US Bridges

LA3249 over I-20

Fair

Ouachita Parish, Louisiana · 3.2 MI East of LA 546 · Structure no. 053704510613171

Built
1963
62 years old, rebuilt 2011
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
262 ft
4 main spans
Daily traffic
21,250
2021 count
Owner
State
State Highway Agency

About this bridge

LA3249 over I-20 is a steel stringer/multi-beam or girder carrying LA3249 over I-20 in Ouachita Parish, Louisiana. It was built in 1963 and reconstructed in 2011, so it is 62 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 21,250 vehicles a day, roughly 9% of them trucks, projected to reach 23,375 by 2041. The structure is 262 ft (79.9 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLA3249
CrossesI-20
Location3.2 MI East of LA 546
RouteState Highway 3249
Coordinates32.51056, -92.1919
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42 US tons
Inventory rating25 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length262 ft (79.9 m)
Longest span85 ft (25.9 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,250 (2021)
Projected traffic23,375 by 2041
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was LA3249 over I-20 built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 2011.

What condition is LA3249 over I-20 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 September 2024.

How much traffic does LA3249 over I-20 carry?

About 21,250 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is LA3249 over I-20?

The structure is 262 ft (79.9 m) long with a longest span of 85 ft (25.9 m) and a deck 31 ft wide.

Who owns LA3249 over I-20?

It is owned by the State Highway Agency.