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KING RIDGE RD over BIG AUSTIN CREEK

Sonoma County, California

Map

Coordinates:
+38.56104, -123.10214
38°33'40" N, 123°06'08" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:KING RIDGE RD over BIG AUSTIN CREEK
Structure number:20C0433
Location:2.3 MI N FORT ROSS RD
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:49.9 ft. [15.2 m]
Total length:124.0 ft. [37.8 m]
Roadway width between curbs:16.1 ft. [4.9 m]
Deck width edge-to-edge:16.7 ft. [5.1 m]
Skew angle:30°
Owner:County Highway Agency [02]
Year built:1965
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Number of main spans:3
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: June 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:200 [as of 2015]
Truck traffic:4% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Water adequacy appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Equal to present minimum criteria [6]
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 is scour critical; bridge foundations determined to be unstable. [3]
Sufficiency rating:76.9

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
June 2018FairGoodFairGood20076.9
June 2016GoodVery GoodGoodGood20085.9
June 2014GoodVery GoodGoodGood20085.9
June 2012FairGoodFairSatisfactory20074.8
October 2010FairGoodFairSatisfactory10075.1
June 2008FairGoodFairSatisfactory10075.1
July 2006FairGoodFairSatisfactory10075.1
June 2004FairGoodFairSatisfactory10075.1
June 2002FairGoodFairSatisfactory10076.7
December 2000FairGoodFairSatisfactory10076.6
August 1997FairGoodFairSatisfactory10073.6
September 1995GoodGoodGoodGood10085.3
July 1993GoodGoodGoodGood10085.3
April 1990GoodGoodGoodGood10085.3