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LA 1264 over INTER COASTAL WATERWAY

Map

Coordinates:
+30.03263, -90.03140
30°01'57" N, 90°01'53" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:LA 1264 over INTER COASTAL WATERWAY
Structure number:023630019900211
Location:0.5 MI.W.OF DOWMAN R
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:100.1 ft. [30.5 m]
Total length:1942.0 ft. [591.9 m]
Roadway width between curbs:57.1 ft. [17.4 m]
Deck width edge-to-edge:68.6 ft. [20.9 m]
Vertical clearance below bridge:45.9 ft. [14.0 m]
Owner:State Highway Agency [01]
Year built:1975
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Main span material:Steel [3]
Main span design:Movable - Bascule [16]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: August 2017

Good/Fair/Poor Condition:Fair
Status:Posted for load [P]
Average daily traffic:1,110 [as of 2016]
Deck condition:Good [7 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Water adequacy appraisal:Better than present minimum criteria [7]
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]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:85.3

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2017FairGoodSatisfactoryGood111085.3
September 2015FairGoodSatisfactoryGood113085.0
September 2013FairGoodSatisfactoryGood113085.0
July 2011GoodGoodGoodGood-85.2
July 2009FairSatisfactorySatisfactorySatisfactory-85.2
May 2007FairSatisfactorySatisfactorySatisfactory-85.2
June 2006FairSatisfactorySatisfactorySatisfactory-85.2
March 2003FairSatisfactorySatisfactorySatisfactory-85.2
August 1999FairFairSatisfactorySatisfactory-84.2
August 1997FairFairSatisfactorySatisfactory-84.2
July 1995FairFairSatisfactorySatisfactory-83.2
July 1993FairFairSatisfactorySatisfactory-83.2
June 1991FairFairSatisfactorySatisfactory-84.2

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.87584320120
Steel Protective Coatingsq. ft.9,1904,5064,000500184
Prestressed Concrete Girder/Beamlinear ft.20,47320,39520580
Steel Stringerlinear ft.558557100
Steel Protective Coatingsq. ft.7,0464,9351,7613500
Deck
Reinforced Concrete Decksq. ft.117,74888,27829,448220
Superstructure
Steel Floor Beamlinear ft.69565510300
Steel Protective Coatingsq. ft.8,4636,1782,1160169
Substructure
Steel Columneach80062
Steel Protective Coatingsq. ft.1,5970799399399
Reinforced Concrete Columneach156995160
Reinforced Concrete Pier Walllinear ft.140132800
Reinforced Concrete Abutmentlinear ft.136132400
Reinforced Concrete Pile Cap/Footinglinear ft.258255030
Steel Pier Caplinear ft.100100000
Steel Protective Coatingsq. ft.9909755010
Reinforced Concrete Pier Caplinear ft.2,4222,32152454
Deck
Open Grid Decksq. ft.6,9446,734200100
Steel Protective Coatingsq. ft.5,3755,10626900
Joints
Pourable Jointlinear ft.1,072001,0720
Open Jointlinear ft.1,3121,312000
Bearings
Elastomeric Bearingeach5164941210
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.4,0613,97350380
Reinforced Concrete Bridge Raillinear ft.3,8293,72585190
Deck
Reinforced Concrete Slabsq. ft.21,44015,8165,62310