+30.84483, -91.40440
30°50'41" N, 91°24'16" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:LA0066 over BIG BAYOU SARA
Structure number:616302510101511
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:103.0 ft. [31.4 m]
Total length:717.9 ft. [218.8 m]
Roadway width between curbs:24.0 ft. [7.3 m]
Deck width edge-to-edge:28.2 ft. [8.6 m]
Owner:State Highway Agency [01]
Year built:1949
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 13.5 / H 15 [2]
Number of main spans:5
Main spans material:Steel [3]
Main spans design:Truss - Thru [10]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: March 2016

Good/Fair/Poor Condition:Fair
Status:Posted for load [P]
Average daily traffic:1,630 [as of 2015]
Truck traffic:13% 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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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:Navigation protection not required [1]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Sufficiency rating:53.5

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
March 2016FairSatisfactoryFairSatisfactory163053.5
March 2014FairSatisfactoryFairSatisfactory166053.4
May 2013FairSatisfactoryFairSatisfactory169053.4
April 2011FairSatisfactoryFairSatisfactory210046.1
March 2010FairSatisfactorySatisfactoryVery Good197059.1
March 2009FairSatisfactorySatisfactoryVery Good168059.4
March 2008FairSatisfactorySatisfactoryGood177059.3
March 2007FairSatisfactorySatisfactoryGood197059.1
March 2006FairSatisfactorySatisfactoryGood260056.2
March 2005FairSatisfactoryGoodGood260056.2
March 2004FairSatisfactoryGoodGood330055.3
March 2002FairSatisfactoryGoodGood179059.3
March 2001FairSatisfactoryGoodGood179059.3
March 2000FairSatisfactoryGoodGood179059.3
March 1998FairSatisfactoryVery GoodGood548445.0
March 1996FairSatisfactoryVery GoodGood181950.3
March 1994FairSatisfactoryVery GoodGood122249.1
March 1992FairSatisfactoryVery GoodGood137648.9

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.8007440560
Steel Protective Coatingsq. ft.4,76004,704056
Steel Stringerlinear ft.2,5502,39501550
Steel Protective Coatingsq. ft.9,77509,6200155
Reinforced Concrete Decksq. ft.17,040016,2268140
Steel Trusslinear ft.1,43401,42950
Steel Protective Coatingsq. ft.100010000
Steel Floor Beamlinear ft.1,0449880560
Steel Protective Coatingsq. ft.8,483008,4830
Steel Gusset Plateeach200020000
Steel Protective Coatingsq. ft.1,600001,6000
Reinforced Concrete Pier Walllinear ft.1700125450
Reinforced Concrete Abutmentlinear ft.68520160
Reinforced Concrete Pileeach1212000
Reinforced Concrete Pier Caplinear ft.251251000
Open Jointlinear ft.168168000
Assembly without Seal Jointlinear ft.9696000
Movable Bearingeach3022080
Steel Protective Coatingsq. ft.289028900
Fixed Bearingeach3002910
Steel Protective Coatingsq. ft.274027400
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.1,02001,02000
Steel Protective Coatingsq. ft.3,39703,39700
Reinforced Concrete Bridge Raillinear ft.400400000