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RIVER ROAD over U.S. HIGHWAY 101

Sonoma County, California

Map

Coordinates:
+38.49611, -122.75611
38°29'46" N, 122°45'22" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:RIVER ROAD over U.S. HIGHWAY 101
Structure number:20 0199
Location:04-SON-101-24.86
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Collector (Urban) [17]
Length of largest span:102.0 ft. [31.1 m]
Total length:304.1 ft. [92.7 m]
Roadway width between curbs:32.2 ft. [9.8 m]
Deck width edge-to-edge:40.4 ft. [12.3 m]
Vertical clearance below bridge:15.1 ft. [4.6 m]
Skew angle:48°
Owner:State Highway Agency [01]
Year built:1962
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:4
Main spans material:Concrete continuous [2]
Main spans design:Box beam or girders - Multiple [05]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: August 2016

Good/Fair/Poor Condition:Poor
Status:Open, no restriction [A]
Average daily traffic:9,000 [as of 2011]
Truck traffic:2% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Poor [4 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:81.6 tons [74.2 metric tons]
Inventory rating:49.2 tons [44.7 metric tons]
Sufficiency rating:64.0
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$1,911,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
August 201664.0PoorGoodPoorGoodSD9000
September 201491.0GoodVery GoodGoodVery GoodFO9000
August 201291.0FairGoodSatisfactoryGoodFO9000
October 201080.0FairGoodFairGoodFO9000
July 200880.0FairGoodFairGoodFO9000
August 200680.0FairGoodFairGoodFO9000
September 200480.0FairFairFairGoodFO9000
August 200280.0FairFairFairGoodFO9000
September 200091.0FairFairSatisfactoryGoodFO9000
January 199991.0FairFairSatisfactoryGoodFO9000
January 199891.0FairFairSatisfactoryGoodFO9000
November 199691.0FairFairSatisfactoryGoodFO9000
September 199492.0GoodGoodGoodGoodFO9000
December 199292.0GoodGoodGoodGoodFO9000
June 199092.0GoodGoodGoodGoodFO9000