US Bridges

S.H. 99 NB over Shan Creek

Good

Pottawatomie County, Oklahoma · .1N. Seminole C/L · Structure no. 281410000000000

Built
2009
16 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
297 ft
3 main spans
Daily traffic
2,850
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 99 NB over Shan Creek is a prestressed concrete stringer/multi-beam or girder carrying S.H. 99 NB over Shan Creek in Pottawatomie 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 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 2,850 vehicles a day, roughly 16% of them trucks, projected to reach 4,560 by 2042. The structure is 297 ft (90.5 m) long and 39 ft wide.

Location

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CarriesS.H. 99 NB
CrossesShan Creek
Location.1N. Seminole C/L
RouteState Highway 99
CountyPottawatomie County
StateOklahoma
Coordinates35.40204, -96.66977
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
Deck7 GoodSome minor problems.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJune 2023
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 rating48.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length297 ft (90.5 m)
Longest span99 ft (30.1 m)
Deck width39 ft (11.9 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,850 (2022)
Projected traffic4,560 by 2042
Trucks16%
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$4.6 million
NavigationNo navigation control on waterway

Frequently asked questions

When was S.H. 99 NB over Shan Creek built?

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

What condition is S.H. 99 NB over Shan Creek 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 June 2023.

How much traffic does S.H. 99 NB over Shan Creek carry?

About 2,850 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is S.H. 99 NB over Shan Creek?

The structure is 297 ft (90.5 m) long with a longest span of 99 ft (30.1 m) and a deck 39 ft wide.

Who owns S.H. 99 NB over Shan Creek?

It is owned by the State Highway Agency.