US Bridges

LA0146 over Drain

Good

Claiborne Parish, Louisiana · 1.49 Mi. South of US 79 · Structure no. 041400000040403

Built
2014
11 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete
Length
33 ft
4 main spans
Daily traffic
1,360
2021 count
Owner
State
State Highway Agency

About this bridge

LA0146 over Drain is a concrete culvert carrying LA0146 over Drain in Claiborne Parish, Louisiana. It was built in 2014, so it is 11 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,360 vehicles a day, roughly 19% of them trucks, projected to reach 1,496 by 2041. The structure is 33 ft (10.1 m) long and 86 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesLA0146
CrossesDrain
Location1.49 Mi. South of US 79
RouteState Highway 146
Coordinates32.77617, -93.0417
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.9 US tons
Inventory rating32.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span6 ft (1.8 m)
Deck width86 ft (26.2 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,360 (2021)
Projected traffic1,496 by 2041
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed8.7 mi (14 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 LA0146 over Drain built?

It was built in 2014, making it 11 years old in 2025.

What condition is LA0146 over Drain 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 2024.

How much traffic does LA0146 over Drain carry?

About 1,360 vehicles per day (2021 count), of which roughly 19% are trucks.

How long is LA0146 over Drain?

The structure is 33 ft (10.1 m) long with a longest span of 6 ft (1.8 m) and a deck 86 ft wide.

Who owns LA0146 over Drain?

It is owned by the State Highway Agency.