US Bridges

FAS 6520 over Washita River

Good

Roger Mills County, Oklahoma · 4.0 W 3.0 N Cheyenne · Structure no. 202540000000000

Built
1982
43 years old
Condition
Good
inspected April 2023
Type
Tee Beam
Concrete
Length
105 ft
3 main spans
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

FAS 6520 over Washita River is a concrete tee beam carrying FAS 6520 over Washita River in Roger Mills County, Oklahoma. It was built in 1982, so it is 43 years old, younger than the Oklahoma average of 47.8 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 100 vehicles a day, roughly 15% of them trucks, projected to reach 160 by 2042. The structure is 105 ft (32 m) long and 28 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesFAS 6520
CrossesWashita River
Location4.0 W 3.0 N Cheyenne
RouteCounty Highway 6520
Coordinates35.65379, -99.74859
Functional classRural Major Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating34 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length105 ft (32 m)
Longest span35 ft (10.7 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic160 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$527,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 6520 over Washita River built?

It was built in 1982, making it 43 years old in 2025.

What condition is FAS 6520 over Washita 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 2023.

How much traffic does FAS 6520 over Washita River carry?

About 100 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is FAS 6520 over Washita River?

The structure is 105 ft (32 m) long with a longest span of 35 ft (10.7 m) and a deck 28 ft wide.

Who owns FAS 6520 over Washita River?

It is owned by the County Highway Agency.