US Bridges

LA0133 over Drainage Canal

Fair

Richland Parish, Louisiana · 1.6 MI North of LA 132 · Structure no. 054201710206801

Built
1976
49 years old
Condition
Fair
inspected August 2023
Type
Slab
Concrete
Length
120 ft
6 main spans
Daily traffic
975
2021 count
Owner
State
State Highway Agency

About this bridge

LA0133 over Drainage Canal is a concrete slab carrying LA0133 over Drainage Canal in Richland Parish, Louisiana. It was built in 1976, so it is 49 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 975 vehicles a day, roughly 15% of them trucks, projected to reach 1,072 by 2041. The structure is 120 ft (36.6 m) long and 33 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesLA0133
CrossesDrainage Canal
Location1.6 MI North of LA 132
RouteState Highway 133
Coordinates32.34367, -91.9285
Functional classRural Major 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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
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 rating64 US tons
Inventory rating38 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span20 ft (6.1 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic975 (2021)
Projected traffic1,072 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 LA0133 over Drainage Canal built?

It was built in 1976, making it 49 years old in 2025.

What condition is LA0133 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 August 2023.

How much traffic does LA0133 over Drainage Canal carry?

About 975 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is LA0133 over Drainage Canal?

The structure is 120 ft (36.6 m) long with a longest span of 20 ft (6.1 m) and a deck 33 ft wide.

Who owns LA0133 over Drainage Canal?

It is owned by the State Highway Agency.