US Bridges

LA0001 over State Line Creek

Good

Caddo Parish, Louisiana · 1.7 MI North of LA 168 · Structure no. 040900450308141

Built
1986
39 years old
Condition
Good
inspected January 2024
Type
Slab
Concrete
Length
375 ft
15 main spans
Daily traffic
650
2021 count
Owner
State
State Highway Agency

About this bridge

LA0001 over State Line Creek is a concrete slab carrying LA0001 over State Line Creek in Caddo 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 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 650 vehicles a day, roughly 26% of them trucks, projected to reach 715 by 2041. The structure is 375 ft (114.3 m) long and 43 ft wide. If it were closed, the detour would be 23 mi (37 km).

CarriesLA0001
CrossesState Line Creek
Location1.7 MI North of LA 168
RouteState Highway 1
Coordinates32.99441, -94.0082
Functional classRural Minor Arterial

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 protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable 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 spans15
Design loadHS 20
Structure length375 ft (114.3 m)
Longest span25 ft (7.6 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic650 (2021)
Projected traffic715 by 2041
Trucks26%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 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 LA0001 over State Line Creek built?

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

What condition is LA0001 over State Line Creek 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 January 2024.

How much traffic does LA0001 over State Line Creek carry?

About 650 vehicles per day (2021 count), of which roughly 26% are trucks.

How long is LA0001 over State Line Creek?

The structure is 375 ft (114.3 m) long with a longest span of 25 ft (7.6 m) and a deck 43 ft wide.

Who owns LA0001 over State Line Creek?

It is owned by the State Highway Agency.