US Bridges

LA0001 over Bayou Jack

Fair

Natchitoches Parish, Louisiana · 0.68 Mi. North of LA 6 · Structure no. 083500343004651

Built
1969
56 years old, rebuilt 1989
Condition
Fair
inspected February 2024
Type
Culvert
Concrete
Length
30 ft
4 main spans
Daily traffic
14,586
2021 count
Owner
State
State Highway Agency

About this bridge

LA0001 over Bayou Jack is a concrete culvert carrying LA0001 over Bayou Jack in Natchitoches Parish, Louisiana. It was built in 1969 and reconstructed in 1989, so it is 56 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 5 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 14,586 vehicles a day, roughly 14% of them trucks, projected to reach 16,044 by 2041. The structure is 30 ft (9.1 m) long and 220 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLA0001
CrossesBayou Jack
Location0.68 Mi. North of LA 6
RouteState Highway 1
CountyNatchitoches Parish
StateLouisiana
Coordinates31.76213, -93.10846
Functional classUrban Other Principal 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 protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 spans4
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span7 ft (2.1 m)
Deck width220 ft (67.1 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,586 (2021)
Projected traffic16,044 by 2041
Trucks14%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 1989.

What condition is LA0001 over Bayou Jack 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 carry?

About 14,586 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is LA0001 over Bayou Jack?

The structure is 30 ft (9.1 m) long with a longest span of 7 ft (2.1 m) and a deck 220 ft wide.

Who owns LA0001 over Bayou Jack?

It is owned by the State Highway Agency.