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SIR FRANCIS DRAKE over CORTE MADERA CREEK

Map

Coordinates:
+37.96790, -122.55980
37°58'04" N, 122°33'35" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:SIR FRANCIS DRAKE over CORTE MADERA CREEK
Structure number:27C0050
Location:3.0 MI E OF US HWY 101
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Local (Urban) [19]
Length of largest span:49.9 ft. [15.2 m]
Total length:63.0 ft. [19.2 m]
Roadway width between curbs:30.5 ft. [9.3 m]
Deck width edge-to-edge:44.0 ft. [13.4 m]
Owner:City or Municipal Highway Agency [04]
Year built:1926
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Main span material:Concrete [1]
Main span design:Arch - Deck [11]
Deck type:Not applicable [N]

Latest Available Inspection: July 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:32,300 [as of 2005]
Truck traffic:5% 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:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Basically intolerable requiring high priority of corrrective action [3]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Better than present minimum criteria [7]
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 foundations determined to be stable for assessed or calculated scour condition. [5]
Sufficiency rating:54.4
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$366,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
July 2017GoodGoodGoodGood3230054.4
July 2015Good-GoodGood3230054.4
July 2013Good-GoodGood3230054.4
July 2011GoodGoodGoodGood3230060.2
August 2009GoodGoodGoodGood1830062.3
July 2007GoodGoodGoodGood1830062.3
July 2005GoodGoodGoodGood1830062.3
January 2005GoodGoodGoodGood1830062.3
July 2003GoodGoodGoodGood1830062.3
August 2001GoodGoodGoodGood1830062.3
August 2000FairGoodFairGood1830051.7
March 1999FairGoodFairGood1830051.7
June 1996FairGoodFairGood1830051.7
December 1993FairGoodFairFair1830054.8
October 1989FairGoodFairFair1830054.8