US Bridges

LA0494 over Cane River

Good

Natchitoches Parish, Louisiana · Int. LA 6B & LA 494 Natc · Structure no. 083508352000001

Built
2003
22 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
450 ft
6 main spans
Daily traffic
21,589
2021 count
Owner
State
State Highway Agency

About this bridge

LA0494 over Cane River is a prestressed concrete continuous stringer/multi-beam or girder carrying LA0494 over Cane River in Natchitoches Parish, Louisiana. It was built in 2003, so it is 22 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 21,589 vehicles a day, roughly 14% of them trucks, projected to reach 23,747 by 2041. The structure is 450 ft (137.2 m) long and 61 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLA0494
CrossesCane River
LocationInt. LA 6B & LA 494 Natc
RouteState Highway 494
Coordinates31.75414, -93.08709
Functional classUrban Other Principal 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 inspectionApril 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
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.8 US tons
Inventory rating25.4 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length450 ft (137.2 m)
Longest span75 ft (22.9 m)
Deck width61 ft (18.7 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,589 (2021)
Projected traffic23,747 by 2041
Trucks14%
Lanes on structure3
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0494 over Cane River built?

It was built in 2003, making it 22 years old in 2025.

What condition is LA0494 over Cane River 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 April 2024.

How much traffic does LA0494 over Cane River carry?

About 21,589 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is LA0494 over Cane River?

The structure is 450 ft (137.2 m) long with a longest span of 75 ft (22.9 m) and a deck 61 ft wide.

Who owns LA0494 over Cane River?

It is owned by the State Highway Agency.