US Bridges

LA0107 over Rouge Bayou

Good

St. Landry Parish, Louisiana · 5.25 Mi. E. of US 71 · Structure no. 034900000030016

Built
2020
5 years old
Condition
Good
inspected April 2024
Type
Slab
Concrete
Length
120 ft
6 main spans
Daily traffic
1,214
2021 count
Owner
State
State Highway Agency

About this bridge

LA0107 over Rouge Bayou is a concrete slab carrying LA0107 over Rouge Bayou in St. Landry 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 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 1,214 vehicles a day, projected to reach 1,335 by 2041. The structure is 120 ft (36.6 m) long and 35 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Location

Open in Google Maps
CarriesLA0107
CrossesRouge Bayou
Location5.25 Mi. E. of US 71
RouteState Highway 107
CountySt. Landry Parish
StateLouisiana
Coordinates30.82033, -92.00969
Functional classRural Major Collector

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 inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating78.6 US tons
Inventory rating63.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans6
Design loadHL 93
Structure length120 ft (36.6 m)
Longest span20 ft (6.1 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,214 (2021)
Projected traffic1,335 by 2041
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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 LA0107 over Rouge Bayou built?

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

What condition is LA0107 over Rouge 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 LA0107 over Rouge Bayou carry?

About 1,214 vehicles per day (2021 count).

How long is LA0107 over Rouge Bayou?

The structure is 120 ft (36.6 m) long with a longest span of 20 ft (6.1 m) and a deck 35 ft wide.

Who owns LA0107 over Rouge Bayou?

It is owned by the State Highway Agency.