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DIAMOND MTN RD over LIGHTS CREEK

Map

Coordinates:
+40.15002, -120.79513
40°09'00" N, 120°47'42" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:DIAMOND MTN RD over LIGHTS CREEK
Structure number:09C0044
Location:4.9 MI NE GRNVLE-BECK RD
Purpose:Carries highway over waterway
Route classification:Minor Collector (Rural) [08]
Length of largest span:49.9 ft. [15.2 m]
Total length:103.0 ft. [31.4 m]
Roadway width between curbs:25.6 ft. [7.8 m]
Deck width edge-to-edge:26.2 ft. [8.0 m]
Skew angle:24°
Owner:County Highway Agency [02]
Year built:1956
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 18 / H 20 [4]
Number of main spans:2
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: September 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:70 [as of 2016]
Truck traffic:7% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Equal to present minimum criteria [6]
Water adequacy appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank protection is being eroded. River control devices and/or embankment have major damage. Trees and rush restrict the channel. [5]
Scour condition:Bridge with "unknown" foundation that has not been evaluated for scour. [U]
Sufficiency rating:84.9

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2017FairGoodGoodFair7084.9
September 2015GoodGoodGoodGood17093.3
September 2013FairGoodFairSatisfactory17081.3
August 2011FairGoodFairSatisfactory17081.3
August 2009FairGoodFairSatisfactory17081.3
October 2007FairGoodFairSatisfactory17081.3
September 2005FairSatisfactoryFairSatisfactory17081.3
August 2004FairSatisfactoryFairSatisfactory17081.3
June 2003FairSatisfactoryFairSatisfactory17081.3
August 2001FairGoodFairSatisfactory17081.3
July 1999FairGoodFairGood17081.3
September 1997FairGoodFairGood17081.3
March 1997FairGoodSatisfactoryGood17092.3
June 1994FairSatisfactorySatisfactoryFair17081.8
June 1992FairSatisfactorySatisfactoryFair17081.8