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LA0092 over TECHE BAYOU @ KEYSTONE

Map

Coordinates:
+30.09672, -91.83373
30°05'48" N, 91°50'01" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:LA0092 over TECHE BAYOU @ KEYSTONE
Structure number:035002130804881
Location:0.49 MI E OF LA 31
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:142.1 ft. [43.3 m]
Total length:323.2 ft. [98.5 m]
Roadway width between curbs:32.2 ft. [9.8 m]
Deck width edge-to-edge:34.8 ft. [10.6 m]
Vertical clearance above deck:18.7 ft. [5.7 m]
Vertical clearance below bridge:9.8 ft. [3.0 m]
Owner:State Highway Agency [01]
Year built:1984
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 - Swing [17]
Deck type:Open Grating [3]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: November 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:4,400 [as of 2015]
Truck traffic:19% of total traffic
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: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 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:In place and functioning [2]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:47.9 tons [43.5 metric tons]
Inventory rating:34.9 tons [31.7 metric tons]
Sufficiency rating:84.5

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
November 201684.5FairGoodSatisfactoryGood-4400
November 201485.4FairGoodSatisfactoryGood-4300
November 201286.6GoodGoodGoodGood-3700
November 201086.6GoodGoodGoodGood-3600
December 200886.7GoodGoodGoodGood-3200
November 200686.8GoodGoodGoodGood-2900
December 200486.9GoodGoodGoodGood-2800
December 200286.7GoodGoodGoodGood-3300
November 200087.1GoodGoodGoodGood-3046
October 199887.1GoodGoodVery GoodGood-3046
December 199687.2GoodGoodVery GoodGood-2589
October 199488.4GoodGoodVery GoodGood-1990
December 199288.5GoodGoodVery GoodGood-1703
October 199088.5GoodGoodVery GoodGood-1703

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Girder/Beamlinear ft.270270000
Steel Stringerlinear ft.910910000
Deck
Reinforced Concrete Decksq. ft.2,2322,232000
Superstructure
Steel Floor Beamlinear ft.288288000
Substructure
Reinforced Concrete Abutmentlinear ft.8484000
Prestressed Concrete Pileeach109109000
Reinforced Concrete Pier Caplinear ft.380380000
Deck
Open Grid Decksq. ft.2,2402,240000
Joints
Pourable Jointlinear ft.352352000
Open Jointlinear ft.9696000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.280280000
Reinforced Concrete Bridge Raillinear ft.360360000
Deck
Reinforced Concrete Slabsq. ft.5,7605,760000