US Bridges

S.H. 18 over Black Bear Creek

Good

Pawnee County, Oklahoma · .4 N U.S. 64 JCT · Structure no. 328940000000000

Built
2024
1 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
337 ft
3 main spans
Daily traffic
2,500
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 18 over Black Bear Creek is a prestressed concrete stringer/multi-beam or girder carrying S.H. 18 over Black Bear Creek in Pawnee County, Oklahoma. It was built in 2024, so it is 1 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 2,500 vehicles a day, roughly 12% of them trucks, projected to reach 3,500 by 2042. The structure is 337 ft (102.6 m) long and 54 ft wide.

CarriesS.H. 18
CrossesBlack Bear Creek
Location.4 N U.S. 64 JCT
RouteState Highway 18
Coordinates36.34346, -96.8001
Functional classRural Minor Arterial

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 protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating78.3 US tons
Inventory rating46.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length337 ft (102.6 m)
Longest span135 ft (41.1 m)
Deck width54 ft (16.5 m)
Roadway width13 ft (4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,500 (2022)
Projected traffic3,500 by 2042
Trucks12%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S.H. 18 over Black Bear Creek built?

It was built in 2024, making it 1 years old in 2025.

What condition is S.H. 18 over Black Bear 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 March 2024.

How much traffic does S.H. 18 over Black Bear Creek carry?

About 2,500 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is S.H. 18 over Black Bear Creek?

The structure is 337 ft (102.6 m) long with a longest span of 135 ft (41.1 m) and a deck 54 ft wide.

Who owns S.H. 18 over Black Bear Creek?

It is owned by the State Highway Agency.