US Bridges

US0171 over Midkiff Creek

Good

Sabine Parish, Louisiana · 0.98 Mi. North of LA 474 · Structure no. 084300250209181

Built
2004
21 years old
Condition
Good
inspected October 2024
Type
Slab
Concrete
Length
100 ft
5 main spans
Daily traffic
2,726
2021 count
Owner
State
State Highway Agency

About this bridge

US0171 over Midkiff Creek is a concrete slab carrying US0171 over Midkiff Creek in Sabine Parish, Louisiana. It was built in 2004, so it is 21 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 2,726 vehicles a day, roughly 15% of them trucks, projected to reach 2,998 by 2041. The structure is 100 ft (30.5 m) long and 73 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesUS0171
CrossesMidkiff Creek
Location0.98 Mi. North of LA 474
RouteU.S. Route 171
Coordinates31.45726, -93.4566
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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 alignment9: Superior to present desirable criteria
Operating rating51 US tons
Inventory rating39.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span20 ft (6.1 m)
Deck width73 ft (22.3 m)
Roadway width70 ft (21.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,726 (2021)
Projected traffic2,998 by 2041
Trucks15%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US0171 over Midkiff Creek built?

It was built in 2004, making it 21 years old in 2025.

What condition is US0171 over Midkiff 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 October 2024.

How much traffic does US0171 over Midkiff Creek carry?

About 2,726 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is US0171 over Midkiff Creek?

The structure is 100 ft (30.5 m) long with a longest span of 20 ft (6.1 m) and a deck 73 ft wide.

Who owns US0171 over Midkiff Creek?

It is owned by the State Highway Agency.