US Bridges

LA0096 over Cypress Bayou

Good

St. Martin Parish, Louisiana · 1.8 MI W of US 90 · Structure no. 035002380200601

Built
1978
47 years old
Condition
Good
inspected November 2024
Type
Slab
Concrete
Length
140 ft
7 main spans
Daily traffic
6,714
2021 count
Owner
State
State Highway Agency

About this bridge

LA0096 over Cypress Bayou is a concrete slab carrying LA0096 over Cypress Bayou in St. Martin Parish, Louisiana. It was built in 1978, so it is 47 years old, older 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 6,714 vehicles a day, roughly 13% of them trucks, projected to reach 7,385 by 2041. The structure is 140 ft (42.7 m) long and 44 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesLA0096
CrossesCypress Bayou
Location1.8 MI W of US 90
RouteState Highway 96
Coordinates30.12884, -91.9128
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64 US tons
Inventory rating38 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length140 ft (42.7 m)
Longest span20 ft (6.1 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,714 (2021)
Projected traffic7,385 by 2041
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0096 over Cypress Bayou built?

It was built in 1978, making it 47 years old in 2025.

What condition is LA0096 over Cypress Bayou 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 November 2024.

How much traffic does LA0096 over Cypress Bayou carry?

About 6,714 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is LA0096 over Cypress Bayou?

The structure is 140 ft (42.7 m) long with a longest span of 20 ft (6.1 m) and a deck 44 ft wide.

Who owns LA0096 over Cypress Bayou?

It is owned by the State Highway Agency.