US Bridges

LA0108 over Drain

Good

Calcasieu Parish, Louisiana · .06 MI East of LA 1256 · Structure no. 071008101900081

Built
1980
45 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
6,891
2023 count
Owner
State
State Highway Agency

About this bridge

LA0108 over Drain is a concrete culvert carrying LA0108 over Drain in Calcasieu Parish, Louisiana. It was built in 1980, so it is 45 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 6,891 vehicles a day, roughly 10% of them trucks, projected to reach 7,580 by 2043. The structure is 32 ft (9.8 m) long and 131 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesLA0108
CrossesDrain
Location.06 MI East of LA 1256
RouteState Highway 108
Coordinates30.18357, -93.37498
Functional classUrban Minor Arterial

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width131 ft (40 m)
Roadway width83 ft (25.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,891 (2023)
Projected traffic7,580 by 2043
Trucks10%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 LA0108 over Drain built?

It was built in 1980, making it 45 years old in 2025.

What condition is LA0108 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 June 2024.

How much traffic does LA0108 over Drain carry?

About 6,891 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is LA0108 over Drain?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m) and a deck 131 ft wide.

Who owns LA0108 over Drain?

It is owned by the State Highway Agency.