US Bridges

Main ST in Natchez over Bayou Natchez

FairPosted for load

Natchitoches Parish, Louisiana · 0.09 Miles West of LA 1 · Structure no. 083531403930281

Built
1984
41 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
242 ft
5 main spans
Daily traffic
732
2022 count
Owner
County
County Highway Agency

About this bridge

Main ST in Natchez over Bayou Natchez is a prestressed concrete continuous stringer/multi-beam or girder carrying Main ST in Natchez over Bayou Natchez in Natchitoches Parish, Louisiana. It was built in 1984, so it is 41 years old, younger 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. Its operating status is: posted for load restriction.

It carries about 732 vehicles a day, projected to reach 805 by 2042. The structure is 242 ft (73.8 m) long and 33 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesMain ST in Natchez
CrossesBayou Natchez
Location0.09 Miles West of LA 1
RouteCounty Highway 0
Coordinates31.67282, -93.0469
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating67.1 US tons
Inventory rating45.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length242 ft (73.8 m)
Longest span48 ft (14.6 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic732 (2022)
Projected traffic805 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Main ST in Natchez over Bayou Natchez built?

It was built in 1984, making it 41 years old in 2025.

What condition is Main ST in Natchez over Bayou Natchez 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 2023.

How much traffic does Main ST in Natchez over Bayou Natchez carry?

About 732 vehicles per day (2022 count).

How long is Main ST in Natchez over Bayou Natchez?

The structure is 242 ft (73.8 m) long with a longest span of 48 ft (14.6 m) and a deck 33 ft wide.

Who owns Main ST in Natchez over Bayou Natchez?

It is owned by the County Highway Agency.