US Bridges

Roundhill Rd. over Little Colewa Bayou

Good

West Carroll Parish, Louisiana · 0.3 Mi. W. of LA 2 · Structure no. 056200000050023

Built
2022
3 years old
Condition
Good
inspected March 2023
Type
Slab
Concrete
Length
60 ft
3 main spans
Daily traffic
400
2019 count
Owner
County
County Highway Agency

About this bridge

Roundhill Rd. over Little Colewa Bayou is a concrete slab carrying Roundhill Rd. over Little Colewa Bayou in West Carroll Parish, Louisiana. It was built in 2022, so it is 3 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 400 vehicles a day, roughly 7% of them trucks, projected to reach 440 by 2039. The structure is 60 ft (18.3 m) long and 31 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesRoundhill Rd.
CrossesLittle Colewa Bayou
Location0.3 Mi. W. of LA 2
RouteCounty Highway 0
CountyWest Carroll Parish
StateLouisiana
Coordinates32.8204, -91.46976
Functional classRural Local

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 protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.2 US tons
Inventory rating48.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadGreater than HL 93
Structure length60 ft (18.3 m)
Longest span20 ft (6.1 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2019)
Projected traffic440 by 2039
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Roundhill Rd. over Little Colewa Bayou built?

It was built in 2022, making it 3 years old in 2025.

What condition is Roundhill Rd. over Little Colewa 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 March 2023.

How much traffic does Roundhill Rd. over Little Colewa Bayou carry?

About 400 vehicles per day (2019 count), of which roughly 7% are trucks.

How long is Roundhill Rd. over Little Colewa Bayou?

The structure is 60 ft (18.3 m) long with a longest span of 20 ft (6.1 m) and a deck 31 ft wide.

Who owns Roundhill Rd. over Little Colewa Bayou?

It is owned by the County Highway Agency.