US Bridges

I-35 over S. Canadian Oflow

Good

McClain County, Oklahoma · .3 MI S Clev. C/L · Structure no. 220070000000000

Built
1988
37 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
120 ft
3 main spans
Daily traffic
27,750
2022 count
Owner
State
State Highway Agency

About this bridge

I-35 over S. Canadian Oflow is a prestressed concrete stringer/multi-beam or girder carrying I-35 over S. Canadian Oflow in McClain County, Oklahoma. It was built in 1988, so it is 37 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 27,750 vehicles a day, roughly 36% of them trucks, projected to reach 44,400 by 2042. The structure is 120 ft (36.6 m) long and 67 ft wide.

Location

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CarriesI-35
CrossesS. Canadian Oflow
Location.3 MI S Clev. C/L
RouteInterstate 35
CountyMcClain County
StateOklahoma
Coordinates35.18341, -97.49284
Functional classRural Principal Arterial - Interstate

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span40 ft (12.2 m)
Deck width67 ft (20.4 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,750 (2022)
Projected traffic44,400 by 2042
Trucks36%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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$1.6 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I-35 over S. Canadian Oflow built?

It was built in 1988, making it 37 years old in 2025.

What condition is I-35 over S. Canadian Oflow 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 August 2023.

How much traffic does I-35 over S. Canadian Oflow carry?

About 27,750 vehicles per day (2022 count), of which roughly 36% are trucks.

How long is I-35 over S. Canadian Oflow?

The structure is 120 ft (36.6 m) long with a longest span of 40 ft (12.2 m) and a deck 67 ft wide.

Who owns I-35 over S. Canadian Oflow?

It is owned by the State Highway Agency.