US Bridges

LA1133 over Canal

Fair

Calcasieu Parish, Louisiana · 0.7 MI E of LA 108 · Structure no. 071008101800741

Built
1994
31 years old
Condition
Fair
inspected June 2024
Type
Slab
Concrete
Length
38 ft
2 main spans
Daily traffic
632
2023 count
Owner
State
State Highway Agency

About this bridge

LA1133 over Canal is a concrete slab carrying LA1133 over Canal in Calcasieu Parish, Louisiana. It was built in 1994, so it is 31 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 632 vehicles a day, roughly 6% of them trucks, projected to reach 695 by 2043. The structure is 38 ft (11.6 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLA1133
CrossesCanal
Location0.7 MI E of LA 108
RouteState Highway 1133
Coordinates30.14315, -93.35916
Functional classUrban 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
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
ScourScour critical; foundations unstable for calculated scour conditions
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 rating99 US tons
Inventory rating64 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span19 ft (5.8 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic632 (2023)
Projected traffic695 by 2043
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 LA1133 over Canal built?

It was built in 1994, making it 31 years old in 2025.

What condition is LA1133 over 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 LA1133 over Canal carry?

About 632 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is LA1133 over Canal?

The structure is 38 ft (11.6 m) long with a longest span of 19 ft (5.8 m) and a deck 34 ft wide.

Who owns LA1133 over Canal?

It is owned by the State Highway Agency.