US Bridges

LA0589 over Deer Lake

Fair

West Carroll Parish, Louisiana · 1.97 MI W of LA 17 · Structure no. 056208620701971

Built
1981
44 years old
Condition
Fair
inspected February 2023
Type
Culvert
Steel
Length
37 ft
4 main spans
Daily traffic
528
2021 count
Owner
State
State Highway Agency

About this bridge

LA0589 over Deer Lake is a steel culvert carrying LA0589 over Deer Lake in West Carroll 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 528 vehicles a day, roughly 15% of them trucks, projected to reach 580 by 2041. The structure is 37 ft (11.3 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLA0589
CrossesDeer Lake
Location1.97 MI W of LA 17
RouteState Highway 589
Coordinates32.80189, -91.4377
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating82.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans4
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span7 ft (2.1 m)
Deck width46 ft (14 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic528 (2021)
Projected traffic580 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 LA0589 over Deer Lake built?

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

What condition is LA0589 over Deer Lake 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 February 2023.

How much traffic does LA0589 over Deer Lake carry?

About 528 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is LA0589 over Deer Lake?

The structure is 37 ft (11.3 m) long with a longest span of 7 ft (2.1 m) and a deck 46 ft wide.

Who owns LA0589 over Deer Lake?

It is owned by the State Highway Agency.