US Bridges

LA0034 over Flat Creek

Good

Winn Parish, Louisiana · 3.56 MI North of LA 126 · Structure no. 086401240203561

Built
1988
37 years old
Condition
Good
inspected August 2023
Type
Slab
Concrete
Length
160 ft
8 main spans
Daily traffic
916
2021 count
Owner
State
State Highway Agency

About this bridge

LA0034 over Flat Creek is a concrete slab carrying LA0034 over Flat Creek in Winn Parish, Louisiana. It was built in 1988, so it is 37 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 916 vehicles a day, roughly 14% of them trucks, projected to reach 1,007 by 2041. The structure is 160 ft (48.8 m) long and 33 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesLA0034
CrossesFlat Creek
Location3.56 MI North of LA 126
RouteState Highway 34
Coordinates32.11394, -92.5423
Functional classRural Major Collector

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 inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating74 US tons
Inventory rating44 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20
Structure length160 ft (48.8 m)
Longest span20 ft (6.1 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic916 (2021)
Projected traffic1,007 by 2041
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0034 over Flat Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is LA0034 over Flat Creek 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 August 2023.

How much traffic does LA0034 over Flat Creek carry?

About 916 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is LA0034 over Flat Creek?

The structure is 160 ft (48.8 m) long with a longest span of 20 ft (6.1 m) and a deck 33 ft wide.

Who owns LA0034 over Flat Creek?

It is owned by the State Highway Agency.