US Bridges

S.H. 270 over N. Canadian River

Fair

Pottawatomie County, Oklahoma · 0.4 MI E Dale · Structure no. 205760000000000

Built
1983
42 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
801 ft
8 main spans
Daily traffic
3,600
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 270 over N. Canadian River is a prestressed concrete stringer/multi-beam or girder carrying S.H. 270 over N. Canadian River in Pottawatomie County, Oklahoma. It was built in 1983, so it is 42 years old, younger 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 3,600 vehicles a day, roughly 15% of them trucks, projected to reach 5,760 by 2042. The structure is 801 ft (244.1 m) long and 42 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesS.H. 270
CrossesN. Canadian River
Location0.4 MI E Dale
RouteState Highway 270
CountyPottawatomie County
StateOklahoma
Coordinates35.39103, -97.04064
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
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
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.5 US tons
Inventory rating37 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20
Structure length801 ft (244.1 m)
Longest span100 ft (30.5 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,600 (2022)
Projected traffic5,760 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$4.8 million
NavigationNo navigation control on waterway

Frequently asked questions

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

It was built in 1983, making it 42 years old in 2025.

What condition is S.H. 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 S.H. 270 over N. Canadian River carry?

About 3,600 vehicles per day (2022 count), of which roughly 15% are trucks.

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

The structure is 801 ft (244.1 m) long with a longest span of 100 ft (30.5 m) and a deck 42 ft wide.

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

It is owned by the State Highway Agency.