US Bridges

LA0024 over Bayou Terrebonne

Good

Terrebonne Parish, Louisiana · 0.01 M W of LA 659 · Structure no. 025500650401259

Built
1990
35 years old
Condition
Good
inspected May 2024
Type
Culvert
Steel
Length
27 ft
3 main spans
Daily traffic
258
2015 count
Owner
State
State Highway Agency

About this bridge

LA0024 over Bayou Terrebonne is a steel culvert carrying LA0024 over Bayou Terrebonne in Terrebonne Parish, Louisiana. It was built in 1990, so it is 35 years old, younger than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 258 vehicles a day, projected to reach 283 by 2035. The structure is 27 ft (8.2 m) long and 100 ft wide.

CarriesLA0024
CrossesBayou Terrebonne
Location0.01 M W of LA 659
RouteState Highway 24
Coordinates29.66833, -90.7738
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating82.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span8 ft (2.4 m)
Deck width100 ft (30.5 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic258 (2015)
Projected traffic283 by 2035
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0024 over Bayou Terrebonne built?

It was built in 1990, making it 35 years old in 2025.

What condition is LA0024 over Bayou Terrebonne in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2024.

How much traffic does LA0024 over Bayou Terrebonne carry?

About 258 vehicles per day (2015 count).

How long is LA0024 over Bayou Terrebonne?

The structure is 27 ft (8.2 m) long with a longest span of 8 ft (2.4 m) and a deck 100 ft wide.

Who owns LA0024 over Bayou Terrebonne?

It is owned by the State Highway Agency.