US Bridges

US0171 over KCS RR

Good

Sabine Parish, Louisiana · 0.45 Mi. North of LA 483 · Structure no. 084300250400452

Built
2003
22 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
225 ft
3 main spans
Daily traffic
4,790
2021 count
Owner
State
State Highway Agency

About this bridge

US0171 over KCS RR is a prestressed concrete continuous stringer/multi-beam or girder carrying US0171 over KCS RR in Sabine Parish, Louisiana. It was built in 2003, so it is 22 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 15% of them trucks, projected to reach 5,269 by 2041. The structure is 225 ft (68.6 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS0171
CrossesKCS RR
Location0.45 Mi. North of LA 483
RouteU.S. Route 171
Coordinates31.6966, -93.6837
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.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating58.5 US tons
Inventory rating40 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length225 ft (68.6 m)
Longest span75 ft (22.9 m)
Deck width43 ft (13.1 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,790 (2021)
Projected traffic5,269 by 2041
Trucks15%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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 KCS RR built?

It was built in 2003, making it 22 years old in 2025.

What condition is US0171 over KCS RR 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 June 2024.

How much traffic does US0171 over KCS RR carry?

About 4,790 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is US0171 over KCS RR?

The structure is 225 ft (68.6 m) long with a longest span of 75 ft (22.9 m) and a deck 43 ft wide.

Who owns US0171 over KCS RR?

It is owned by the State Highway Agency.