US Bridges

LA0438 over Thomas Creek

Fair

Washington Parish, Louisiana · LA0438 Log Mile 03.10 · Structure no. 625902740303101

Built
1981
44 years old
Condition
Fair
inspected July 2024
Type
Slab
Concrete
Length
140 ft
7 main spans
Daily traffic
1,353
2021 count
Owner
State
State Highway Agency

About this bridge

LA0438 over Thomas Creek is a concrete slab carrying LA0438 over Thomas Creek in Washington Parish, Louisiana. It was built in 1981, so it is 44 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 6 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 1,353 vehicles a day, roughly 13% of them trucks, projected to reach 1,488 by 2041. The structure is 140 ft (42.7 m) long and 37 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesLA0438
CrossesThomas Creek
LocationLA0438 Log Mile 03.10
RouteState Highway 438
Coordinates30.97747, -89.8995
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 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 width37 ft (11.2 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,353 (2021)
Projected traffic1,488 by 2041
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 LA0438 over Thomas Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is LA0438 over Thomas Creek 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 July 2024.

How much traffic does LA0438 over Thomas Creek carry?

About 1,353 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is LA0438 over Thomas Creek?

The structure is 140 ft (42.7 m) long with a longest span of 20 ft (6.1 m) and a deck 37 ft wide.

Who owns LA0438 over Thomas Creek?

It is owned by the State Highway Agency.