US Bridges

U.S. 270 over N. Canadian River

Fair

Pottawatomie County, Oklahoma · 3.9 MI S JCT SH 3 · Structure no. 153880000000000

Built
1961
64 years old, rebuilt 2014
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
803 ft
8 main spans
Daily traffic
11,700
2022 count
Owner
State
State Highway Agency

About this bridge

U.S. 270 over N. Canadian River is a steel continuous stringer/multi-beam or girder carrying U.S. 270 over N. Canadian River in Pottawatomie County, Oklahoma. It was built in 1961 and reconstructed in 2014, so it is 64 years old, older than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 11,700 vehicles a day, roughly 16% of them trucks, projected to reach 18,720 by 2042. The structure is 803 ft (244.8 m) long and 62 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesU.S. 270
CrossesN. Canadian River
Location3.9 MI S JCT SH 3
RouteU.S. Route 270
CountyPottawatomie County
StateOklahoma
Coordinates35.31545, -96.94341
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.5 US tons
Inventory rating30.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans8
Design loadH 20
Structure length803 ft (244.8 m)
Longest span100 ft (30.5 m)
Deck width62 ft (18.9 m)
Roadway width57 ft (17.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,700 (2022)
Projected traffic18,720 by 2042
Trucks16%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

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$7.6 million
NavigationNo navigation control on waterway

Frequently asked questions

When was U.S. 270 over N. Canadian River built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2014.

What condition is U.S. 270 over N. Canadian River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2024.

How much traffic does U.S. 270 over N. Canadian River carry?

About 11,700 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is U.S. 270 over N. Canadian River?

The structure is 803 ft (244.8 m) long with a longest span of 100 ft (30.5 m) and a deck 62 ft wide.

Who owns U.S. 270 over N. Canadian River?

It is owned by the State Highway Agency.