US Bridges

LA0103 over Bayou Carron

Good

St. Landry Parish, Louisiana · 1.45 MI East of I-49 · Structure no. 034903800301451

Built
2004
21 years old
Condition
Good
inspected May 2024
Type
Slab
Concrete
Length
180 ft
9 main spans
Daily traffic
2,097
2021 count
Owner
State
State Highway Agency

About this bridge

LA0103 over Bayou Carron is a concrete slab carrying LA0103 over Bayou Carron in St. Landry Parish, Louisiana. It was built in 2004, so it is 21 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 2,097 vehicles a day, roughly 12% of them trucks, projected to reach 2,306 by 2041. The structure is 180 ft (54.9 m) long and 37 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesLA0103
CrossesBayou Carron
Location1.45 MI East of I-49
RouteState Highway 103
Coordinates30.6152, -92.03584
Functional classRural Minor Collector

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 inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating88 US tons
Inventory rating52 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length180 ft (54.9 m)
Longest span20 ft (6.1 m)
Deck width37 ft (11.4 m)
Roadway width35 ft (10.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,097 (2021)
Projected traffic2,306 by 2041
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 LA0103 over Bayou Carron built?

It was built in 2004, making it 21 years old in 2025.

What condition is LA0103 over Bayou Carron 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 May 2024.

How much traffic does LA0103 over Bayou Carron carry?

About 2,097 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is LA0103 over Bayou Carron?

The structure is 180 ft (54.9 m) long with a longest span of 20 ft (6.1 m) and a deck 37 ft wide.

Who owns LA0103 over Bayou Carron?

It is owned by the State Highway Agency.