US Bridges

LA0742 over Bayou Toulouse

Fair

St. Landry Parish, Louisiana · 4.42 MI West of LA 31 · Structure no. 034900123004961

Built
1974
51 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete
Length
95 ft
5 main spans
Daily traffic
1,741
2021 count
Owner
State
State Highway Agency

About this bridge

LA0742 over Bayou Toulouse is a concrete slab carrying LA0742 over Bayou Toulouse in St. Landry Parish, Louisiana. It was built in 1974, so it is 51 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,741 vehicles a day, roughly 12% of them trucks, projected to reach 1,915 by 2041. The structure is 95 ft (29 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLA0742
CrossesBayou Toulouse
Location4.42 MI West of LA 31
RouteState Highway 742
CountySt. Landry Parish
StateLouisiana
Coordinates30.54497, -91.97182
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.9 US tons
Inventory rating33.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans5
Design loadHS 20
Structure length95 ft (29 m)
Longest span19 ft (5.8 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,741 (2021)
Projected traffic1,915 by 2041
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 LA0742 over Bayou Toulouse built?

It was built in 1974, making it 51 years old in 2025.

What condition is LA0742 over Bayou Toulouse in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2023.

How much traffic does LA0742 over Bayou Toulouse carry?

About 1,741 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is LA0742 over Bayou Toulouse?

The structure is 95 ft (29 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.

Who owns LA0742 over Bayou Toulouse?

It is owned by the State Highway Agency.