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KING RIDGE RD over BIG AUSTIN CREEK

Sonoma County, California

Map

Coordinates:
+38.55278, -123.09278
38°33'10" N, 123°05'34" 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 2016

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:200 [as of 2010]
Truck traffic:4% of total traffic
Deck condition:Very Good [8 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Water adequacy appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Meets minimum tolerable limits to be left in place as is [4]
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]
Operating rating:71.9 tons [65.4 metric tons]
Inventory rating:43.1 tons [39.2 metric tons]
Sufficiency rating:85.9

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
June 201685.9GoodVery GoodGoodGoodFO200
June 201485.9GoodVery GoodGoodGoodFO200
June 201274.8FairGoodFairSatisfactoryFO200
October 201075.1FairGoodFairSatisfactoryFO100
June 200875.1FairGoodFairSatisfactoryFO100
July 200675.1FairGoodFairSatisfactoryFO100
June 200475.1FairGoodFairSatisfactoryFO100
June 200276.7FairGoodFairSatisfactory-100
December 200076.6FairGoodFairSatisfactory-100
August 199773.6FairGoodFairSatisfactory-100
September 199585.3GoodGoodGoodGood-100
July 199385.3GoodGoodGoodGood-100
April 199085.3GoodGoodGoodGood-100