US Bridges

Cimarron Tp over Cowskin Creek

Good

Pawnee County, Oklahoma · .5 MI W. JCT SH 48 · Structure no. 185570000000000

Built
1973
52 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
189 ft
3 main spans
Daily traffic
8,600
2022 count
Owner
Toll Authority
State Toll Authority

About this bridge

Cimarron Tp over Cowskin Creek is a prestressed concrete stringer/multi-beam or girder carrying Cimarron Tp over Cowskin Creek in Pawnee County, Oklahoma. It was built in 1973, so it is 52 years old, older 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 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 8,600 vehicles a day, roughly 25% of them trucks, projected to reach 13,760 by 2042. The structure is 189 ft (57.7 m) long and 86 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesCimarron Tp
CrossesCowskin Creek
Location.5 MI W. JCT SH 48
RouteU.S. Route 412
CountyPawnee County
StateOklahoma
Coordinates36.21827, -96.40039
Functional classRural Principal Arterial - Other

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 inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.9 US tons
Inventory rating38.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length189 ft (57.7 m)
Longest span63 ft (19.2 m)
Deck width86 ft (26.2 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,600 (2022)
Projected traffic13,760 by 2042
Trucks25%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3.1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Cimarron Tp over Cowskin Creek built?

It was built in 1973, making it 52 years old in 2025.

What condition is Cimarron Tp over Cowskin 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 March 2024.

How much traffic does Cimarron Tp over Cowskin Creek carry?

About 8,600 vehicles per day (2022 count), of which roughly 25% are trucks.

How long is Cimarron Tp over Cowskin Creek?

The structure is 189 ft (57.7 m) long with a longest span of 63 ft (19.2 m) and a deck 86 ft wide.

Who owns Cimarron Tp over Cowskin Creek?

It is owned by the State Toll Authority.