -- | 19.0 | 98.1 | Poor | 60.8 | 20C0393 |
| NBI report | GEYSERS ROAD | CAMACHO CREEK | 24 MI N OF SR 128 | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1974 | -- | 59.4 | 89.9 | Poor | 55.8 | 20C0229 |
| NBI report | PINE FLAT RD | SAUSAL CREEK | 0.63 MI NE OF SR 128 | Concrete Slab (3 spans) | -- | 1974 | -- | 40.0 | 102.0 | Fair | 91.1 | 20C0413 |
| NBI report | RIVER BLVD | MADRONE MILL CREEK | 0.3 MI N BOHEMIAN HWY | Steel Stringer/Multi-beam or girder | -- | 1974 | -- | 58.1 | 62.0 | Poor | 51.8 | 20C0392 |
| NBI report | SR 12 | SANTA ROSA CREEK | 04-SON-012-21.45 | Concrete Tee beam | -- | 1974 | -- | 65.9 | 67.9 | Good | 78.0 | 20 0028 |
| NBI report | SWTWATER SPRING RD | PORTER CREEK | 6.1 MI W ARMSTRONG RD | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1974 | -- | 14.4 | 40.0 | Fair | 66.7 | 20C0366 |
| NBI report | US HIGHWAY 101 NB | LYTTON SPRINGS ROAD | 04-SON-101-R38.56 | Prestressed Box beam or girders - Multiple | -- | 1974 | -- | 161.1 | 163.1 | Good | 98.0 | 20 0233R |
| NBI report | US HIGHWAY 101 NB | SOUVERAIN RD | 04-SON-101-R40.03 | Prestressed Box beam or girders - Multiple | -- | 1974 | -- | 112.9 | 115.2 | Good | 97.3 | 20 0234R |
| NBI report | US HIGHWAY 101 SB | LYTTON SPRINGS ROAD | 04-SON-101-R38.56 | Prestressed Box beam or girders - Multiple | -- | 1974 | -- | 161.1 | 163.1 | Poor | 71.0 | 20 0233L |
| NBI report | US HIGHWAY 101 SB | SOUVERAIN RD | 04-SON-101-R40.03 | Prestressed Box beam or girders - Multiple | -- | 1974 | -- | 112.9 | 115.2 | Good | 97.3 | 20 0234L |
| NBI report | WALLACE CREEK RD | WALLACE CREEK | 0.5 MI W MILL CREEK RD | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1974 | -- | 20.0 | 51.8 | Fair | 61.1 | 20C0350 |
| NBI report | E WASHINGTON ST | U.S. ROUTE 101 | 04-SON-101-4.76-PET | Prestressed Box beam or girders - Multiple (2 spans) | -- | 1975 | -- | 124.0 | 250.0 | Good | 90.0 | 20 0246 |
| NBI report | FELTA RD | FELTA CREEK | 0.3 MI W OF WESTSIDE RD | Steel Stringer/Multi-beam or girder | -- | 1975 | -- | 27.9 | 28.9 | Fair | 80.5 | 20C0351 |
| NBI report | GRAPE VINES | MARK WEST SPRINGS ROAD | 4.9 MI NE INTX OLD RD HY | Steel Stringer/Multi-beam or girder | -- | 1975 | -- | 18.0 | -- | -- | -- | 20C0110 |
| NBI report | MAIN STREET | DUTCH BILL CREEK | MAIN STREET AT TYRONE | Concrete Slab (3 spans) | -- | 1975 | -- | 44.0 | 112.5 | Good | 96.8 | 20C0159 |
| NBI report | US 101 NB | ST RTE 128 (CANYON RD) | 04-SON-101-R43.36 | Prestressed Box beam or girders - Multiple | -- | 1975 | -- | 142.7 | 145.0 | Good | 95.0 | 20 0244R |
| NBI report | US 101 SB | ST RTE 128 (CANYON RD) | 04-SON-101-R43.36 | Prestressed Box beam or girders - Multiple | -- | 1975 | -- | 148.0 | 149.9 | Good | 95.0 | 20 0244L |
| NBI report | US HIGHWAY 101 NB | GEYSERVILLE AVENUE | 04-SON-101-R40.77 | Prestressed Box beam or girders - Multiple | -- | 1975 | -- | 147.0 | 150.9 | Good | 95.7 | 20 0242R |
| NBI report | US HIGHWAY 101 NB | GEYSERVILLE AVE | 04-SON-101-R41.43 | Prestressed Box beam or girders - Multiple | -- | 1975 | -- | 136.2 | 138.1 | Good | 95.0 | 20 0243R |
| NBI report | US HIGHWAY 101 SB | GEYSERVILLE AVENUE | 04-SON-101-R40.78 | Prestressed Box beam or girders - Multiple | -- | 1975 | -- | 148.0 | 150.9 | Good | 95.7 | 20 0242L |
| NBI report | US HIGHWAY 101 SB | GEYSERVILLE AVE | 04-SON-101-R41.43 | Prestressed Box beam or girders - Multiple | -- | 1975 | -- | 136.2 | 138.1 | Good | 98.0 | 20 0243L |
| NBI report | WATERTROUGH RD | ATASCADERO CREEK | 0.55 MI N SANDERS RD | Concrete Slab (3 spans) | -- | 1975 | -- | 29.9 | 77.8 | Good | 95.5 | 20C0313 |
| NBI report | WILLOW CREEK ROAD | WILLOW CREEK | 2.4 MI E/O RTE 1 | Steel Stringer/Multi-beam or girder | -- | 1975 | -- | 59.1 | 61.0 | Good | 91.7 | 20C0388 |
| NBI report | ANNAPOLIS ROAD | LITTLE FULLER CREEK | 9.5 MI E/O SR 1 | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1976 | -- | 58.1 | 118.1 | Fair | 89.5 | 20C0140 |
| NBI report | MARK W SPRING RD | MARK WEST CREEK | 15.5 MI N/E INTX RDWD HY | Concrete Slab (4 spans) | -- | 1976 | -- | 44.0 | 158.1 | Good | 95.8 | 20C0111 |
| NBI report | MARK WEST STA RD | WINDSOR CREEK | 1.2 MI E OF TRE-HEALDS RD | Concrete Slab | -- | 1976 | -- | 36.1 | 38.1 | Good | 77.3 | 20C0247 |
| NBI report | SARTORI DR | ADOBE CREEK | 0.2 MI SE CASA GRANDE AVE | Concrete Slab (2 spans) | -- | 1976 | -- | 24.9 | 54.1 | Good | 97.9 | 20C0003 |
| NBI report | ST HELENA ROAD | MARK WEST CREEK | 1.1 MI E CALISTOGA RD | Steel Stringer/Multi-beam or girder | -- | 1976 | -- | 60.0 | 103.0 | Fair | 60.7 | 20C0268 |
| NBI report | STATE ROUTE 116 | RUSSIAN RIVER | 04-SON-116-R5.73 | Concrete Slab (31 spans) | -- | 1976 | -- | 29.9 | 917.0 | Good | 61.0 | 20 0256 |
| NBI report | STATE ROUTE 128 | ROCKAWAY CREEK | 04-SON-128-6.44 | Concrete Slab (4 spans) | -- | 1976 | -- | 32.2 | 117.1 | Fair | 81.1 | 20 0039 |
| NBI report | VALDES COURT | PINER CREEK | NW OF VALDES DRIVE | Concrete Culvert (2 spans) | -- | 1976 | -- | 10.8 | 22.0 | Good | 97.0 | 20C0565 |
| NBI report | CORONA RD | PETALUMA RIVER | N OF PETALUMA BLVD | Concrete Slab (5 spans) | -- | 1977 | -- | 29.9 | 137.8 | Fair | 97.7 | 20C0299 |
| NBI report | FAIRWAY DRIVE | COLEMAN CREEK | 0.2 MI S HOLLY | Concrete Culvert (2 spans) | -- | 1977 | -- | 9.8 | 22.0 | Fair | 97.9 | 20C0469 |
| NBI report | FRANZ VALLEY ROAD | FRANZ CREEK | 2 MILES SW OF SR 128 | Steel Stringer/Multi-beam or girder (2 spans) | -- | 1977 | -- | 40.0 | 80.1 | Fair | 69.6 | 20C0327 |
| NBI report | STATE ROUTE 128 | BIDWELL CREEK | 04-SON-128-24.01 | Concrete Slab (3 spans) | -- | 1977 | -- | 29.9 | 70.9 | Fair | 81.2 | 20 0044 |
| NBI report Bridgehunter | VACATION BEACH RD | RUSSIAN RIV SUMMER XING | JUST NE OF SR 116 | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1977 | -- | 20.0 | 60.0 | Fair | 58.8 | 20C0354 |
| NBI report Bridgehunter | ODD FELLOWS PARK R | RUSSIAN RIV SUMMER XING | REMOVED AT HIGH WATER | Steel Stringer/Multi-beam or girder (9 spans) | -- | 1977 | 2009 | 30.2 | 239.8 | Fair | 65.8 | 20C0358 |
| NBI report Bridgehunter | ROCKPILE ROAD | WARM SPRINGS CREEK | 3.5 MI JCT DUTCHER CRK RD | Steel Truss - Deck (3 spans) | -- | 1978 | -- | 752.0 | 1788.1 | Good | 77.9 | 20C0438 |
| NBI report | SKAGGS SPRINGS RD | WARM SPRINGS CREEK | 10.9 MI W JCT RCKPLE RD | Prestressed Box beam or girders - Multiple (3 spans) | -- | 1978 | -- | 233.9 | 604.0 | Fair | 88.2 | 20C0439 |
| NBI report | STONE BRIDGE ROAD | MEADOW CREEK | 0.6 MI W OF OAKMONT DR | Concrete Culvert (2 spans) | -- | 1978 | -- | 12.1 | 25.6 | Good | 94.9 | 20C0558 |
| NBI report | STWRT PT-SKGG SPRG | WOLF CREEK CULVERT WEST | 1.7 MI E/O HOUSE CREEK | Steel Arch - Deck | -- | 1978 | -- | 25.6 | 25.6 | Good | 92.2 | 20C0147 |
| NBI report | STWRT PT-SKGG SPRG | WOLF CREEK CULVERT EAST | 2.3 MI E/O HOUSE CREEK | Steel Arch - Deck | -- | 1978 | -- | 25.6 | 25.6 | Good | 92.2 | 20C0148 |
| NBI report | WILLOW CREEK RD | WILLOW CREEK | 1.5 MI E SH 1 | Concrete Slab (4 spans) | -- | 1978 | -- | 32.2 | 115.2 | Good | 96.6 | 20C0387 |
| NBI report | ALDERBROOK DR | SANTA ROSA CREEK | NEAR 4TH STREET | Concrete Slab (3 spans) | -- | 1979 | -- | 40.0 | 102.0 | Good | 91.9 | 20C0189 |
| NBI report | BICENTENNIAL WAY | U.S. HIGHWAY 101 | 04-SON-101-22.52-SRO | Prestressed Box beam or girders - Multiple (4 spans) | -- | 1979 | -- | 144.0 | 459.3 | Good | 93.0 | 20 0257 |
| NBI report | BROOKWOOD ROAD | SANTA ROSA CREEK | 0.6 MI N OF RTE 12 | Concrete Slab (4 spans) | -- | 1979 | -- | 29.9 | 149.9 | Good | 81.4 | 20C0486 |
| NBI report | HILLVIEW WAY | COLEMAN CREEK | 0.1 MI S HOLLY | Concrete Culvert (2 spans) | -- | 1979 | -- | 9.8 | 22.0 | Fair | 83.7 | 20C0470 |
| NBI report | LABATH AVE | HINEBAUGH CREEK | 0.2 MI N ROHNERT PK EXPWY | Concrete Culvert (4 spans) | -- | 1979 | -- | 11.2 | 47.9 | Poor | 55.1 | 20C0465 |
| NBI report | LLANO RD | COLGAN CREEK | 1.1 MI N OF SH 116 | Concrete Slab (2 spans) | -- | 1979 | -- | 32.2 | 66.6 | Poor | 91.8 | 20C0234 |
| NBI report | MAGNOLIA DR | WEST SLOUGH | NEAR SKIMMER RD | Concrete Slab (4 spans) | -- | 1979 | -- | 32.2 | 113.9 | Good | 98.0 | 20C0250 |
| NBI report | RIVER ROAD | HILLSIDE | 1.6 MI E INTERCTN SR 116 | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1979 | -- | 19.0 | 58.1 | Fair | 66.2 | 20C0463 |
| NBI report | STATE FARM DRIVE | HINEBAUGH CREEK | 0.2 MI N ROHNERT PARK EXP | Concrete Culvert (4 spans) | -- | 1979 | -- | 11.2 | 47.9 | Poor | 69.2 | 20C0467 |
| NBI report | LUDWIG AVE | ROSELAND CR FLD CNTL CHN | 1.6 MI E JCT WTH LLANO RD | Concrete Culvert (2 spans) | -- | 1980 | -- | 12.1 | 25.9 | Fair | 96.4 | 20C0459 |
| NBI report | MIDDLE TERRACE | HILLSIDE | JUST S STARRETT HILL DR | Steel Stringer/Multi-beam or girder (2 spans) | -- | 1980 | -- | 19.0 | 38.1 | Fair | 67.0 | 20C0425 |
| NBI report | OLD MONTE RIO RD | HILLSIDE | 0.1 MI NE SANTA ROSA AVE | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1980 | -- | 20.0 | 53.2 | Fair | 84.0 | 20C0455 |
| NBI report | REDWOOD AVE | HILLSIDE | NEAR CAMP MEEKER | Steel Stringer/Multi-beam or girder | -- | 1980 | -- | 22.6 | 23.0 | Fair | 70.6 | 20C0546 |
| NBI report | OAKMONT DRIVE | GOLF CREEK | OAKMONT AREA OF SANTA RSA | Concrete Slab (3 spans) | -- | 1981 | -- | 18.0 | 56.1 | Good | 98.0 | 20C0461 |
| NBI report | STATE ROUTE 128 | FOOTE CREEK | 04-SON-128-20.72 | Concrete Slab (2 spans) | -- | 1982 | -- | 33.1 | 66.9 | Good | 91.7 | 20 0042 |
| NBI report | GEYSERS RD | LITTLE SULPHUR CREEK | 8.5 MI N OF SH 128 | Concrete Box beam or girders - Multiple (3 spans) | -- | 1983 | -- | 60.0 | 152.9 | Good | 88.2 | 20C0230 |
| NBI report | HIGHLAND TERRACE | HILLSIDE | AT MESA WY | Steel Stringer/Multi-beam or girder (5 spans) | -- | 1983 | -- | 19.0 | 95.1 | Fair | 67.0 | 20C0476 |
| NBI report | MONTE RIO AVE | HILLSIDE | 0.2 MI NE BOHEMIAN AVE | Steel Stringer/Multi-beam or girder (4 spans) | -- | 1983 | -- | 19.0 | 76.1 | Fair | 62.7 | 20C0477 |
| NBI report | MONTECITO BLVD | DUCKER CREEK | S OF BAIRD BLVD | Concrete Culvert | -- | 1983 | -- | 16.1 | 25.3 | Good | 84.9 | 20C0567 |
| NBI report | STATE ROUTE 1 | SALMON CREEK | 04-SON-001-12.49 | Concrete Slab (5 spans) | -- | 1983 | -- | 44.0 | 200.1 | Good | 95.1 | 20 0191 |
| NBI report | STATE ROUTE 128 | GIRD CREEK | 04-SON-128-9.75 | Concrete Culvert (2 spans) | -- | 1983 | -- | 12.1 | 25.9 | Good | 88.3 | 20 0130 |
| NBI report | LAWNDALE ROAD | KERN CREEK | 0.6 MI S SR 12 KENWOOD | Concrete Slab | -- | 1984 | -- | 40.0 | 43.0 | Fair | 87.9 | 20C0480 |
| NBI report | S ELY RD | ADOBE CREEK | 0.1 MI SE CASA GRANDE AVE | Concrete Slab (2 spans) | -- | 1984 | -- | 24.9 | 54.1 | Good | 77.9 | 20C0482 |
| NBI report | SONOMA MTN RD | LYNCH CREEK | 0.35 MI NW ADOBE RD | Prestressed Tee beam | -- | 1984 | -- | 57.7 | 62.0 | Good | 87.7 | 20C0308 |
| NBI report | SR 1 | RUSSIAN RIVER | 04-SON-001-19.72 | Prestressed Box beam or girders - Multiple (6 spans) | -- | 1984 | -- | 165.0 | 910.1 | Good | 92.3 | 20 0195 |
| NBI report | STATE ROUTE 128 | SAUSAL CREEK | 04-SON-128-12.19 | Concrete Slab (3 spans) | -- | 1984 | -- | 35.1 | 107.0 | Fair | 79.8 | 20 0040 |
| NBI report | STWRT PT-SKGG SPRG | SOUTH FORK GUALALA RIVER | 2.5 MI E OF SH 1 | Concrete Box beam or girders - Multiple (3 spans) | -- | 1984 | -- | 109.9 | 272.0 | Good | 99.5 | 20C0221 |
| NBI report | TEMELEC CIRCLE | ROGERS CREEK | 0.7 MI W/O ARNOLD DRIVE | Concrete Slab | -- | 1984 | -- | 27.9 | 27.9 | Good | 98.0 | 20C0568 |
| NBI report | U.S. HIGHWAY 101 | OAT VALLEY CREEK | 04-SON-101-R53.06 | Concrete Culvert (2 spans) | -- | 1984 | -- | 14.1 | 45.9 | Poor | 56.0 | 20 0265 |
| NBI report | BAILHACHE ROAD | HILLSIDE | 2 MI NE OF HEALDSBURG AVE | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1985 | -- | 19.4 | 59.1 | Fair | 74.5 | 20C0525 |
| NBI report | BICENTENNIAL WAY | FOUNTAINGROVE PARKWAY | 0.5 MI E OF RTE 101 | Prestressed Box beam or girders - Multiple (2 spans) | -- | 1985 | -- | 101.1 | 184.1 | Good | 89.7 | 20C0487 |
| NBI report | MOSCOW RD | HILLSIDE | 1/2 MI NW MONTE RIO | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1985 | -- | 20.0 | 60.0 | Fair | 79.8 | 20C0483 |
| NBI report | ROCKPILE ROAD | BOAT LAUNCH UC | 1/2 MI W STWT PT-SK SP RD | Concrete Slab (3 spans) | -- | 1985 | -- | 38.1 | 107.9 | Good | 76.0 | 20C0489 |
| NBI report | SUPERCEDED ALIGNMT | NCRRA (OLD NWP RR) | 04-SON-101-R54.28 | Prestressed Box beam or girders - Multiple (3 spans) | -- | 1985 | -- | 75.1 | 219.2 | Good | 92.9 | 20 0032Y |
| NBI report | VALLEY FORD RD | AMERICANO CREEK | 3.6 MI E JCT SR 1 | Concrete Slab (3 spans) | -- | 1985 | -- | 27.9 | 73.2 | Poor | 66.6 | 20C0115 |
| NBI report | RAINSVILLE RD | WIGGINS CREEK | 0.8 MI W STONY POINT RD | Concrete Slab (3 spans) | -- | 1986 | -- | 25.9 | 67.9 | Fair | 96.1 | 20C0302 |
| NBI report | SLUSSER RD | MARK WEST CREEK | 0.2 MI N OF RIVER RD | Concrete Box beam or girders - Multiple (2 spans) | -- | 1986 | -- | 66.9 | 136.2 | Fair | 85.6 | 20C0007 |
| NBI report | STARRETT HILL DR | HILLSIDE | 0.4 MI E INTX MOSCOW RD | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1986 | -- | 17.7 | 51.2 | Fair | 77.0 | 20C0395 |
| NBI report | A STREET | SANTA ROSA CREEK | BETWN SONOMA AVE FIRST ST | Prestressed Tee beam | -- | 1987 | -- | 100.1 | 102.0 | Fair | 96.5 | 20C0168 |
| NBI report | CALETTI AVE | PRUITT CREEK | 200 FT S OF SHILOH ROAD | Wood Stringer/Multi-beam or girder | -- | 1987 | -- | 66.6 | 67.9 | Good | 67.3 | 20C0576 |
| NBI report | HEALDSBURG AVE | RUSSIAN RIVER OVERFLOW | INT OF BAILACHE AVE | Concrete Slab (5 spans) | -- | 1987 | -- | 29.9 | 138.1 | Fair | 93.8 | 20C0066 |
| NBI report | VIA COLUMBARD | ROGERS CREEK | 0.7 MI W/O ARNOLD DRIVE | Concrete Culvert (2 spans) | -- | 1987 | -- | 9.8 | 27.9 | Good | 98.0 | 20C0571 |
| NBI report | WESTSIDE ROAD | HILLSIDE | 0.3 MI N/O RIVER RD | Steel Stringer/Multi-beam or girder (4 spans) | -- | 1987 | -- | 19.7 | 78.7 | Fair | 80.9 | 20C0548 |
| NBI report | NATALIE DRIVE | WINDSOR CREEK | 200 FT S OF JESSICA DRIVE | Concrete Culvert (2 spans) | -- | 1988 | -- | 12.5 | 24.9 | Good | 97.7 | 20C0577 |
| NBI report | RIVER ROAD | BIG SULPHUR CREEK | NE OF CLOVERDALE | Prestressed Box beam or girders - Multiple (2 spans) | -- | 1988 | -- | 105.0 | 212.9 | Fair | 86.8 | 20C0251 |
| NBI report | STARRETT HILL DR | HILLSIDE | 0.7 MI E INT MOSCOW RD | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1988 | -- | 19.0 | 51.8 | Fair | 66.0 | 20C0394 |
| NBI report | TRENTON HEALDSBRG | MARK WEST CREEK | 0.3 MI N OF RIVER RD | Concrete Slab (4 spans) | -- | 1988 | -- | 49.9 | 180.1 | Poor | 67.1 | 20C0239 |
| NBI report | GAMAY STREET | STEEL CREEK | NORTH OF JENNINGS AVE | Concrete Culvert (2 spans) | -- | 1989 | -- | 10.8 | 22.0 | Fair | 100.0 | 20C0561 |
| NBI report | SR 12 | CALABAZAS CREEK | 04-SON-012-29.41 | Concrete Box beam or girders - Multiple | -- | 1989 | -- | 78.1 | 78.1 | Good | 88.5 | 20 0026 |
| NBI report | THOMAS LK HARIS DR | STONEFIELD ARCH | 0.1 MI N FNTAINGROVE PKWY | Arch - Deck | -- | 1989 | -- | 39.0 | 39.0 | Fair | 82.0 | 20C0500 |
| NBI report | U.S. HIGHWAY 101 | SR 128 (MCCRAY ROAD) | 04-SON-101-R54.21 | Prestressed Box beam or girders - Multiple | -- | 1989 | -- | 175.9 | 175.9 | Poor | 91.0 | 20 0262 |
| NBI report | OCCIDENTAL RD | LAGUNA DE SANTA ROSA | 1 MI EAST OF SR 116 | Concrete Slab (7 spans) | -- | 1990 | -- | 37.1 | 240.2 | Good | 84.9 | 20C0249 |
| NBI report | ROHNERT PARK EXPWY | BELLEVUE WILFRED CREEK | 0.1 MI E STONY PT RD | Concrete Culvert (4 spans) | -- | 1990 | -- | 15.1 | 64.0 | Good | 95.8 | 20C0491 |
| NBI report | ROHNERT PARK EXPWY | HINEBAUGH CREEK | 1/2 MI E STONY POINT RD | Concrete Culvert (4 spans) | -- | 1990 | -- | 15.1 | 64.0 | Fair | 84.7 | 20C0492 |
| NBI report | SANTA ROSA AVE | HILLSIDE | 1/4 MI E OLD MONTE RIO RD | Steel Stringer/Multi-beam or girder (5 spans) | -- | 1990 | -- | 19.0 | 95.1 | Fair | 72.0 | 20C0498 |
| NBI report | SR 12 EB | SOUTH E STREET | 04-SON-012-R16.65-SRO | Prestressed Box beam or girders - Multiple | -- | 1990 | -- | 138.1 | 140.1 | Fair | 98.6 | 20 0266R |
| NBI report | SR 12 WB | SOUTH E STREET | 04-SON-012-R16.65-SRO | Prestressed Box beam or girders - Multiple | -- | 1990 | -- | 138.1 | 140.1 | Fair | 98.6 | 20 0266L |
| NBI report | SR 12 WB | BROOKWOOD AVE | 04-SON-012-R16.80-SRO | Prestressed Box beam or girders - Multiple (8 spans) | -- | 1990 | -- | 127.0 | 982.0 | Fair | 96.6 | 20 0267L |
| NBI report | STATE ROUTE 12 EB | BROOKWOOD AVE | 04-SON-012-R16.80-SRO | Prestressed Box beam or girders - Multiple (8 spans) | -- | 1990 | -- | 127.0 | 982.0 | Fair | 98.6 | 20 0267R |
| NBI report | CROSS CREEK ROAD | MARK WEST CREEK,S BRANCH | BY RIEBLI ROAD | Steel Arch - Deck | -- | 1991 | -- | 25.6 | 29.9 | Good | 79.6 | 20C0553 |
| NBI report | OLD REDWOOD HWY | EAST WINDSOR CREEK | 0.1 MI S.E. OF SH101 | Concrete Arch - Deck | -- | 1991 | -- | 24.0 | 25.9 | Good | 71.3 | 20C0502 |
| NBI report | S CLOVERDALE BLVD | US HIGHWAY 101 | 04-SON-101-R50.43 | Prestressed Box beam or girders - Multiple (2 spans) | -- | 1991 | -- | 107.9 | 207.0 | Good | 84.2 | 20 0248 |
| NBI report | Skaggs Island Road | Hudeman Slough | SAN PABLO BAY NWR | Wood Stringer/Multi-beam or girder (12 spans) | -- | 1991 | -- | 40.0 | 461.0 | Fair | 75.5 | 000081644-TMP02 |
| NBI report | STATE ROUTE 116 | FIFE CREEK | 04-SON-116-11.82 | Prestressed Box beam or girders - Multiple (2 spans) | -- | 1991 | -- | 62.0 | 127.0 | Fair | 92.1 | 20 0089 |
| NBI report | N MCDOWELL BLVD | WILLOW BROOK CREEK | N OF WILLOWBROOK CT | Prestressed Box beam or girders - Multiple | -- | 1992 | -- | 104.0 | 108.3 | Good | 93.0 | 20C0562 |
| NBI report | RIVER ROAD | RUSSIAN RIV SUMMER XING | 0.4 MI E/O ASTI ROAD | Steel Stringer/Multi-beam or girder (2 spans) | -- | 1992 | -- | 27.9 | 60.0 | Fair | 62.9 | 20C0504 |
| NBI report | STATE ROUTE 116 | HULBERT CREEK | 04-SON-116-11.16 | Prestressed Box beam or girders - Multiple (2 spans) | -- | 1992 | -- | 88.9 | 180.1 | Good | 98.2 | 20 0049 |
| NBI report | SUMMERHOME PARK RD | HILLSIDE | 0.4 MI SW RIVER ROAD | Steel Stringer/Multi-beam or girder (4 spans) | -- | 1992 | -- | 19.4 | 74.2 | Fair | 73.3 | 20C0505 |
| NBI report | STONY POINT RD | STATE ROUTE 12 | 04-SON-012-R14.45-SRO | Prestressed Box beam or girders - Multiple (2 spans) | -- | 1993 | -- | 121.7 | 215.6 | Fair | 79.8 | 20 0270 |
| NBI report | BURGESS DRIVE | COLGAN CREEK FLOOD C CHN | NORTH OF BELLEVUE AVENUE | Concrete Arch - Deck | -- | 1994 | -- | 24.9 | 25.9 | Good | 90.0 | 20C0560 |
| NBI report | STONY POINT RD | GOSSAGE CREEK | 0.1 MI N/O SH 116 | Concrete Slab (2 spans) | -- | 1994 | -- | 25.9 | 54.5 | Good | 93.5 | 20C0501 |
| NBI report | US 101 NB | CITRUS FAIR DRIVE | 04-SON-101-R51.62-CLVD | Prestressed Box beam or girders - Multiple | -- | 1994 | -- | 159.1 | 162.1 | Poor | 94.3 | 20 0251R |
| NBI report | US 101 NB | FIRST ST & CLOVERDALE CR | 04-SON-101-R52.06-CLVD | Prestressed Box beam or girders - Multiple (2 spans) | -- | 1994 | -- | 149.0 | 255.9 | Poor | 93.3 | 20 0252R |
| NBI report | US 101 SB | CITRUS FAIR DRIVE | 04-SON-101-R51.62-CLVD | Prestressed Box beam or girders - Multiple | -- | 1994 | -- | 158.1 | 160.1 | Poor | 94.3 | 20 0251L |
| NBI report | US 101 SB | FIRST ST & CLOVERDALE CR | 04-SON-101-R52.06-CLVD | Prestressed Box beam or girders - Multiple (2 spans) | -- | 1994 | -- | 129.9 | 221.1 | Good | 94.1 | 20 0252L |
| NBI report Bridgehunter | CONDE LANE | WINDSOR CREEK | 0.1 KM EAST OF BELL AVE | Concrete Arch - Deck | -- | 1995 | -- | 25.9 | 25.9 | Poor | 69.9 | 20C0506 |
| NBI report Bridgehunter | GREAT HERON DRIVE | SKY HAWK CREEK | INTRSX W/ MTN HAWK WAY | Concrete Arch - Deck | -- | 1995 | -- | 32.8 | 32.8 | Fair | 77.1 | 20C0527 |
| NBI report Bridgehunter | MOUNTAIN HAWK WAY | SKY HAWK CREEK | 0.2 MI N/O SR 12 | Concrete Arch - Deck | -- | 1995 | -- | 36.1 | 36.1 | Good | 96.7 | 20C0526 |
| NBI report | MOUNTAIN HAWK WAY | SKY HAWK CREEK | E OF SAN RAMON WAY | Concrete Arch - Deck | -- | 1995 | -- | 36.1 | 85.3 | Good | 96.8 | 20C0555 |
| NBI report | Old Redwood Hwy | WINDSOR CREEK | 100 yards west of Rte 101 | Prestressed Box beam or girders - Multiple | -- | 1995 | -- | 69.6 | 72.2 | Fair | 95.0 | 20C0507 |
| NBI report | SR 12 | PURPLE DRAW | 04-SON-012-9.84 | Concrete Slab | -- | 1995 | -- | 28.2 | 29.9 | Good | 89.2 | 20 0275 |
| NBI report | Old Monte Rio Road | HILLSIDE | 0.6 MILE S SR 116 | Steel Stringer/Multi-beam or girder (4 spans) | -- | 1996 | -- | 19.7 | 75.5 | Fair | 88.0 | 20C0508 |
| NBI report | STATE ROUTE 121 | TOLAY CREEK | 04-SON-121-1.53 | Concrete Slab (2 spans) | -- | 1996 | -- | 35.4 | 71.2 | Good | 82.9 | 20 0020 |
| NBI report | YULUPA AVENUE | SANTA ROSA CREEK | 0.1 mi N Montgomery Dr. | Concrete Box beam or girders - Multiple (2 spans) | -- | 1996 | -- | 69.9 | 142.1 | Good | 74.2 | 20C0519 |
| NBI report | FOUNTAIN GROVE PKW | CHANATE ROAD | AT CHANATE ROAD | Prestressed Box beam or girders - Multiple | -- | 1997 | -- | 134.8 | 137.8 | Fair | 94.9 | 20C0510L |
| NBI report | FOUNTAIN GROVE PKW | CHANATE ROAD | AT CHANATE ROAD | Prestressed Box Beam or girders - Single or Spread | -- | 1997 | -- | 122.1 | 124.0 | Good | 94.9 | 20C0510R |
| NBI report | GOLF COURSE ROAD | POOL CREEK | 300 FT N OF 19TH HOLE DR | Prestressed Box beam or girders - Multiple | -- | 1997 | -- | 112.9 | 112.9 | Fair | 79.1 | 20C0579 |
| NBI report | HOLLY LANE | WASHINGTON CREEK | W OF MADISON STREET | Prestressed Box beam or girders - Multiple | -- | 1997 | -- | 78.7 | 78.7 | Good | 87.0 | 20C0563 |
| NBI report | PAYRAN ST | PETALUMA RIVER | 0.3 mi E/O Petaluma Bl | Prestressed Stringer/Multi-beam or girder (3 spans) | -- | 1997 | -- | 60.0 | 157.2 | Good | 96.6 | 20C0509 |
| NBI report | SANFORD ROAD | E BR LAGUNA DE SANTA RSA | 0.4 MI N OCCIDENTAL RD | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1997 | -- | 24.9 | 75.5 | Fair | 70.7 | 20C0511 |
| NBI report | WALKER AVENUE | COLGAN CK FLD CNTRL CHAN | 0.7 MI S TODD RD | Concrete Slab (2 spans) | -- | 1997 | -- | 34.1 | 70.5 | Fair | 88.0 | 20C0513 |
| NBI report | GEYSERS ROAD | HILLSIDE | .75 m E of River Rd | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1998 | -- | 20.0 | 61.0 | Fair | 78.3 | 20C0515 |
| NBI report | LAKEVILLE STREET | PETALUMA RIVER | ON LAKEVILLE STREET | Prestressed Slab (2 spans) | -- | 1998 | -- | 52.2 | 107.0 | Good | 96.7 | 20C0514 |
| NBI report | STATE ROUTE 116 | RUSSIAN RIVER | 04-SON-116-R12.19 | Prestressed Box beam or girders - Multiple (4 spans) | -- | 1998 | -- | 230.0 | 805.2 | Good | 93.9 | 20 0254 |
| NBI report | FITCH MOUNTAIN RD | HILLSIDE | 1.3 MI E JCT UNV ST HELDG | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1999 | -- | 25.3 | 75.8 | Fair | 81.3 | 20C0518 |
| NBI report | FORT ROSS RD. | HILLSIDE | 0.65mi W of King Ridge Rd | Steel Stringer/Multi-beam or girder (8 spans) | -- | 1999 | -- | 19.4 | 154.9 | Fair | 65.8 | 20C0521 |
| NBI report | GEYSERS RD | HILLSIDE | 0.1 MI E/O BIG SULPHUR CR | Steel Stringer/Multi-beam or girder (4 spans) | -- | 1999 | -- | 20.0 | 79.7 | Fair | 70.2 | 20C0534 |
| NBI report | OLD REDWOOD HWY | WILLOW BROOK CREEK | 0.5 MI N/O SR101 | Prestressed Box beam or girders - Multiple (3 spans) | -- | 1999 | -- | 63.0 | 165.0 | Fair | 89.6 | 20C0516 |
| NBI report | STATE ROUTE 116 | DRAKE ROAD | 04-SON-116-R12.42 | Concrete Slab (5 spans) | -- | 1999 | -- | 38.1 | 171.9 | Poor | 57.6 | 20 0255 |
| NBI report | US 101 NB | RUSSIAN RIVER | 04-SON-101-33.78-HLBG | Prestressed Box beam or girders - Multiple (4 spans) | -- | 1999 | -- | 218.2 | 773.0 | Good | 95.9 | 20 0273R |
| NBI report | US 101 SB | RUSSIAN RIVER | 04-SON-101-33.78-HLBG | Prestressed Box beam or girders - Multiple (4 spans) | -- | 1999 | -- | 218.2 | 773.0 | Good | 95.9 | 20 0273L |
| NBI report | CLOVERDALE BLVD | CLOVERDALE CREEK | 0.8 mi. N of 1st St | Concrete Slab | -- | 2000 | -- | 42.7 | 42.7 | Fair | 82.0 | 20C0512 |
| NBI report | WILD LILAC LANE | RINCON CREEK | NEAR BRUSH CREEK ROAD | Steel Arch - Deck | -- | 2000 | -- | 34.8 | 37.4 | Good | 80.8 | 20C0528 |
| NBI report | MONTE VISTA TERR | HILLSIDE | IN MONTE RIO | Steel Stringer/Multi-beam or girder (2 spans) | -- | 2001 | -- | 18.0 | 35.4 | Fair | 63.5 | 20C0401 |
| NBI report Bridgehunter | MONTE VISTA TERR | JOHNSON GULCH | IN MONTE RIO | Steel Truss - Thru | -- | 2001 | -- | 69.9 | 72.2 | Good | 70.4 | 20C0524 |
| NBI report | RIVER ROAD | HILLSIDE | E OF CANYON 2 & 7 ROADS | Concrete Slab (3 spans) | -- | 2001 | -- | 37.4 | 111.9 | Good | 96.6 | 20C0529 |
| NBI report | RIVER ROAD | HILLSIDE | E OF CANYON 2 & 7 ROADS | Concrete Slab (4 spans) | -- | 2001 | -- | 41.0 | 164.4 | Good | 96.6 | 20C0530 |
| NBI report | NB101-ROBERTS LAKE | N BR LAGUNA DE SANTA RSA | 04-SON-101-15.52 | Concrete Slab | -- | 2002 | -- | 37.7 | 42.7 | Fair | 84.9 | 20 0274S |
| NBI report | HOEN AV-W12 ON RMP | ST RTE 12 - FARMERS LANE | 04-SON-012-T17.60 | Prestressed Box beam or girders - Multiple | -- | 2003 | -- | 130.6 | 130.6 | Fair | 95.1 | 20 0271 |
| NBI report | RIVER ROAD | HILLSIDE | 1.7 MI WEST OF MIRABEL RD | Steel Stringer/Multi-beam or girder (3 spans) | -- | 2003 | -- | 26.9 | 78.1 | Fair | 52.7 | 20C0536 |
| NBI report | STWRT PT-SKGG SPRG | HILLSIDE | 26.5 MI E OF SR 1 | Steel Stringer/Multi-beam or girder (4 spans) | -- | 2003 | -- | 24.9 | 95.1 | Fair | 84.9 | 20C0531 |
| NBI report | TYRONE ROAD | TYRONE GULCH CREEK | 1.8 MI S/O MONTE RIO | Steel Stringer/Multi-beam or girder | -- | 2004 | -- | 24.6 | 24.9 | Fair | 68.0 | 20C0532 |
| NBI report | CAZADERO HWY | HILLSIDE | 3.2 MI N/O SR 116 | Steel Stringer/Multi-beam or girder (5 spans) | -- | 2005 | -- | 19.4 | 96.8 | Fair | 67.7 | 20C0535 |
| NBI report | GRANGE ROAD | MATANZAS CREEK | .1MI S BENNETT VALLEY RD | Prestressed Box beam or girders - Multiple | -- | 2005 | -- | 146.7 | 149.3 | Good | 94.5 | 20C0533 |
| NBI report Bridgehunter | SWTWATER SPRING RD | PORTER CREEK | 4 MI W/O WESTSIDE RD | Steel Truss - Thru | -- | 2005 | -- | 49.9 | 49.9 | Good | 69.9 | 20C0537 |
| NBI report | WINDSOR ROAD | WINDSOR CREEK | AT VINTAGE GREENS ROAD | Prestressed Slab | -- | 2005 | -- | 69.2 | 69.2 | Good | 95.8 | 20C0540 |
| NBI report | GEYSERS ROAD | HILLSIDE | 1.0 MI E/O BIG SULPHUR CR | Steel Stringer/Multi-beam or girder (3 spans) | -- | 2006 | -- | 20.0 | 60.0 | Fair | 65.1 | 20C0543 |
| NBI report | GEYSERS ROAD | HILLSIDE | 1.1 MI E/O BIG SULPHUR CR | Steel Stringer/Multi-beam or girder (7 spans) | -- | 2006 | -- | 20.0 | 140.1 | Fair | 65.1 | 20C0544 |
| NBI report | NEELEY ROAD | HILLSIDE | 1 MI W SR 116 | Steel Stringer/Multi-beam or girder (6 spans) | -- | 2006 | -- | 20.0 | 120.1 | Fair | 59.7 | 20C0541 |
| NBI report | OLD MONTE RIO RD | HILLSIDE | 0.7 MI E CNOPIUS RD | Steel Stringer/Multi-beam or girder (4 spans) | -- | 2006 | -- | 20.0 | 68.9 | Fair | 78.2 | 20C0539 |
| NBI report | RIVERSIDE DRIVE | SONOMA CREEK | 0.1 MI W/O HWY 12 | Steel Stringer/Multi-beam or girder | -- | 2006 | -- | 167.3 | 167.3 | Fair | 88.9 | 20C0542 |
| NBI report | STATE ROUTE 128 | RUSSIAN RIVER | 04-SON-128-5.44 | Prestressed Tee beam (10 spans) | -- | 2006 | -- | 102.4 | 980.0 | Poor | 88.1 | 20 0288 |
| NBI report | BELL ROAD | EAST WINDSOR CREEK | 400 FT NW OFJOSHUA DR | Concrete Arch - Deck | -- | 2007 | -- | 43.6 | 43.6 | Good | 95.6 | 20C0578 |
| NBI report | RIVER ROAD | HILLSIDE | 1.6 MI E/O SR 116 | Concrete Slab (4 spans) | -- | 2007 | -- | 44.0 | 137.1 | Good | 90.1 | 20C0545 |
| NBI report | ST HELENA ROAD | HILLSIDE | 4.3 MI E/O CALISTOGA RD | Steel Stringer/Multi-beam or girder | -- | 2007 | -- | 28.9 | 29.9 | Fair | 59.2 | 20C0547 |
| NBI report | US HIGHWAY 101 SB | SR 116 & NWP RR & DITCH | 04-SON-101-3.65-PET | Prestressed Box beam or girders - Multiple (5 spans) | -- | 2007 | 2014 | 125.0 | 562.7 | Good | 81.3 | 20 0284L |
| NBI report | CONDE LANE | PRUITT CREEK | 0.1 MI N OF SHILOH ROAD | Concrete Arch - Deck | -- | 2008 | -- | 39.7 | 39.7 | Good | 96.0 | 20C0550 |
| NBI report | CONDE LANE | POOL CREEK | 0.2 MI N OF SHILOH RD | Concrete Arch - Deck | -- | 2008 | -- | 71.9 | 78.1 | Good | 97.0 | 20C0580 |
| NBI report | MONTE VISTA TERRAC | HILLSIDE | NEAR BR. 20C0403 | Steel Stringer/Multi-beam or girder (3 spans) | -- | 2008 | -- | 20.0 | 59.4 | Fair | 68.0 | 20C0549 |
| NBI report | E&W12-N101 CONNCTR | SANTA ROSA CREEK | 04-SON-101-20.00-SRO | Prestressed Box beam or girders - Multiple | -- | 2009 | -- | 168.6 | 168.6 | Fair | 95.1 | 20 0276H |
| NBI report | S101-E&W12 CONNCTR | SANTA ROSA CREEK | 04-SON-101-19.98-SRO | Prestressed Box beam or girders - Multiple | -- | 2009 | -- | 174.2 | 174.2 | Fair | 95.1 | 20 0276F |
| NBI report | STATE ROUTE 101 | COLLEGE AVENUE | 04-SON-101-20.74-SRO | Prestressed Box beam or girders - Multiple (2 spans) | -- | 2009 | -- | 96.5 | 192.9 | Good | 91.6 | 20 0277 |
| NBI report | U.S. HIGHWAY 101 | SANTA ROSA CREEK | 04-SON-101-19.99-SRO | Prestressed Box beam or girders - Multiple | -- | 2009 | -- | 170.6 | 170.6 | Fair | 92.5 | 20 0276 |
| NBI report | U.S. HIGHWAY 101 | SIXTH STREET | 04-SON-101-20.20-SRO | Prestressed Box beam or girders - Multiple | -- | 2009 | -- | 89.2 | 92.2 | Fair | 87.2 | 20 0285 |
| NBI report | U.S. ROUTE 101 | STEELE LANE | 04-SON-101-21.74-SRO | Prestressed Box beam or girders - Multiple | -- | 2009 | -- | 121.4 | 124.7 | Good | 81.0 | 20 0299 |
| NBI report | CAZADERO HWY | HILLSIDE | 3.6 MI N/O SR 116 | Steel Stringer/Multi-beam or girder (3 spans) | -- | 2011 | -- | 20.0 | 58.7 | Fair | 77.5 | 20C0554 |
| NBI report | SONOMA MTN RD | HILLSIDE | 1.27 MI S/O BENNETT V RD | Steel Stringer/Multi-beam or girder | -- | 2011 | -- | 29.2 | 29.5 | Fair | 71.5 | 20C0551 |
| NBI report | STATE ROUTE 128 | MAACAMA CREEK | 04-SON-128-17.25 | Concrete Box beam or girders - Multiple (2 spans) | -- | 2011 | -- | 102.7 | 205.4 | Poor | 86.9 | 20 0292 |
| NBI report | STATE ROUTE 128 | REDWOOD CREEK | 04-SON-128-21.78 | Concrete Box beam or girders - Multiple | -- | 2011 | -- | 75.5 | 75.5 | Good | 90.2 | 20 0293 |
| NBI report | STWRT PT-SKGG SPRG | HILLSIDE | 8.5 MI E/O SR 1 | Steel Stringer/Multi-beam or girder (3 spans) | -- | 2011 | -- | 20.0 | 60.0 | Fair | 82.3 | 20C0552 |
| NBI report | US HIGHWAY 101 | WEST RAILROAD AVENUE | 04-SON-101-10.67 | Prestressed Box beam or girders - Multiple | -- | 2011 | -- | 173.2 | 173.2 | Good | 85.0 | 20 0289 |
| NBI report | US HIGHWAY 101 | SR 116 GRAVENSTEIN HWY | 04-SON-101-12.70-COTI | Prestressed Box beam or girders - Multiple | -- | 2011 | -- | 159.1 | 159.1 | Fair | 84.0 | 20 0290 |
| NBI report | WILLOW CREEK ROAD | WILLOW CREEK | 1.45 MI E/O SR 1 | Prestressed Slab | -- | 2011 | -- | 45.6 | 47.9 | Good | 92.0 | 20C0570 |
| NBI report | OLD MONTE RIO ROAD | HILLSIDE | BTWN SANTA ROSA & DUNCAN | Steel Stringer/Multi-beam or girder (8 spans) | -- | 2012 | -- | 19.4 | 154.2 | Fair | 72.2 | 20C0573 |
| NBI report | SB101-GOLF CRS OFF | COMMERCE BLVD & NWPRR | 04-SON-101-15.07-RNPK | Prestressed Box beam or girders - Multiple (3 spans) | -- | 2012 | -- | 125.3 | 357.3 | Fair | 96.0 | 20 0287K |
| NBI report | SHILOH ROAD | PRUITT CREEK | 0.1 MI EAST OF CONDE LANE | Concrete Arch - Deck (2 spans) | -- | 2012 | -- | 31.2 | 62.3 | Good | 74.0 | 20C0575 |
| NBI report | US HIGHWAY 101 | WILFRED AV-GOLFCOURSE DR | 04-SON-101-14.89-RNPK | Prestressed Box beam or girders - Multiple (3 spans) | -- | 2012 | -- | 124.7 | 249.4 | Fair | 81.6 | 20 0286 |
| NBI report | US HIGHWAY 101 | COMMERCE BLVD & NWPRR | 04-SON-101-15.03-RNPK | Prestressed Box beam or girders - Multiple (3 spans) | -- | 2012 | -- | 130.6 | 372.4 | Fair | 88.3 | 20 0287 |
| NBI report | ROUTE 101 ON-RAMP | WASHINGTON CREEK | 04-SON-101-4.78-PET | Prestressed Stringer/Multi-beam or girder | -- | 2013 | -- | 119.8 | 119.8 | Good | 95.1 | 20 0163S |
| NBI report | AIRPORT BLVD | STATE ROUTE 101 | 04-SON-101-26.30 | Prestressed Box beam or girders - Multiple (2 spans) | -- | 2014 | -- | 165.0 | 330.1 | Good | 95.1 | 20 0297 |
| NBI report | FORT ROSS ROAD | HILLSIDE | 1.7 MI W/O KINGS RIDGE RD | Steel Stringer/Multi-beam or girder (4 spans) | -- | 2014 | -- | 19.7 | 79.1 | Fair | 70.3 | 20C0582 |
| NBI report | KASTANIA ROAD | STATE ROUTE 101 | 04-SON-101-2.60-PET | Prestressed Box beam or girders - Multiple | -- | 2014 | -- | 184.1 | 184.1 | Good | 96.8 | 20 0294 |
| NBI report | OFFRAMP NB RTE 101 | MARK WEST CREEK | 04-SON-101-26.12 | Prestressed Box beam or girders - Multiple | -- | 2014 | -- | 135.2 | 135.2 | Good | 94.7 | 20 0298S |
| NBI report | OLD REDWOOD HWY N | STATE ROUTE 101 | 04-SON-101-7.65-PET | Prestressed Stringer/Multi-beam or girder (2 spans) | -- | 2014 | -- | 133.2 | 261.8 | Good | 96.6 | 20 0291 |
| NBI report | PORTER CREEK ROAD | PORTER CREEK | 7.1 MI NE MARK WEST & 101 | Prestressed Stringer/Multi-beam or girder | -- | 2014 | -- | 160.1 | 160.1 | Good | 92.1 | 20C0572 |
| NBI report | AUSTIN CREEK ROAD | HILLSIDE | JUST S/O KRAMER ROAD | Steel Stringer/Multi-beam or girder (6 spans) | -- | 2015 | -- | 18.4 | 108.3 | Fair | 77.4 | 20C0585 |
| NBI report | PACIFIC AVENUE | HILLSIDE | IN JENNER | Steel Stringer/Multi-beam or girder (2 spans) | -- | 2015 | -- | 18.4 | 38.1 | Good | 81.7 | 20C0588 |
| NBI report | PACIFIC AVENUE | HILLSIDE | IN JENNER | Steel Stringer/Multi-beam or girder (2 spans) | -- | 2015 | -- | 18.0 | 38.1 | Good | 80.7 | 20C0589 |
| NBI report | STARRETT HILL DR | HILLSIDE | 0.8 MI SE JCT MOSCOW RD | Steel Stringer/Multi-beam or girder (4 spans) | -- | 2015 | -- | 19.4 | 76.4 | Good | 95.0 | 20C0587 |
| NBI report | STWRT PT-SKGG SPRG | HILLSIDE | 2.77 MI E OF ST HWY 1 | Steel Stringer/Multi-beam or girder (4 spans) | -- | 2015 | -- | 19.4 | 78.1 | Fair | 75.6 | 20C0583 |
| NBI report | STWRT PT-SKGG SPRG | HILLSIDE | 2.8 MI E OF ST HWY 1 | Steel Stringer/Multi-beam or girder (4 spans) | -- | 2015 | -- | 19.4 | 78.1 | Fair | 73.6 | 20C0584 |
| NBI report | US HIGHWAY 101 NB | SR 116, RR TRACKS, DITCH | 04-SON-101-3.60-PET | Prestressed Box beam or girders - Multiple (4 spans) | -- | 2015 | -- | 167.7 | 564.0 | Good | 83.6 | 20 0284R |
| NBI report | ROUTE 101 | PETALUMA RIVER | 04-SON-101-3.23-PET | Prestressed Stringer/Multi-beam or girder (5 spans) | -- | 2016 | -- | 212.6 | 907.2 | Good | 86.5 | 20 0295 |
| NBI report | HAUSER BR RD | SOUTH FORK GUALALA RIVER | 5 MI. EAST OF SEAVIEW RD. | Steel Arch - Deck (2 spans) | -- | 2017 | -- | 120.1 | 171.6 | Good | 98.3 | 20C0592 |
| NBI report | STATE ROUTE 12 | LAGUNA DE SANTA ROSA | 04-SON-012-9.63-SEB | Prestressed Stringer/Multi-beam or girder (3 spans) | -- | 2017 | -- | 80.4 | 235.9 | Good | 82.8 | 20 0296 |