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EIGHT MILE ROAD over BISHOP CANAL

Map

Coordinates:
+38.05832, -121.41899
38°03'30" N, 121°25'08" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:EIGHT MILE ROAD over BISHOP CANAL
Structure number:29C0114
Location:JUST W OF RIO BLANCO RD
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:45.9 ft. [14.0 m]
Total length:319.9 ft. [97.5 m]
Roadway width between curbs:36.1 ft. [11.0 m]
Deck width edge-to-edge:38.7 ft. [11.8 m]
Vertical clearance below bridge:19.7 ft. [6.0 m]
Owner:County Highway Agency [02]
Year built:1989
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:2
Main spans material:Steel [3]
Main spans design:Movable - Swing [17]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: January 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:1,000 [as of 2015]
Truck traffic:3% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Fair [5 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:Better than present minimum criteria [7]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Channel protection:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Sufficiency rating:67.3

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
January 2018FairGoodFairFair100067.3
January 2016GoodVery GoodGoodGood100079.7
January 2014FairSatisfactoryGoodSatisfactory198574.0
January 2012FairFairGoodFair260061.0
February 2010FairFairGoodFair400061.0
March 2008FairFairGoodFair400061.0
February 2006FairFairGoodFair400061.0
March 2004FairFairGoodFair400061.0
February 2004FairFairGoodFair400061.0
February 2002PoorSeriousSatisfactoryFair400057.0
August 2000PoorSeriousSatisfactoryPoor400042.0
April 1998PoorSeriousSatisfactoryPoor400042.0
April 1996FairSatisfactoryGoodSatisfactory344074.0
April 1994FairSatisfactoryGoodSatisfactory344074.0
March 1992FairSatisfactoryGoodSatisfactory344074.0