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Dewey County
| Carries | Crosses | Location | Design | Status | Year Built | Year Recon. | Span Len. | Total Len. | Condition | Suff. Rating | ID |
|---|
| NBI report | IRR STATE PARK RD | LITTLE MOREAU RV | 5.7S .3W TIMBER LK | Steel Stringer/Multi-beam or girder | -- | 1950 | -- | 30.5 | 32.2 | Fair | 33.7 | 000000021207087 |
| NBI report | IRR US212 | LITTLE BEAR CK | 1.8 E ZIEBACH CO LINE | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1954 | -- | 42.7 | 133.5 | Poor | 48.0 | 000000021021307 |
| NBI report | FAS 6247 | BEAR CK | 0.7 W 3.1 N LANTRY | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1960 | -- | 48.9 | 149.0 | Poor | 58.0 | 000000021030282 |
| NBI report | IRR BIA RTE 2 | LITTLE MOREAU CREEK | 3.2 KM W OF WHITE HORSE | Concrete Slab (3 spans) | -- | 1960 | -- | 29.9 | 80.1 | Fair | 73.4 | 00000000000A003 |
| NBI report | IRR BIA RTE 7 | BEAVER CREEK | 7.2 KM EAST OF PROMISE | Concrete Channel beam (3 spans) | -- | 1960 | -- | 30.8 | 93.8 | Fair | 76.9 | 00000000000A006 |
| NBI report | IRR BIA RTE 7 | NO MOUTH CREEK | 25.7 KM NO. OF US HWY 212 | Concrete Channel beam (4 spans) | -- | 1960 | -- | 30.8 | 100.7 | Poor | 54.5 | 00000000000A007 |
| NBI report | IRR COUNTY ROAD | CK | 7.0W 9.0S TIMBER LK | Concrete Culvert (2 spans) | -- | 1960 | -- | 9.8 | 20.3 | Fair | 77.6 | 000000021138120 |
| NBI report | IRR BIA RTE 2 | RED WATER CREEK | 8.5 KM E OF SD HWY 63 | Concrete Channel beam (3 spans) | -- | 1961 | -- | 30.8 | 69.9 | Fair | 85.4 | 00000000000A002 |
| NBI report | IRR BIA RTE 7 | VIRGIN CREEK | 0.5 KM EAST OF PROMISE | Concrete Channel beam (5 spans) | -- | 1961 | -- | 30.8 | 148.0 | Fair | 82.7 | 00000000000A111 |
| NBI report | IRR BIA RTE 7 | MOREAU RIVER | .7 KM NORTH OF PROMISE | Steel Stringer/Multi-beam or girder (6 spans) | -- | 1961 | -- | 69.6 | 418.0 | Fair | 69.7 | 00000000000A143 |
| NBI report | IRR COUNTY ROAD | CK | 0.5E WHITE HORSE | Concrete Stringer/Multi-beam or girder (3 spans) | -- | 1962 | -- | 30.8 | 92.9 | Poor | 38.2 | 000000021313140 |
| NBI report | IRR BIA RTE 3 | HAND BOY CREEK | 3.2KM W OF RTE 7 JUNCTION | Concrete Channel beam (3 spans) | -- | 1964 | -- | 30.8 | 94.2 | Fair | 85.0 | 00000000000A005 |
| NBI report | IRR COUNTY ROAD | CK | 1.7 W 5.2 N LANTRY | Steel Stringer/Multi-beam or girder | -- | 1965 | -- | 23.0 | 24.0 | Fair | 71.5 | 000000021020261 |
| NBI report | IRR SD063 | MOREAU RV | 13 N JCT US 212 | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1971 | -- | 149.9 | 394.0 | Fair | 90.6 | 000000021148201 |
| NBI report | IRR BIA RTE 3 | MOREAU RIVER | 3.8 KM SE OF WHITEHORSE | Steel Stringer/Multi-beam or girder (3 spans) | -- | 1987 | -- | 80.1 | 200.1 | Good | 97.1 | 00000000000A110 |
| NBI report | IRR US212 | VIRGIN CK | 0.6 E OF LAPLANT | Concrete Slab (3 spans) | -- | 1988 | -- | 42.7 | 119.1 | Good | 94.9 | 000000021424228 |
| NBI report | IRR US212 | VIRGIN CK | 0.6 W OF LAPLANT | Concrete Slab (3 spans) | -- | 1990 | -- | 42.7 | 119.1 | Good | 94.5 | 000000021411226 |
| NBI report | IRR SD020 | LITTLE MOREAU RV | 0.1 W JCT SD 63 | Concrete Culvert (3 spans) | -- | 1993 | -- | 7.5 | 23.6 | Good | 97.8 | 000000021139030 |
| NBI report | IRR SD020 | CK | 3.3 E JCT SD 63 | Concrete Culvert (2 spans) | -- | 1997 | -- | 12.8 | 26.2 | Good | 96.3 | 000000021174030 |
| NBI report | IRR SD020 | CK | 5.2 E JCT SD 63 | Concrete Culvert (3 spans) | -- | 1997 | -- | 9.8 | 31.2 | Good | 96.3 | 000000021191029 |
| NBI report | IRR BIA RTE 7 | SWIFTBIRD CREEK | 6.9KM N OF JUNCTION 212/7 | Prestressed Stringer/Multi-beam or girder (2 spans) | -- | 2004 | -- | 77.4 | 154.9 | Good | 92.6 | 00000000000A139 |
| NBI report | BIA 3 | CK | 2N PROMISE | Prestressed Tee beam (3 spans) | -- | 2008 | -- | 40.0 | 111.9 | Good | 92.8 | 000000021438079 |
| NBI report | IRR BIA ROUTE 8 | EAST BRANCH WILLOW CREEK | RTE 8 OVER E BRCH WIL CRK | Concrete Tee beam | -- | 2008 | -- | 93.8 | 100.1 | Good | 92.8 | 00000000000A146 |
| NBI report | IRR COUNTY ROAD | TRIB TO LITTLE MOREAU R | 3.0S 2.5E FIRESTEEL | Concrete Culvert (2 spans) | -- | 2008 | -- | 19.7 | 40.7 | Good | 99.5 | 000000021136060 |
| NBI report | IRR BIA RTE 3 | VEO CREEK | 16 KM EAST OF WHITEHORSE | Steel Stringer/Multi-beam or girder | -- | 2016 | -- | 74.2 | 76.1 | Good | 96.0 | 0000A01340B0004 |