US Bridges

I0049 over Drainage Canal

Fair

St. Landry Parish, Louisiana · 3.38 MI N of LA 10/182 · Structure no. 034904550222251

Built
1986
39 years old
Condition
Fair
inspected June 2024
Type
Slab
Concrete
Length
140 ft
7 main spans
Daily traffic
21,048
2021 count
Owner
State
State Highway Agency

About this bridge

I0049 over Drainage Canal is a concrete slab carrying I0049 over Drainage Canal in St. Landry Parish, Louisiana. It was built in 1986, so it is 39 years old, younger than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 21,048 vehicles a day, roughly 22% of them trucks, projected to reach 23,152 by 2041. The structure is 140 ft (42.7 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI0049
CrossesDrainage Canal
Location3.38 MI N of LA 10/182
RouteInterstate 49
Coordinates30.68508, -92.07753
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length140 ft (42.7 m)
Longest span20 ft (6.1 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,048 (2021)
Projected traffic23,152 by 2041
Trucks22%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 Drainage Canal built?

It was built in 1986, making it 39 years old in 2025.

What condition is I0049 over Drainage Canal in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2024.

How much traffic does I0049 over Drainage Canal carry?

About 21,048 vehicles per day (2021 count), of which roughly 22% are trucks.

How long is I0049 over Drainage Canal?

The structure is 140 ft (42.7 m) long with a longest span of 20 ft (6.1 m) and a deck 43 ft wide.

Who owns I0049 over Drainage Canal?

It is owned by the State Highway Agency.