US Bridges

U.S. 270 over Six Mile Creek

Good

Canadian County, Oklahoma · 13.2 Mi. E. Blaine Cl · Structure no. 213070000000000

Built
1986
39 years old, rebuilt 2024
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
135 ft
3 main spans
Daily traffic
1,700
2022 count
Owner
State
State Highway Agency

About this bridge

U.S. 270 over Six Mile Creek is a steel stringer/multi-beam or girder carrying U.S. 270 over Six Mile Creek in Canadian County, Oklahoma. It was built in 1986 and reconstructed in 2024, so it is 39 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 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 1,700 vehicles a day, roughly 15% of them trucks, projected to reach 2,720 by 2042. The structure is 135 ft (41.3 m) long and 42 ft wide. If it were closed, the detour would be 18 mi (29 km).

CarriesU.S. 270
CrossesSix Mile Creek
Location13.2 Mi. E. Blaine Cl
RouteU.S. Route 270
Coordinates35.57468, -98.11631
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating45.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length135 ft (41.3 m)
Longest span45 ft (13.7 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,700 (2022)
Projected traffic2,720 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$1.7 million
NavigationNo navigation control on waterway

Frequently asked questions

When was U.S. 270 over Six Mile Creek built?

It was built in 1986, making it 39 years old in 2025. It was reconstructed in 2024.

What condition is U.S. 270 over Six Mile 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 November 2024.

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

About 1,700 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is U.S. 270 over Six Mile Creek?

The structure is 135 ft (41.3 m) long with a longest span of 45 ft (13.7 m) and a deck 42 ft wide.

Who owns U.S. 270 over Six Mile Creek?

It is owned by the State Highway Agency.