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LA0997 over B PIGEON/LOWER GRAND R.

Map

Coordinates:
+30.07004, -91.28510
30°04'12" N, 91°17'06" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:LA0997 over B PIGEON/LOWER GRAND R.
Structure number:612402300309551
Location:LA0997
Purpose:Carries highway over waterway
Route classification:Minor Collector (Rural) [08]
Length of largest span:129.9 ft. [39.6 m]
Total length:340.9 ft. [103.9 m]
Roadway width between curbs:24.0 ft. [7.3 m]
Deck width edge-to-edge:40.0 ft. [12.2 m]
Vertical clearance below bridge:997.4 ft. [304.0 m]
Owner:State Highway Agency [01]
Year built:1957
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Design load:M 13.5 / H 15 [2]
Main span material:Steel [3]
Main span design:Movable - Swing [17]
Deck type:Other [9]
Wearing surface:Other [9]

Latest Available Inspection: November 2017

Good/Fair/Poor Condition:Fair
Status:Posted for load [P]
Average daily traffic:1,400 [as of 2016]
Truck traffic:10% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
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]
Pier/abutment protection:In place and functioning [2]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:33.2

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
November 2017FairSatisfactoryFairSatisfactory140033.2
November 2015FairSatisfactoryFairSatisfactory140033.0
October 2013FairSatisfactoryFairSatisfactory115033.0
September 2011FairSatisfactoryFairGood147033.0
June 2010FairSatisfactoryFairGood147033.0
June 2009FairSatisfactorySatisfactoryGood147043.0
June 2008FairSatisfactoryGoodVery Good162043.0
June 2007FairSatisfactoryGoodVery Good165043.0
June 2006FairSatisfactoryGoodVery Good168043.0
June 2005FairSatisfactoryGoodVery Good250041.0
June 2004FairSatisfactoryGoodVery Good240041.0
June 2003FairSatisfactoryGoodVery Good230041.0
June 2002FairSatisfactoryGoodVery Good200043.0
June 2001FairSatisfactoryGoodVery Good145243.0
June 2000FairSatisfactoryGoodVery Good145243.0
June 1999FairSatisfactoryGoodVery Good244541.0
July 1998FairSatisfactoryVery GoodVery Good244541.0
June 1997FairSatisfactoryVery GoodVery Good244541.0
June 1996FairSatisfactoryVery GoodVery Good173143.0
June 1995FairSatisfactoryVery GoodVery Good168143.0
June 1994FairSatisfactoryVery GoodVery Good165343.0
June 1993FairSatisfactoryVery GoodVery Good121043.0
June 1992FairSatisfactoryVery GoodVery Good137743.0
June 1991FairSatisfactoryVery GoodVery Good137743.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Stringerlinear ft.63656224500
Steel Protective Coatingsq. ft.1,7601,67642420
Steel Floor Beamlinear ft.6868000
Steel Protective Coatingsq. ft.2,7202,07464600
Substructure
Reinforced Concrete Abutmentlinear ft.6666000
Prestressed Concrete Pileeach36020160
Reinforced Concrete Pier Caplinear ft.223214180
Deck
Corrugated or Orthotropic Decksq. ft.4,3394,14141940
Steel Protective Coatingsq. ft.6,0995,5102023870
Joints
Pourable Jointlinear ft.216002160
Open Jointlinear ft.108108000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.681681000
Steel Protective Coatingsq. ft.7,3897,389000
Deck
Reinforced Concrete Slabsq. ft.4,860014,8590