US Bridges

LA3149 over Drain

Fair

Evangeline Parish, Louisiana · .01 MI North of LA 104 · Structure no. 032008204200011

Built
1932
93 years old
Condition
Fair
inspected May 2024
Type
Culvert
Concrete
Length
33 ft
5 main spans
Daily traffic
1,756
2021 count
Owner
State
State Highway Agency

About this bridge

LA3149 over Drain is a concrete culvert carrying LA3149 over Drain in Evangeline Parish, Louisiana. It was built in 1932, so it is 93 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 1,756 vehicles a day, roughly 12% of them trucks, projected to reach 1,931 by 2041. The structure is 33 ft (10.1 m) long and 40 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesLA3149
CrossesDrain
Location.01 MI North of LA 104
RouteState Highway 3149
Coordinates30.64121, -92.4199
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.2 US tons
Inventory rating37.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans5
Design loadH 15
Structure length33 ft (10.1 m)
Longest span6 ft (1.8 m)
Deck width40 ft (12.2 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,756 (2021)
Projected traffic1,931 by 2041
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 LA3149 over Drain built?

It was built in 1932, making it 93 years old in 2025.

What condition is LA3149 over Drain 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 May 2024.

How much traffic does LA3149 over Drain carry?

About 1,756 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is LA3149 over Drain?

The structure is 33 ft (10.1 m) long with a longest span of 6 ft (1.8 m) and a deck 40 ft wide.

Who owns LA3149 over Drain?

It is owned by the State Highway Agency.