+30.57533, -91.16701
30°34'31" N, 91°10'01" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:LA3006 over CYPRESS BAYOU
Structure number:611708173300201
Purpose:Carries highway over waterway
Route classification:Collector (Urban) [17]
Length of largest span:20.0 ft. [6.1 m]
Total length:80.1 ft. [24.4 m]
Roadway width between curbs:24.3 ft. [7.4 m]
Deck width edge-to-edge:29.5 ft. [9.0 m]
Owner:State Highway Agency [01]
Year built:1957
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 13.5 / H 15 [2]
Number of main spans:4
Main spans material:Concrete [1]
Main spans design:Slab [01]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: September 2015 

Status:Open, no restriction [A]
Average daily traffic:7,900 [as of 2015]
Truck traffic:4% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:42.6 tons [38.7 metric tons]
Inventory rating:25.7 tons [23.4 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:66.5
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$412,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
September 201566.5Functionally obsoleteGoodGoodGood7900
October 201366.5Functionally obsoleteGoodGoodGood7900
December 201167.6Functionally obsoleteGoodGoodGood7800
January 201068.1Functionally obsoleteGoodGoodGood10100
January 200867.9Functionally obsoleteGoodVery GoodVery Good10900
January 200667.9Functionally obsoleteGoodVery GoodVery Good11100
January 200467.9Functionally obsoleteGoodVery GoodVery Good10800
January 200268.0Functionally obsoleteGoodVery GoodVery Good10413
January 200068.2Functionally obsoleteGoodVery GoodVery Good9479
January 199869.2Functionally obsoleteGoodVery GoodVery Good9479
January 199669.0Functionally obsoleteGoodVery GoodVery Good9589
January 199469.6Functionally obsoleteGoodVery GoodVery Good6942
January 199269.4Functionally obsoleteGoodVery GoodVery Good8172