US Bridges

No Data Entered over Bayou Livrogne

Fair

Natchitoches Parish, Louisiana · National Forest Road · Structure no. 080603000002324

Built
1975
50 years old
Condition
Fair
inspected January 2025
Type
Channel Beam
Prestressed Concrete
Length
23 ft
1 main span
Daily traffic
30
1976 count
Owner
Federal
U.S. Forest Service

About this bridge

No Data Entered over Bayou Livrogne is a prestressed concrete channel beam carrying No Data Entered over Bayou Livrogne 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 30 vehicles a day, projected to reach 45 by 2045. The structure is 23 ft (7 m) long and 17 ft wide. If it were closed, the detour would be 13.7 mi (22 km).

CarriesNo Data Entered
CrossesBayou Livrogne
LocationNational Forest Road
RouteFederal Lands Road 360
Coordinates31.47406, -93.04131
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26.5 US tons
Inventory rating19 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadH 20
Structure length23 ft (7 m)
Longest span22 ft (6.7 m)
Deck width17 ft (5.1 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (1976)
Projected traffic45 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13.7 mi (22 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was No Data Entered over Bayou Livrogne built?

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

What condition is No Data Entered over Bayou Livrogne 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 January 2025.

How much traffic does No Data Entered over Bayou Livrogne carry?

About 30 vehicles per day (1976 count).

How long is No Data Entered over Bayou Livrogne?

The structure is 23 ft (7 m) long with a longest span of 22 ft (6.7 m) and a deck 17 ft wide.

Who owns No Data Entered over Bayou Livrogne?

It is owned by the U.S. Forest Service.