US Bridges

LA0004 over Bills Creek Relief

Good

Caldwell Parish, Louisiana · 3.5 MI W of LA 846 · Structure no. 581100680409081

Built
1976
49 years old
Condition
Good
inspected February 2023
Type
Slab
Concrete
Length
76 ft
4 main spans
Daily traffic
311
2021 count
Owner
State
State Highway Agency

About this bridge

LA0004 over Bills Creek Relief is a concrete slab carrying LA0004 over Bills Creek Relief in Caldwell Parish, Louisiana. It was built in 1976, so it is 49 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 311 vehicles a day, roughly 21% of them trucks, projected to reach 342 by 2041. The structure is 76 ft (23.2 m) long and 31 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesLA0004
CrossesBills Creek Relief
Location3.5 MI W of LA 846
RouteState Highway 4
Coordinates32.17853, -92.2022
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 protection8 Very GoodNo problems noted.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 rating72 US tons
Inventory rating43 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length76 ft (23.2 m)
Longest span19 ft (5.8 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic311 (2021)
Projected traffic342 by 2041
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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 LA0004 over Bills Creek Relief built?

It was built in 1976, making it 49 years old in 2025.

What condition is LA0004 over Bills Creek Relief 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 February 2023.

How much traffic does LA0004 over Bills Creek Relief carry?

About 311 vehicles per day (2021 count), of which roughly 21% are trucks.

How long is LA0004 over Bills Creek Relief?

The structure is 76 ft (23.2 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.

Who owns LA0004 over Bills Creek Relief?

It is owned by the State Highway Agency.