US Bridges

US0084 over Cross Bayou

Good

Concordia Parish, Louisiana · 2.6 MI East of LA 566 · Structure no. 581500220711891

Built
1977
48 years old
Condition
Good
inspected February 2024
Type
Slab
Concrete
Length
180 ft
9 main spans
Daily traffic
6,163
2021 count
Owner
State
State Highway Agency

About this bridge

US0084 over Cross Bayou is a concrete slab carrying US0084 over Cross Bayou in Concordia Parish, Louisiana. It was built in 1977, so it is 48 years old, older 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 6,163 vehicles a day, roughly 20% of them trucks, projected to reach 6,779 by 2041. The structure is 180 ft (54.9 m) long and 43 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

CarriesUS0084
CrossesCross Bayou
Location2.6 MI East of LA 566
RouteU.S. Route 84
Coordinates31.60806, -91.6222
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating61 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length180 ft (54.9 m)
Longest span20 ft (6.1 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,163 (2021)
Projected traffic6,779 by 2041
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US0084 over Cross Bayou built?

It was built in 1977, making it 48 years old in 2025.

What condition is US0084 over Cross Bayou 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 February 2024.

How much traffic does US0084 over Cross Bayou carry?

About 6,163 vehicles per day (2021 count), of which roughly 20% are trucks.

How long is US0084 over Cross Bayou?

The structure is 180 ft (54.9 m) long with a longest span of 20 ft (6.1 m) and a deck 43 ft wide.

Who owns US0084 over Cross Bayou?

It is owned by the State Highway Agency.