US Bridges

LA0001 over Bayou Julien

Good

Natchitoches Parish, Louisiana · 1.11 Mi. W of JCT LA 1 · Structure no. 083500343001111

Built
1972
53 years old
Condition
Good
inspected February 2024
Type
Slab
Concrete
Length
100 ft
5 main spans
Daily traffic
4,740
2021 count
Owner
State
State Highway Agency

About this bridge

LA0001 over Bayou Julien is a concrete slab carrying LA0001 over Bayou Julien in Natchitoches Parish, Louisiana. It was built in 1972, so it is 53 years old, older 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 4,740 vehicles a day, roughly 4% of them trucks, projected to reach 5,214 by 2041. The structure is 100 ft (30.5 m) long and 47 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLA0001
CrossesBayou Julien
Location1.11 Mi. W of JCT LA 1
RouteState Highway 1
Coordinates31.72447, -93.0907
Functional classUrban 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 protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79 US tons
Inventory rating48 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span20 ft (6.1 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,740 (2021)
Projected traffic5,214 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Bayou Julien built?

It was built in 1972, making it 53 years old in 2025.

What condition is LA0001 over Bayou Julien 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 February 2024.

How much traffic does LA0001 over Bayou Julien carry?

About 4,740 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is LA0001 over Bayou Julien?

The structure is 100 ft (30.5 m) long with a longest span of 20 ft (6.1 m) and a deck 47 ft wide.

Who owns LA0001 over Bayou Julien?

It is owned by the State Highway Agency.