US Bridges

LA0846 over Lost Creek

Good

Caldwell Parish, Louisiana · 1.78 M W of LA 4 · Structure no. 581108111101811

Built
1983
42 years old
Condition
Good
inspected June 2024
Type
Slab
Concrete
Length
120 ft
6 main spans
Daily traffic
205
2021 count
Owner
State
State Highway Agency

About this bridge

LA0846 over Lost Creek is a concrete slab carrying LA0846 over Lost Creek in Caldwell Parish, Louisiana. It was built in 1983, so it is 42 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 205 vehicles a day, roughly 11% of them trucks, projected to reach 225 by 2041. The structure is 120 ft (36.6 m) long and 32 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesLA0846
CrossesLost Creek
Location1.78 M W of LA 4
RouteState Highway 846
Coordinates32.13372, -92.208
Functional classRural Local

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
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 alignment7: Better than present minimum criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span20 ft (6.1 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic205 (2021)
Projected traffic225 by 2041
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
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 LA0846 over Lost Creek built?

It was built in 1983, making it 42 years old in 2025.

What condition is LA0846 over Lost 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 June 2024.

How much traffic does LA0846 over Lost Creek carry?

About 205 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is LA0846 over Lost Creek?

The structure is 120 ft (36.6 m) long with a longest span of 20 ft (6.1 m) and a deck 32 ft wide.

Who owns LA0846 over Lost Creek?

It is owned by the State Highway Agency.