US Bridges

U.S. 64 over Unnamed Creek

Good

Grant County, Oklahoma · 7.1 E Alfalfa C/L · Structure no. 302580000000000

Built
2015
10 years old
Condition
Good
inspected March 2024
Type
Slab
Concrete
Length
89 ft
3 main spans
Daily traffic
1,200
2022 count
Owner
State
State Highway Agency

About this bridge

U.S. 64 over Unnamed Creek is a concrete slab carrying U.S. 64 over Unnamed Creek in Grant County, Oklahoma. It was built in 2015, so it is 10 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 1,200 vehicles a day, roughly 15% of them trucks, projected to reach 1,920 by 2042. The structure is 89 ft (27 m) long and 42 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

CarriesU.S. 64
CrossesUnnamed Creek
Location7.1 E Alfalfa C/L
RouteU.S. Route 64
Coordinates36.66583, -97.98083
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 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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71 US tons
Inventory rating54 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length89 ft (27 m)
Longest span30 ft (9.1 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,200 (2022)
Projected traffic1,920 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 km)
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 U.S. 64 over Unnamed Creek built?

It was built in 2015, making it 10 years old in 2025.

What condition is U.S. 64 over Unnamed 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 U.S. 64 over Unnamed Creek carry?

About 1,200 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is U.S. 64 over Unnamed Creek?

The structure is 89 ft (27 m) long with a longest span of 30 ft (9.1 m) and a deck 42 ft wide.

Who owns U.S. 64 over Unnamed Creek?

It is owned by the State Highway Agency.