+30.41744, -91.09040
30°25'03" N, 91°05'25" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Structure number:611704540101731
Location:I-12 E.B. @ JEFFERSON HWY
Purpose:Carries highway over highway and waterway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:180.1 ft. [54.9 m]
Total length:865.2 ft. [263.7 m]
Roadway width between curbs:73.2 ft. [22.3 m]
Deck width edge-to-edge:76.1 ft. [23.2 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:99°
Owner:State Highway Agency [01]
Year built:1999
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 18 / HS 20 [5]
Number of main spans:8
Main spans material:Steel [3]
Main spans design:Girder and floorbeam system [03]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: February 2015 

Status:Open, no restriction [A]
Average daily traffic:77,940 [as of 2015]
Deck condition:Good [7 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Superior to present desirable criteria [9]
Underclearances appraisal:Superior to present desirable criteria [9]
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 foundations (including piles) on dry land well above flood water elevations. [9]
Operating rating:61.4 tons [55.8 metric tons]
Inventory rating:36.6 tons [33.3 metric tons]
Sufficiency rating:80.0

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
February 201580.0Not deficientGoodVery GoodGood77940
February 201380.0Not deficientGoodVery GoodGood68160
February 201180.0Not deficientGoodVery GoodGood73620
December 200880.0Not deficientVery GoodVery GoodVery Good70440
November 200679.0Not deficientVery GoodVery GoodVery Good63060
November 200479.0Not deficientVery GoodVery GoodVery Good62820
November 200279.0Not deficientVery GoodVery GoodVery Good61380
November 200079.0Not deficientVery GoodVery GoodVery Good71012
20000.0Not applicable---31980
November 19982.0Structurally deficient---52330
November 199667.8Functionally obsoleteSatisfactoryVery GoodGood55957
November 199469.4Functionally obsoleteSatisfactoryVery GoodGood54274
November 199270.1Functionally obsoleteSatisfactoryVery GoodGood47919
December 199070.1Functionally obsoleteSatisfactoryVery GoodGood47919