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LARKMEAD LANE over NAPA RIVER

Map

Coordinates:
+38.56047, -122.52211
38°33'38" N, 122°31'20" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:LARKMEAD LANE over NAPA RIVER
Structure number:21C0061
Location:0.6 MI N OF S.R. 29
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:42.0 ft. [12.8 m]
Total length:85.0 ft. [25.9 m]
Roadway width between curbs:20.0 ft. [6.1 m]
Deck width edge-to-edge:22.6 ft. [6.9 m]
Owner:County Highway Agency [02]
Year built:1926
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Number of main spans:2
Main spans material:Concrete [1]
Main spans design:Tee beam [04]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: May 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:484 [as of 2014]
Truck traffic:10% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Basically intolerable requiring high priority of corrrective action [3]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Scour condition:Bridge with "unknown" foundation that has not been evaluated for scour. [U]
Sufficiency rating:68.3
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$300,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
May 2017GoodGoodGoodGood48468.3
May 2015GoodVery GoodVery GoodGood48468.3
October 2013FairGoodFairGood33062.1
October 2011FairGoodFairGood33065.1
November 2009FairGoodFairGood33065.1
October 2007FairGoodFairGood33064.5
November 2005FairGoodFairGood33064.5
October 2003GoodGoodGoodGood33074.6
October 2001GoodGoodGoodGood33072.6
September 2000GoodGoodGoodGood33072.6
November 1999GoodGoodGoodGood33072.6
October 1997GoodGoodGoodGood33072.6
June 1996GoodGoodGoodGood33072.6
March 1994FairVery GoodSatisfactorySatisfactory33072.3
June 1993FairVery GoodSatisfactorySatisfactory33072.3
February 1990FairVery GoodSatisfactorySatisfactory33072.3