US Bridges

US0165 over Little Black Bay

Good

Caldwell Parish, Louisiana · 1.9 MI South of LA 844 · Structure no. 581100150604292

Built
1945
80 years old, rebuilt 2004
Condition
Good
inspected December 2024
Type
Tee Beam
Concrete
Length
96 ft
3 main spans
Daily traffic
6,071
2022 count
Owner
State
State Highway Agency

About this bridge

US0165 over Little Black Bay is a concrete tee beam carrying US0165 over Little Black Bay in Caldwell Parish, Louisiana. It was built in 1945 and reconstructed in 2004, so it is 80 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 6,071 vehicles a day, roughly 20% of them trucks, projected to reach 6,678 by 2042. The structure is 96 ft (29.3 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS0165
CrossesLittle Black Bay
Location1.9 MI South of LA 844
RouteU.S. Route 165
Coordinates31.97908, -92.1612
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating32 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length96 ft (29.3 m)
Longest span32 ft (9.8 m)
Deck width52 ft (15.8 m)
Roadway width49 ft (15 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,071 (2022)
Projected traffic6,678 by 2042
Trucks20%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 US0165 over Little Black Bay built?

It was built in 1945, making it 80 years old in 2025. It was reconstructed in 2004.

What condition is US0165 over Little Black Bay 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 December 2024.

How much traffic does US0165 over Little Black Bay carry?

About 6,071 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is US0165 over Little Black Bay?

The structure is 96 ft (29.3 m) long with a longest span of 32 ft (9.8 m) and a deck 52 ft wide.

Who owns US0165 over Little Black Bay?

It is owned by the State Highway Agency.