US Bridges

NFSR 513 over Saline Bayou

Good

Natchitoches Parish, Louisiana · National Forest Road · Structure no. 080604000003109

Built
2003
22 years old
Condition
Good
inspected January 2021
Type
Slab
Concrete
Length
133 ft
7 main spans
Daily traffic
30
2003 count
Owner
Federal
U.S. Forest Service

About this bridge

NFSR 513 over Saline Bayou is a concrete slab carrying NFSR 513 over Saline Bayou 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 30 vehicles a day, projected to reach 45 by 2045. The structure is 133 ft (40.5 m) long and 27 ft wide. If it were closed, the detour would be 18.6 mi (30 km).

CarriesNFSR 513
CrossesSaline Bayou
LocationNational Forest Road
RouteFederal Lands Road 513
Coordinates32.08362, -92.90524
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2021
Inspection intervalevery 48 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 geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30 US tons
Inventory rating20 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckOther
Main spans7
Design loadHS 20
Structure length133 ft (40.5 m)
Longest span19 ft (5.8 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2003)
Projected traffic45 by 2045
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18.6 mi (30 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 NFSR 513 over Saline Bayou built?

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

What condition is NFSR 513 over Saline Bayou 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 January 2021.

How much traffic does NFSR 513 over Saline Bayou carry?

About 30 vehicles per day (2003 count).

How long is NFSR 513 over Saline Bayou?

The structure is 133 ft (40.5 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns NFSR 513 over Saline Bayou?

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