Share:

QUINCY-LA PORTE RD over MIDDLE FORK FEATHER RIV

Map

Coordinates:
+39.85924, -120.84982
39°51'33" N, 120°50'59" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:QUINCY-LA PORTE RD over MIDDLE FORK FEATHER RIV
Structure number:09C0004
Location:7.9 MI S/W SH 70
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:106.0 ft. [32.3 m]
Total length:269.0 ft. [82.0 m]
Roadway width between curbs:27.9 ft. [8.5 m]
Deck width edge-to-edge:28.5 ft. [8.7 m]
Skew angle:99°
Owner:County Highway Agency [02]
Year built:1975
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Prestressed concrete continuous [6]
Main spans design:Box beam or girders - Multiple [05]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: October 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:180 [as of 2016]
Truck traffic:5% 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:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
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:85.0

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
October 2017FairGoodGoodFair18085.0
October 2015GoodGoodVery GoodGood11596.5
October 2013FairSatisfactoryVery GoodGood11594.5
October 2011FairSatisfactoryVery GoodGood11594.5
August 2009FairSatisfactoryVery GoodGood10094.5
September 2007FairSatisfactoryVery GoodGood10094.5
September 2005FairSatisfactoryVery GoodGood10094.5
June 2003FairSatisfactoryVery GoodGood10094.5
June 2001GoodGoodVery GoodGood10094.5
July 1999GoodGoodVery GoodGood10094.5
July 1994GoodGoodVery GoodGood10095.6
August 1992GoodGoodVery GoodGood10095.6