US Bridges

Fdr 570 over Ragan Creek

Good

Natchitoches Parish, Louisiana · National Forest Road · Structure no. 080604000033780

Built
2023
2 years old
Condition
Good
inspected February 2025
Type
Slab
Prestressed Concrete
Length
51 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Fdr 570 over Ragan Creek is a prestressed concrete slab carrying Fdr 570 over Ragan Creek in Natchitoches Parish, Louisiana. It was built in 2023, so it is 2 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, projected to reach 75 by 2045. The structure is 51 ft (15.4 m) long and 18 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

Location

Open in Google Maps
CarriesFdr 570
CrossesRagan Creek
LocationNational Forest Road
RouteFederal Lands Road 570.1
CountyNatchitoches Parish
StateLouisiana
Coordinates32.05394, -92.93646
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.2 US tons
Inventory rating41.4 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length51 ft (15.4 m)
Longest span47 ft (14.3 m)
Deck width18 ft (5.5 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed620.7 mi (999 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 Fdr 570 over Ragan Creek built?

It was built in 2023, making it 2 years old in 2025.

What condition is Fdr 570 over Ragan Creek 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 February 2025.

How much traffic does Fdr 570 over Ragan Creek carry?

About 50 vehicles per day (latest count).

How long is Fdr 570 over Ragan Creek?

The structure is 51 ft (15.4 m) long with a longest span of 47 ft (14.3 m) and a deck 18 ft wide.

Who owns Fdr 570 over Ragan Creek?

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