US Bridges

LA0012 over Cowpen Bayou

Good

Beauregard Parish, Louisiana · 3.3 MI W of US 171 · Structure no. 070600000070600

Built
2020
5 years old
Condition
Good
inspected April 2024
Type
Slab
Prestressed Concrete
Length
100 ft
5 main spans
Daily traffic
3,424
2023 count
Owner
State
State Highway Agency

About this bridge

LA0012 over Cowpen Bayou is a prestressed concrete slab carrying LA0012 over Cowpen Bayou in Beauregard Parish, Louisiana. It was built in 2020, so it is 5 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 3,424 vehicles a day, projected to reach 3,766 by 2043. The structure is 100 ft (30.5 m) long and 34 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

Location

Open in Google Maps
CarriesLA0012
CrossesCowpen Bayou
Location3.3 MI W of US 171
RouteState Highway 12
CountyBeauregard Parish
StateLouisiana
Coordinates30.49889, -93.28625
Functional classRural Minor Arterial

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 inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.6 US tons
Inventory rating60.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans5
Design loadGreater than HL 93
Structure length100 ft (30.5 m)
Longest span20 ft (6.1 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,424 (2023)
Projected traffic3,766 by 2043
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 km)
TollOn a free road
National Highway SystemNo

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 LA0012 over Cowpen Bayou built?

It was built in 2020, making it 5 years old in 2025.

What condition is LA0012 over Cowpen Bayou 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 April 2024.

How much traffic does LA0012 over Cowpen Bayou carry?

About 3,424 vehicles per day (2023 count).

How long is LA0012 over Cowpen Bayou?

The structure is 100 ft (30.5 m) long with a longest span of 20 ft (6.1 m) and a deck 34 ft wide.

Who owns LA0012 over Cowpen Bayou?

It is owned by the State Highway Agency.