US Bridges

US0171 over Wallace Creek

Fair

De Soto Parish, Louisiana · 5.2 Mi. N. or US 84 · Structure no. 041600000017221

Built
1976
49 years old
Condition
Fair
inspected May 2024
Type
Slab
Concrete
Length
120 ft
6 main spans
Daily traffic
6,150
2021 count
Owner
State
State Highway Agency

About this bridge

US0171 over Wallace Creek is a concrete slab carrying US0171 over Wallace Creek in De Soto Parish, Louisiana. It was built in 1976, so it is 49 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 6,150 vehicles a day, roughly 18% of them trucks, projected to reach 6,765 by 2041. The structure is 120 ft (36.6 m) long and 43 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesUS0171
CrossesWallace Creek
Location5.2 Mi. N. or US 84
RouteU.S. Route 171
Coordinates32.06826, -93.78993
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable 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 spans6
Design loadHS 20
Structure length120 ft (36.6 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 traffic6,150 (2021)
Projected traffic6,765 by 2041
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US0171 over Wallace Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is US0171 over Wallace Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2024.

How much traffic does US0171 over Wallace Creek carry?

About 6,150 vehicles per day (2021 count), of which roughly 18% are trucks.

How long is US0171 over Wallace Creek?

The structure is 120 ft (36.6 m) long with a longest span of 20 ft (6.1 m) and a deck 43 ft wide.

Who owns US0171 over Wallace Creek?

It is owned by the State Highway Agency.