US Bridges

LA0001 over Bayou Jack-O

Fair

Natchitoches Parish, Louisiana · 2.79 Mi. North of LA 6 · Structure no. 083500343006761

Built
1975
50 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete
Length
37 ft
3 main spans
Daily traffic
8,966
2021 count
Owner
State
State Highway Agency

About this bridge

LA0001 over Bayou Jack-O is a concrete culvert carrying LA0001 over Bayou Jack-O in Natchitoches Parish, Louisiana. It was built in 1975, so it is 50 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 8,966 vehicles a day, roughly 15% of them trucks, projected to reach 9,862 by 2041. The structure is 37 ft (11.3 m) long and 150 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLA0001
CrossesBayou Jack-O
Location2.79 Mi. North of LA 6
RouteState Highway 1
Coordinates31.78501, -93.11814
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span12 ft (3.7 m)
Deck width150 ft (45.7 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,966 (2021)
Projected traffic9,862 by 2041
Trucks15%
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 LA0001 over Bayou Jack-O built?

It was built in 1975, making it 50 years old in 2025.

What condition is LA0001 over Bayou Jack-O 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 February 2024.

How much traffic does LA0001 over Bayou Jack-O carry?

About 8,966 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is LA0001 over Bayou Jack-O?

The structure is 37 ft (11.3 m) long with a longest span of 12 ft (3.7 m) and a deck 150 ft wide.

Who owns LA0001 over Bayou Jack-O?

It is owned by the State Highway Agency.