US Bridges

US0171 over Lewis Creek Relief

Good

Sabine Parish, Louisiana · 2.6 MI N of LA 175 · Structure no. 084300000080682

Built
2005
20 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
35 ft
3 main spans
Daily traffic
4,790
2021 count
Owner
State
State Highway Agency

About this bridge

US0171 over Lewis Creek Relief is a concrete culvert carrying US0171 over Lewis Creek Relief in Sabine Parish, Louisiana. It was built in 2005, so it is 20 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 4,790 vehicles a day, roughly 13% of them trucks, projected to reach 5,269 by 2041. The structure is 35 ft (10.7 m) long and 126 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS0171
CrossesLewis Creek Relief
Location2.6 MI N of LA 175
RouteU.S. Route 171
Coordinates31.59444, -93.53935
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHL 93
Structure length35 ft (10.7 m)
Longest span10 ft (3 m)
Deck width126 ft (38.4 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,790 (2021)
Projected traffic5,269 by 2041
Trucks13%
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US0171 over Lewis Creek Relief built?

It was built in 2005, making it 20 years old in 2025.

What condition is US0171 over Lewis Creek Relief 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 October 2024.

How much traffic does US0171 over Lewis Creek Relief carry?

About 4,790 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is US0171 over Lewis Creek Relief?

The structure is 35 ft (10.7 m) long with a longest span of 10 ft (3 m) and a deck 126 ft wide.

Who owns US0171 over Lewis Creek Relief?

It is owned by the State Highway Agency.