US Bridges

LA0122 over Drain

Fair

Grant Parish, Louisiana · 4.96 Mi. East of US 71 · Structure no. 082201290105531

Built
1993
32 years old
Condition
Fair
inspected August 2024
Type
Culvert
Steel
Length
26 ft
3 main spans
Daily traffic
683
2021 count
Owner
State
State Highway Agency

About this bridge

LA0122 over Drain is a steel culvert carrying LA0122 over Drain in Grant Parish, Louisiana. It was built in 1993, so it is 32 years old, younger 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 5 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 683 vehicles a day, roughly 14% of them trucks, projected to reach 751 by 2041. The structure is 26 ft (7.9 m) long and 96 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesLA0122
CrossesDrain
Location4.96 Mi. East of US 71
RouteState Highway 122
Coordinates31.69245, -92.8071
Functional classRural Major 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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating107.1 US tons
Inventory rating82.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span7 ft (2.1 m)
Deck width96 ft (29.3 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic683 (2021)
Projected traffic751 by 2041
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 LA0122 over Drain built?

It was built in 1993, making it 32 years old in 2025.

What condition is LA0122 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 August 2024.

How much traffic does LA0122 over Drain carry?

About 683 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is LA0122 over Drain?

The structure is 26 ft (7.9 m) long with a longest span of 7 ft (2.1 m) and a deck 96 ft wide.

Who owns LA0122 over Drain?

It is owned by the State Highway Agency.