US Bridges

U.S. 270 over Seiling Creek

Good

Dewey County, Oklahoma · 0.3 MI NW JCT U.S. 60 · Structure no. 222870000000000

Built
1989
36 years old, rebuilt 2008
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
77 ft
1 main span
Daily traffic
3,800
2022 count
Owner
State
State Highway Agency

About this bridge

U.S. 270 over Seiling Creek is a prestressed concrete stringer/multi-beam or girder carrying U.S. 270 over Seiling Creek in Dewey County, Oklahoma. It was built in 1989 and reconstructed in 2008, 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 3,800 vehicles a day, roughly 25% of them trucks, projected to reach 6,080 by 2042. The structure is 77 ft (23.5 m) long and 66 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesU.S. 270
CrossesSeiling Creek
Location0.3 MI NW JCT U.S. 60
RouteU.S. Route 270
CountyDewey County
StateOklahoma
Coordinates36.15582, -98.92701
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.9 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length77 ft (23.5 m)
Longest span77 ft (23.5 m)
Deck width66 ft (20.1 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,800 (2022)
Projected traffic6,080 by 2042
Trucks25%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.3 million
NavigationNo navigation control on waterway

Frequently asked questions

When was U.S. 270 over Seiling Creek built?

It was built in 1989, making it 36 years old in 2025. It was reconstructed in 2008.

What condition is U.S. 270 over Seiling 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 October 2024.

How much traffic does U.S. 270 over Seiling Creek carry?

About 3,800 vehicles per day (2022 count), of which roughly 25% are trucks.

How long is U.S. 270 over Seiling Creek?

The structure is 77 ft (23.5 m) long with a longest span of 77 ft (23.5 m) and a deck 66 ft wide.

Who owns U.S. 270 over Seiling Creek?

It is owned by the State Highway Agency.