US Bridges

S.H. 8 over Driftwood Creek

Good

Alfalfa County, Oklahoma · 3.3N JCT U.S. 64 · Structure no. 295710000000000

Built
2012
13 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
500 ft
5 main spans
Daily traffic
1,600
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 8 over Driftwood Creek is a prestressed concrete stringer/multi-beam or girder carrying S.H. 8 over Driftwood Creek in Alfalfa County, Oklahoma. It was built in 2012, so it is 13 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 1,600 vehicles a day, roughly 15% of them trucks, projected to reach 2,560 by 2042. The structure is 500 ft (152.4 m) long and 41 ft wide.

Location

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CarriesS.H. 8
CrossesDriftwood Creek
Location3.3N JCT U.S. 64
RouteState Highway 64
CountyAlfalfa County
StateOklahoma
Coordinates36.845, -98.36
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.4 US tons
Inventory rating40.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHL 93
Structure length500 ft (152.4 m)
Longest span100 ft (30.5 m)
Deck width41 ft (12.6 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,600 (2022)
Projected traffic2,560 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-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. 8 over Driftwood Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is S.H. 8 over Driftwood 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 Driftwood Creek carry?

About 1,600 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is S.H. 8 over Driftwood Creek?

The structure is 500 ft (152.4 m) long with a longest span of 100 ft (30.5 m) and a deck 41 ft wide.

Who owns S.H. 8 over Driftwood Creek?

It is owned by the State Highway Agency.