US Bridges

US0171 over Bayou Zourie

Good

Vernon Parish, Louisiana · 1.1 North of LA 10 · Structure no. 085800000080592

Built
2012
13 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
220 ft
4 main spans
Daily traffic
12,466
2021 count
Owner
State
State Highway Agency

About this bridge

US0171 over Bayou Zourie is a prestressed concrete continuous stringer/multi-beam or girder carrying US0171 over Bayou Zourie in Vernon Parish, Louisiana. It was built in 2012, so it is 13 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 12,466 vehicles a day, roughly 15% of them trucks, projected to reach 13,712 by 2041. The structure is 220 ft (67.1 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS0171
CrossesBayou Zourie
Location1.1 North of LA 10
RouteU.S. Route 171
Coordinates31.04362, -93.2754
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating46.4 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length220 ft (67.1 m)
Longest span55 ft (16.8 m)
Deck width41 ft (12.6 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,466 (2021)
Projected traffic13,712 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US0171 over Bayou Zourie built?

It was built in 2012, making it 13 years old in 2025.

What condition is US0171 over Bayou Zourie 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 Bayou Zourie carry?

About 12,466 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is US0171 over Bayou Zourie?

The structure is 220 ft (67.1 m) long with a longest span of 55 ft (16.8 m) and a deck 41 ft wide.

Who owns US0171 over Bayou Zourie?

It is owned by the State Highway Agency.