US Bridges

S.H. 99 over N. Canadian River

Fair

Seminole County, Oklahoma · Pott-Seminole C/L · Structure no. 281240000000000

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

About this bridge

S.H. 99 over N. Canadian River is a prestressed concrete continuous stringer/multi-beam or girder carrying S.H. 99 over N. Canadian River 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 fair condition with a lowest component rating of 6 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 2,900 vehicles a day, roughly 25% of them trucks, projected to reach 4,640 by 2042. The structure is 804 ft (245.1 m) long and 42 ft wide.

Location

Open in Google Maps
CarriesS.H. 99
CrossesN. Canadian River
LocationPott-Seminole C/L
RouteState Highway 99
CountySeminole County
StateOklahoma
Coordinates35.39894, -96.67022
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum 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

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans8
Design loadHL 93
Structure length804 ft (245.1 m)
Longest span111 ft (33.8 m)
Deck width42 ft (12.8 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$13.5 million
NavigationNo navigation control on waterway

Frequently asked questions

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

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

What condition is S.H. 99 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 April 2024.

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

The structure is 804 ft (245.1 m) long with a longest span of 111 ft (33.8 m) and a deck 42 ft wide.

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

It is owned by the State Highway Agency.