US Bridges

US0171 over West Anacoco Creek

Good

Vernon Parish, Louisiana · 11.6 MI North of LA 8 · Structure no. 085800250113172

Built
1994
31 years old
Condition
Good
inspected February 2024
Type
Slab
Concrete
Length
280 ft
14 main spans
Daily traffic
6,952
2021 count
Owner
State
State Highway Agency

About this bridge

US0171 over West Anacoco Creek is a concrete slab carrying US0171 over West Anacoco Creek in Vernon Parish, Louisiana. It was built in 1994, so it is 31 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 6,952 vehicles a day, roughly 15% of them trucks, projected to reach 7,647 by 2041. The structure is 280 ft (85.3 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS0171
CrossesWest Anacoco Creek
Location11.6 MI North of LA 8
RouteU.S. Route 171
Coordinates31.29991, -93.36793
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 geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating48 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans14
Design loadHS 20
Structure length280 ft (85.3 m)
Longest span20 ft (6.1 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,952 (2021)
Projected traffic7,647 by 2041
Trucks15%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US0171 over West Anacoco Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is US0171 over West Anacoco Creek 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 US0171 over West Anacoco Creek carry?

About 6,952 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is US0171 over West Anacoco Creek?

The structure is 280 ft (85.3 m) long with a longest span of 20 ft (6.1 m) and a deck 43 ft wide.

Who owns US0171 over West Anacoco Creek?

It is owned by the State Highway Agency.