+30.52858, -91.11040
30°31'43" N, 91°06'37" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:LA0408 over CYPRESS BAYOU
Structure number:611702550202081
Location:LA 408
Purpose:Carries highway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:55.1 ft. [16.8 m]
Total length:167.0 ft. [50.9 m]
Roadway width between curbs:34.1 ft. [10.4 m]
Deck width edge-to-edge:39.4 ft. [12.0 m]
Owner:State Highway Agency [01]
Year built:1988
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Prestressed concrete [5]
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: April 2016

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:10,920 [as of 2015]
Truck traffic:9% of total traffic
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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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 determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:89.6

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
April 2016GoodGoodVery GoodGood1092089.6
April 2014GoodGoodVery GoodGood1092089.6
April 2012GoodGoodVery GoodGood1074089.7
March 2010GoodVery GoodVery GoodVery Good1158089.3
March 2008GoodVery GoodVery GoodVery Good1152089.4
March 2006GoodVery GoodVery GoodVery Good1164089.3
March 2004GoodVery GoodVery GoodVery Good1158089.3
March 2002GoodVery GoodVery GoodVery Good1050689.8
March 2000GoodVery GoodVery GoodVery Good1026189.9
March 1998GoodVery GoodVery GoodVery Good1026189.9
March 1996GoodVery GoodVery GoodVery Good1056989.7
March 1994GoodVery GoodVery GoodVery Good887290.4
March 1992GoodVery GoodVery GoodVery Good864390.5