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LA1264 over ON-RAMP TO SEABROOK BR.

Map

Coordinates:
+30.03158, -90.03524
30°01'54" N, 90°02'07" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:LA1264 over ON-RAMP TO SEABROOK BR.
Structure number:023630019900215
Location:.65 MI. W. OF DOWNMAN RD.
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:81.0 ft. [24.7 m]
Total length:866.2 ft. [264.0 m]
Roadway width between curbs:20.3 ft. [6.2 m]
Deck width edge-to-edge:25.3 ft. [7.7 m]
Vertical clearance below bridge:14.4 ft. [4.4 m]
Skew angle:15°
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]
Number of main spans:14
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: March 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:113 [as of 2015]
Deck condition:Good [7 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 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]
Roadway alignment appraisal:Better than present minimum criteria [7]
Scour condition:Bridge with "unknown" foundation that has not been evaluated for scour. [U]
Operating rating:43.9 tons [39.9 metric tons]
Inventory rating:36.0 tons [32.7 metric tons]
Sufficiency rating:98.0

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
March 201798.0FairGoodSatisfactorySatisfactory-113
March 201598.0FairGoodSatisfactorySatisfactory-113
April 201398.0FairGoodSatisfactorySatisfactory-113
May 201198.0FairGoodSatisfactorySatisfactory--
July 200998.0FairSatisfactorySatisfactorySatisfactory--
March 200787.0FairSatisfactorySatisfactoryFair--
June 200587.0FairSatisfactorySatisfactoryFair--
January 200498.0FairSatisfactorySatisfactorySatisfactory--
February 200287.0FairFairFairSatisfactory--
October 199987.0FairFairFairSatisfactory--
August 199787.0FairFairFairSatisfactory--
June 199587.0FairSatisfactoryFairSatisfactory--
May 199387.0FairSatisfactoryFairSatisfactory--
May 199185.0FairSatisfactoryFairSatisfactory--

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Girder/Beamlinear ft.792007920
Reinforced Concrete Girder/Beamlinear ft.1,9681,968000
Deck
Reinforced Concrete Decksq. ft.14,49014,490000
Substructure
Reinforced Concrete Pier Walllinear ft.3030000
Reinforced Concrete Abutmentlinear ft.2525000
Reinforced Concrete Pileeach2020000
Reinforced Concrete Pier Caplinear ft.102010200
Joints
Pourable Jointlinear ft.189018900
Open Jointlinear ft.294294000
Bearings
Elastomeric Bearingeach112112000
Bridge Rail
Other Material Bridge Raillinear ft.1,74201,74200
Deck
Reinforced Concrete Slabsq. ft.3,80103,80100