US Bridges

LA1153 over Calcasieu River Trib

Good

Allen Parish, Louisiana · 1.0 MI N of US 165 · Structure no. 070203710101051

Built
2003
22 years old
Condition
Good
inspected October 2023
Type
Slab
Concrete
Length
79 ft
4 main spans
Daily traffic
1,822
2021 count
Owner
State
State Highway Agency

About this bridge

LA1153 over Calcasieu River Trib is a concrete slab carrying LA1153 over Calcasieu River Trib in Allen Parish, Louisiana. It was built in 2003, so it is 22 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 1,822 vehicles a day, roughly 6% of them trucks, projected to reach 2,004 by 2041. The structure is 79 ft (24.1 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLA1153
CrossesCalcasieu River Trib
Location1.0 MI N of US 165
RouteState Highway 1153
Coordinates30.84318, -92.65747
Functional classUrban Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating87 US tons
Inventory rating52 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length79 ft (24.1 m)
Longest span20 ft (6.1 m)
Deck width42 ft (12.9 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,822 (2021)
Projected traffic2,004 by 2041
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was LA1153 over Calcasieu River Trib built?

It was built in 2003, making it 22 years old in 2025.

What condition is LA1153 over Calcasieu River Trib 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 October 2023.

How much traffic does LA1153 over Calcasieu River Trib carry?

About 1,822 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is LA1153 over Calcasieu River Trib?

The structure is 79 ft (24.1 m) long with a longest span of 20 ft (6.1 m) and a deck 42 ft wide.

Who owns LA1153 over Calcasieu River Trib?

It is owned by the State Highway Agency.