US Bridges

LA0015 over Bayou Lafouche

Poor

Ouachita Parish, Louisiana · 5.4 MI East of LA 841 · Structure no. 053700261000001

Built
1953
72 years old
Condition
Poor
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
482 ft
10 main spans
Daily traffic
2,382
2021 count
Owner
State
State Highway Agency

About this bridge

LA0015 over Bayou Lafouche is a steel stringer/multi-beam or girder carrying LA0015 over Bayou Lafouche in Ouachita Parish, Louisiana. It was built in 1953, so it is 72 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 2,382 vehicles a day, roughly 16% of them trucks, projected to reach 2,620 by 2041. The structure is 482 ft (146.9 m) long and 31 ft wide. If it were closed, the detour would be 26.1 mi (42 km).

CarriesLA0015
CrossesBayou Lafouche
Location5.4 MI East of LA 841
RouteState Highway 15
Coordinates32.39767, -91.99284
Functional classRural Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.4 US tons
Inventory rating38.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20
Structure length482 ft (146.9 m)
Longest span60 ft (18.3 m)
Deck width31 ft (9.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,382 (2021)
Projected traffic2,620 by 2041
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.1 mi (42 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0015 over Bayou Lafouche built?

It was built in 1953, making it 72 years old in 2025.

What condition is LA0015 over Bayou Lafouche in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.

How much traffic does LA0015 over Bayou Lafouche carry?

About 2,382 vehicles per day (2021 count), of which roughly 16% are trucks.

How long is LA0015 over Bayou Lafouche?

The structure is 482 ft (146.9 m) long with a longest span of 60 ft (18.3 m) and a deck 31 ft wide.

Who owns LA0015 over Bayou Lafouche?

It is owned by the State Highway Agency.