US Bridges

US0065 over Otter Bayou

Good

East Carroll Parish, Louisiana · 6.9 MI North of LA 580 · Structure no. 051800200812431

Built
1985
40 years old
Condition
Good
inspected February 2023
Type
Slab
Concrete
Length
80 ft
4 main spans
Daily traffic
3,046
2021 count
Owner
State
State Highway Agency

About this bridge

US0065 over Otter Bayou is a concrete slab carrying US0065 over Otter Bayou in East Carroll Parish, Louisiana. It was built in 1985, so it is 40 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 3,046 vehicles a day, roughly 16% of them trucks, projected to reach 3,350 by 2041. The structure is 80 ft (24.4 m) long and 43 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesUS0065
CrossesOtter Bayou
Location6.9 MI North of LA 580
RouteU.S. Route 65
Coordinates32.71457, -91.1802
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 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length80 ft (24.4 m)
Longest span20 ft (6.1 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,046 (2021)
Projected traffic3,350 by 2041
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 US0065 over Otter Bayou built?

It was built in 1985, making it 40 years old in 2025.

What condition is US0065 over Otter 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 2023.

How much traffic does US0065 over Otter Bayou carry?

About 3,046 vehicles per day (2021 count), of which roughly 16% are trucks.

How long is US0065 over Otter Bayou?

The structure is 80 ft (24.4 m) long with a longest span of 20 ft (6.1 m) and a deck 43 ft wide.

Who owns US0065 over Otter Bayou?

It is owned by the State Highway Agency.