US Bridges

Little Prairie RD over Muddy Creek

Good

Ascension Parish, Louisiana · 0.08 MI N of LA 42 · Structure no. 610330200905541

Built
2002
23 years old
Condition
Good
inspected January 2023
Type
Slab
Concrete
Length
76 ft
4 main spans
Daily traffic
100
2019 count
Owner
County
County Highway Agency

About this bridge

Little Prairie RD over Muddy Creek is a concrete slab carrying Little Prairie RD over Muddy Creek in Ascension Parish, Louisiana. It was built in 2002, so it is 23 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 100 vehicles a day, projected to reach 110 by 2039. 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).

CarriesLittle Prairie RD
CrossesMuddy Creek
Location0.08 MI N of LA 42
RouteCounty Highway 0
Coordinates30.33347, -90.9298
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 inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating99 US tons
Inventory rating60 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
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 traffic100 (2019)
Projected traffic110 by 2039
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 Little Prairie RD over Muddy Creek built?

It was built in 2002, making it 23 years old in 2025.

What condition is Little Prairie RD over Muddy 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 January 2023.

How much traffic does Little Prairie RD over Muddy Creek carry?

About 100 vehicles per day (2019 count).

How long is Little Prairie RD over Muddy Creek?

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 Little Prairie RD over Muddy Creek?

It is owned by the County Highway Agency.