US Bridges

US0080 over Flat River

Good

Bossier Parish, Louisiana · 1.8 MI East of LA 782-2 · Structure no. 040800010306652

Built
2003
22 years old
Condition
Good
inspected November 2023
Type
Slab
Concrete
Length
200 ft
10 main spans
Daily traffic
2,376
2021 count
Owner
State
State Highway Agency

About this bridge

US0080 over Flat River is a concrete slab carrying US0080 over Flat River in Bossier 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 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 2,376 vehicles a day, roughly 8% of them trucks, projected to reach 2,613 by 2041. The structure is 200 ft (61 m) long and 42 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesUS0080
CrossesFlat River
Location1.8 MI East of LA 782-2
RouteU.S. Route 80
Coordinates32.54374, -93.6406
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.9 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20
Structure length200 ft (61 m)
Longest span20 ft (6.1 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,376 (2021)
Projected traffic2,613 by 2041
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US0080 over Flat River built?

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

What condition is US0080 over Flat River 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 November 2023.

How much traffic does US0080 over Flat River carry?

About 2,376 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is US0080 over Flat River?

The structure is 200 ft (61 m) long with a longest span of 20 ft (6.1 m) and a deck 42 ft wide.

Who owns US0080 over Flat River?

It is owned by the State Highway Agency.