US Bridges

FAS 6520 over Washita River

Good

Roger Mills County, Oklahoma · 1. E 1. N 7.8 E Reydon · Structure no. 222200000000000

Built
1989
36 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete
Length
45 ft
3 main spans
Daily traffic
25
2022 count
Owner
County
County Highway Agency

About this bridge

FAS 6520 over Washita River is a concrete culvert carrying FAS 6520 over Washita River in Roger Mills County, Oklahoma. It was built in 1989, so it is 36 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 25 vehicles a day, roughly 15% of them trucks, projected to reach 40 by 2042. The structure is 45 ft (13.7 m) long and 28 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesFAS 6520
CrossesWashita River
Location1. E 1. N 7.8 E Reydon
RouteCounty Highway 6520
CountyRoger Mills County
StateOklahoma
Coordinates35.66802, -99.76919
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span17 ft (5.2 m)
Deck width28 ft (8.5 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2022)
Projected traffic40 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$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 6520 over Washita River built?

It was built in 1989, making it 36 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 25 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is FAS 6520 over Washita River?

The structure is 45 ft (13.7 m) long with a longest span of 17 ft (5.2 m) and a deck 28 ft wide.

Who owns FAS 6520 over Washita River?

It is owned by the County Highway Agency.