US Bridges

Fdr 520BRIDGE over Killan Creek

Good

Winn Parish, Louisiana · 5.94 MI from 5 to 23 · Structure no. 080604000033853

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

About this bridge

Fdr 520BRIDGE over Killan Creek is a prestressed concrete slab carrying Fdr 520BRIDGE over Killan Creek in Winn 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 9 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 83 ft (25.3 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 520BRIDGE
CrossesKillan Creek
Location5.94 MI from 5 to 23
RouteFederal Lands Road 520.8
CountyWinn Parish
StateLouisiana
Coordinates31.80601, -92.50489
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation9: Superior to present desirable criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating36.8 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length83 ft (25.3 m)
Longest span40 ft (12.2 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 520BRIDGE over Killan Creek built?

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

What condition is Fdr 520BRIDGE over Killan 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 2023.

How much traffic does Fdr 520BRIDGE over Killan Creek carry?

About 50 vehicles per day (latest count).

How long is Fdr 520BRIDGE over Killan Creek?

The structure is 83 ft (25.3 m) long with a longest span of 40 ft (12.2 m) and a deck 18 ft wide.

Who owns Fdr 520BRIDGE over Killan Creek?

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