US Bridges

FAS 7510 over Cobb Creek

Good

Washita County, Oklahoma · 1 MI N Colony · Structure no. 202870000000000

Built
1982
43 years old
Condition
Good
inspected January 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
140 ft
3 main spans
Daily traffic
375
2022 count
Owner
County
County Highway Agency

About this bridge

FAS 7510 over Cobb Creek is a steel stringer/multi-beam or girder carrying FAS 7510 over Cobb Creek in Washita 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 375 vehicles a day, roughly 10% of them trucks, projected to reach 600 by 2042. The structure is 140 ft (42.7 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFAS 7510
CrossesCobb Creek
Location1 MI N Colony
RouteCounty Highway 7510
Coordinates35.36276, -98.67632
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 inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69 US tons
Inventory rating41 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length140 ft (42.7 m)
Longest span49 ft (14.9 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic375 (2022)
Projected traffic600 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$648,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 7510 over Cobb Creek built?

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

What condition is FAS 7510 over Cobb 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 January 2023.

How much traffic does FAS 7510 over Cobb Creek carry?

About 375 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is FAS 7510 over Cobb Creek?

The structure is 140 ft (42.7 m) long with a longest span of 49 ft (14.9 m) and a deck 24 ft wide.

Who owns FAS 7510 over Cobb Creek?

It is owned by the County Highway Agency.