US Bridges

US0080 over Grass Lake

Fair

Madison Parish, Louisiana · 1.49 MI East of West Int · Structure no. 053300020503491

Built
1954
71 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
38 ft
5 main spans
Daily traffic
2,021
2021 count
Owner
State
State Highway Agency

About this bridge

US0080 over Grass Lake is a concrete culvert carrying US0080 over Grass Lake in Madison Parish, Louisiana. It was built in 1954, so it is 71 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 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 2,021 vehicles a day, roughly 15% of them trucks, projected to reach 2,223 by 2041. The structure is 38 ft (11.6 m) long and 75 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesUS0080
CrossesGrass Lake
Location1.49 MI East of West Int
RouteU.S. Route 80
Coordinates32.38745, -91.1347
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 inspectionMarch 2023
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
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 spans5
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span6 ft (1.8 m)
Deck width75 ft (22.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,021 (2021)
Projected traffic2,223 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 US0080 over Grass Lake built?

It was built in 1954, making it 71 years old in 2025.

What condition is US0080 over Grass 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 March 2023.

How much traffic does US0080 over Grass Lake carry?

About 2,021 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is US0080 over Grass Lake?

The structure is 38 ft (11.6 m) long with a longest span of 6 ft (1.8 m) and a deck 75 ft wide.

Who owns US0080 over Grass Lake?

It is owned by the State Highway Agency.