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LOCAL ROAD over LAKE PONTCHARTRAIN

Map

Coordinates:
+30.20306, -90.12212
30°12'11" N, 90°07'20" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:LOCAL ROAD over LAKE PONTCHARTRAIN
Structure number:625230123900731
Location:CAUSEWAY SOUTHBOUND
Purpose:Carries highway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Tolls:Yes [1]
Length of largest span:180.1 ft. [54.9 m]
Total length:125833.2 ft. [38352.1 m]
Roadway width between curbs:27.9 ft. [8.5 m]
Deck width edge-to-edge:31.5 ft. [9.6 m]
Vertical clearance below bridge:999.1 ft. [304.5 m]
Owner:Other Local Agencies [25]
Year built:1956
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Design load:MS 18 / HS 20 [5]
Main span material:Steel [3]
Main span design:Movable - Bascule [16]
Deck type:Open Grating [3]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: June 2016

Good/Fair/Poor Condition:Fair
Status:Posted for load [P]
Average daily traffic:18,830 [as of 1987]
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:Basically intolerable requiring high priority of corrrective action [3]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Scour condition:Bridge with "unknown" foundation that has not been evaluated for scour. [U]
Operating rating:58.9 tons [53.5 metric tons]
Inventory rating:33.9 tons [30.8 metric tons]
Sufficiency rating:59.1
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$343,507,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
June 201659.1FairGoodSatisfactoryGoodFO18830
May 201558.9FairGoodSatisfactoryGoodFO18830
April 201358.9FairGoodSatisfactoryGoodFO18830
November 201063.9FairGoodSatisfactoryGoodFO18830
October 200963.9FairGoodSatisfactoryGoodFO18830
November 200863.9FairGoodSatisfactoryGoodFO18830
September 200763.9GoodVery GoodVery GoodVery GoodFO18830
November 200463.9FairGoodSatisfactoryGoodFO18830
July 200263.9FairGoodSatisfactorySatisfactoryFO18830
October 200063.9FairGoodSatisfactorySatisfactoryFO18830
November 199652.9FairVery GoodGoodFairFO18830
August 199062.8GoodVery GoodVery GoodVery GoodFO18830

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Girder/Beamlinear ft.2,5332,25028300
Prestressed Concrete Girder/Beamlinear ft.890,65721,338601,779173,27994,261
Steel Stringerlinear ft.1,0261,026000
Deck
Reinforced Concrete Decksq. ft.4,053,6604,1564,049,50400
Superstructure
Steel Floor Beamlinear ft.438438000
Substructure
Reinforced Concrete Abutmentlinear ft.1821186400
Prestressed Concrete Pileeach5,2593774,88200
Reinforced Concrete Pier Caplinear ft.75,1442,25672,3755130
Deck
Open Grid Decksq. ft.3,9203,920000
Concrete Filled Grid Decksq. ft.1,0081,008000
Joints
Pourable Jointlinear ft.2,0872,0553200
Open Jointlinear ft.66,00665,89401120
Bearings
Elastomeric Bearingeach320320000
Movable Bearingeach3,176003,1751
Fixed Bearingeach28,264028,26400
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.286028600
Reinforced Concrete Bridge Raillinear ft.254,09441,923211,3867850
Timber Bridge Raillinear ft.5605600
Deck
Reinforced Concrete Slabsq. ft.43,24043,240000