US Bridges

I0049 over LA 103-COURTABLEAU Bayou

Good

St. Landry Parish, Louisiana · 1.92 MI South of LA 10 · Structure no. 034904550216772

Built
1987
38 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
968 ft
16 main spans
Daily traffic
13,540
2021 count
Owner
State
State Highway Agency

About this bridge

I0049 over LA 103-COURTABLEAU Bayou is a prestressed concrete stringer/multi-beam or girder carrying I0049 over LA 103-COURTABLEAU Bayou in St. Landry Parish, Louisiana. It was built in 1987, so it is 38 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 13,540 vehicles a day, roughly 22% of them trucks, projected to reach 14,894 by 2041. The structure is 968 ft (295 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI0049
CrossesLA 103-COURTABLEAU Bayou
Location1.92 MI South of LA 10
RouteInterstate 49
Coordinates30.61489, -92.0469
Functional classRural Principal Arterial - Interstate

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 protection8 Very GoodNo problems noted.
Last inspectionFebruary 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 alignment8: Equal to present desirable criteria
Operating rating65 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans16
Design loadHS 20
Structure length968 ft (295 m)
Longest span80 ft (24.4 m)
Deck width55 ft (16.7 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,540 (2021)
Projected traffic14,894 by 2041
Trucks22%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I0049 over LA 103-COURTABLEAU Bayou built?

It was built in 1987, making it 38 years old in 2025.

What condition is I0049 over LA 103-COURTABLEAU 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 February 2024.

How much traffic does I0049 over LA 103-COURTABLEAU Bayou carry?

About 13,540 vehicles per day (2021 count), of which roughly 22% are trucks.

How long is I0049 over LA 103-COURTABLEAU Bayou?

The structure is 968 ft (295 m) long with a longest span of 80 ft (24.4 m) and a deck 55 ft wide.

Who owns I0049 over LA 103-COURTABLEAU Bayou?

It is owned by the State Highway Agency.