US Bridges

Marvin Head RD over Prairion Bayou

Good

Ouachita Parish, Louisiana · 0.17 MI SE of LA 557 · Structure no. 053732207921291

Built
1996
29 years old
Condition
Good
inspected June 2024
Type
Slab
Concrete
Length
76 ft
4 main spans
Daily traffic
463
1979 count
Owner
County
County Highway Agency

About this bridge

Marvin Head RD over Prairion Bayou is a concrete slab carrying Marvin Head RD over Prairion Bayou in Ouachita Parish, Louisiana. It was built in 1996, so it is 29 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 463 vehicles a day, projected to reach 509 by 1999. The structure is 76 ft (23.2 m) long and 27 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesMarvin Head RD
CrossesPrairion Bayou
Location0.17 MI SE of LA 557
RouteCounty Highway 0
CountyOuachita Parish
StateLouisiana
Coordinates32.34706, -92.21579
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating26.1 US tons
Inventory rating20 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length76 ft (23.2 m)
Longest span19 ft (5.8 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic463 (1979)
Projected traffic509 by 1999
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Marvin Head RD over Prairion Bayou built?

It was built in 1996, making it 29 years old in 2025.

What condition is Marvin Head RD over Prairion 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 June 2024.

How much traffic does Marvin Head RD over Prairion Bayou carry?

About 463 vehicles per day (1979 count).

How long is Marvin Head RD over Prairion Bayou?

The structure is 76 ft (23.2 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns Marvin Head RD over Prairion Bayou?

It is owned by the County Highway Agency.