US Bridges

LA3280 over Ouachita River

Fair

Ouachita Parish, Louisiana · LA 3280 over Ouachita Riv · Structure no. 053708372200001

Built
2003
22 years old
Condition
Fair
inspected May 2024
Type
Movable - Swing
Steel
Length
952 ft
14 main spans
Daily traffic
8,312
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

LA3280 over Ouachita River is a steel movable - swing carrying LA3280 over Ouachita River in Ouachita Parish, Louisiana. It was built in 2003, so it is 22 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 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 8,312 vehicles a day, roughly 8% of them trucks, projected to reach 9,143 by 2041. The structure is 952 ft (290.2 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLA3280
CrossesOuachita River
LocationLA 3280 over Ouachita Riv
RouteState Highway 3280
CountyOuachita Parish
StateLouisiana
Coordinates32.50102, -92.11848
Functional classUrban Minor 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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating32.5 US tons
Inventory rating25.4 US tons

Structure

Structure typeMovable - Swing
MaterialSteel
DeckOpen grating
Main spans14
Design loadHS 20
Structure length952 ft (290.2 m)
Longest span297 ft (90.5 m)
Deck width38 ft (11.6 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deck12 ft (3.7 m)

Traffic and service

Average daily traffic8,312 (2021)
Projected traffic9,143 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3.7 million
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was LA3280 over Ouachita River built?

It was built in 2003, making it 22 years old in 2025.

What condition is LA3280 over Ouachita River 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 May 2024.

How much traffic does LA3280 over Ouachita River carry?

About 8,312 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is LA3280 over Ouachita River?

The structure is 952 ft (290.2 m) long with a longest span of 297 ft (90.5 m) and a deck 38 ft wide.

Who owns LA3280 over Ouachita River?

It is owned by the City or Municipal Highway Agency.