US Bridges

S.H. 8 over Creek

Good

Alfalfa County, Oklahoma · 0.2 MI.N.JCT.US64 · Structure no. 028560000000000

Built
1930
95 years old, rebuilt 2011
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
1,800
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 8 over Creek is a concrete culvert carrying S.H. 8 over Creek in Alfalfa County, Oklahoma. It was built in 1930 and reconstructed in 2011, so it is 95 years old, older 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 1,800 vehicles a day, roughly 15% of them trucks, projected to reach 2,880 by 2042. The structure is 32 ft (9.8 m) long and 71 ft wide. If it were closed, the detour would be 39.8 mi (64 km).

CarriesS.H. 8
CrossesCreek
Location0.2 MI.N.JCT.US64
RouteState Highway 8
Coordinates36.79995, -98.36006
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.6 US tons
Inventory rating23.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHL 93
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width71 ft (21.7 m)
Roadway width69 ft (21.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,800 (2022)
Projected traffic2,880 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.8 mi (64 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$644,000
NavigationNo navigation control on waterway

Frequently asked questions

When was S.H. 8 over Creek built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 2011.

What condition is S.H. 8 over 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 September 2023.

How much traffic does S.H. 8 over Creek carry?

About 1,800 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is S.H. 8 over Creek?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m) and a deck 71 ft wide.

Who owns S.H. 8 over Creek?

It is owned by the State Highway Agency.