US Bridges

S.H. 99 over N. Canadian River Oflow

Good

Seminole County, Oklahoma · .2 Mi. S. Pott C/L · Structure no. 281250000000000

Built
2009
16 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
198 ft
2 main spans
Daily traffic
2,900
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 99 over N. Canadian River Oflow is a prestressed concrete stringer/multi-beam or girder carrying S.H. 99 over N. Canadian River Oflow in Seminole County, Oklahoma. It was built in 2009, so it is 16 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 2,900 vehicles a day, roughly 25% of them trucks, projected to reach 4,640 by 2042. The structure is 198 ft (60.2 m) long and 41 ft wide.

CarriesS.H. 99
CrossesN. Canadian River Oflow
Location.2 Mi. S. Pott C/L
RouteState Highway 99
Coordinates35.39613, -96.67063
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionFebruary 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.8 US tons
Inventory rating48.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length198 ft (60.2 m)
Longest span99 ft (30.1 m)
Deck width41 ft (12.5 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,900 (2022)
Projected traffic4,640 by 2042
Trucks25%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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$3.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was S.H. 99 over N. Canadian River Oflow built?

It was built in 2009, making it 16 years old in 2025.

What condition is S.H. 99 over N. Canadian River 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 February 2024.

How much traffic does S.H. 99 over N. Canadian River Oflow carry?

About 2,900 vehicles per day (2022 count), of which roughly 25% are trucks.

How long is S.H. 99 over N. Canadian River Oflow?

The structure is 198 ft (60.2 m) long with a longest span of 99 ft (30.1 m) and a deck 41 ft wide.

Who owns S.H. 99 over N. Canadian River Oflow?

It is owned by the State Highway Agency.