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RIVER ROAD over U.S. HIGHWAY 101

Sonoma County, California

Map

Coordinates:
+38.49614, -122.75670
38°29'46" N, 122°45'24" 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:13.1 ft. [4.0 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]
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

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2016PoorGoodPoorGood900064.0
September 2014GoodVery GoodGoodVery Good900091.0
August 2012FairGoodSatisfactoryGood900091.0
October 2010FairGoodFairGood900080.0
July 2008FairGoodFairGood900080.0
August 2006FairGoodFairGood900080.0
September 2004FairFairFairGood900080.0
August 2002FairFairFairGood900080.0
September 2000FairFairSatisfactoryGood900091.0
January 1999FairFairSatisfactoryGood900091.0
January 1998FairFairSatisfactoryGood900091.0
November 1996FairFairSatisfactoryGood900091.0
September 1994GoodGoodGoodGood900092.0
December 1992GoodGoodGoodGood900092.0
June 1990GoodGoodGoodGood900092.0