US Bridges

LA0103 over Drainage Canal

Fair

St. Landry Parish, Louisiana · 2.58 MI North of US 190 · Structure no. 034908490302581

Built
1962
63 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete
Length
60 ft
3 main spans
Daily traffic
1,484
2022 count
Owner
State
State Highway Agency

About this bridge

LA0103 over Drainage Canal is a concrete slab carrying LA0103 over Drainage Canal in St. Landry Parish, Louisiana. It was built in 1962, so it is 63 years old, older 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 1,484 vehicles a day, roughly 12% of them trucks, projected to reach 1,632 by 2042. The structure is 60 ft (18.3 m) long and 30 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesLA0103
CrossesDrainage Canal
Location2.58 MI North of US 190
RouteState Highway 103
CountySt. Landry Parish
StateLouisiana
Coordinates30.55366, -92.21116
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating30 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span20 ft (6.1 m)
Deck width30 ft (9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,484 (2022)
Projected traffic1,632 by 2042
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 LA0103 over Drainage Canal built?

It was built in 1962, making it 63 years old in 2025.

What condition is LA0103 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 May 2023.

How much traffic does LA0103 over Drainage Canal carry?

About 1,484 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is LA0103 over Drainage Canal?

The structure is 60 ft (18.3 m) long with a longest span of 20 ft (6.1 m) and a deck 30 ft wide.

Who owns LA0103 over Drainage Canal?

It is owned by the State Highway Agency.