US Bridges

LA0742 over Little Bayou Teche

PoorPosted for load

St. Landry Parish, Louisiana · 0.5 MI West of LA 31 · Structure no. 034900123003091

Built
1971
54 years old
Condition
Poor
inspected May 2023
Type
Slab
Concrete
Length
114 ft
6 main spans
Daily traffic
1,741
2021 count
Owner
State
State Highway Agency

About this bridge

LA0742 over Little Bayou Teche is a concrete slab carrying LA0742 over Little Bayou Teche in St. Landry Parish, Louisiana. It was built in 1971, so it is 54 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. Its operating status is: posted for load restriction.

It carries about 1,741 vehicles a day, roughly 12% of them trucks, projected to reach 1,915 by 2041. The structure is 114 ft (34.7 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesLA0742
CrossesLittle Bayou Teche
Location0.5 MI West of LA 31
RouteState Highway 742
Coordinates30.53413, -91.99925
Functional classRural Minor Collector

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be 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 alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating21.4 US tons
Inventory rating16.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans6
Design loadHS 20
Structure length114 ft (34.7 m)
Longest span19 ft (5.8 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 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 closed3.7 mi (6 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$556,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0742 over Little Bayou Teche built?

It was built in 1971, making it 54 years old in 2025.

What condition is LA0742 over Little Bayou Teche 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 2023.

How much traffic does LA0742 over Little Bayou Teche carry?

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

How long is LA0742 over Little Bayou Teche?

The structure is 114 ft (34.7 m) long with a longest span of 19 ft (5.8 m) and a deck 35 ft wide.

Who owns LA0742 over Little Bayou Teche?

It is owned by the State Highway Agency.