US Bridges

U.S. 70 over White Grass Creek

Fair

Bryan County, Oklahoma · 21.39 E JCT SH-78 · Structure no. 105170000000000

Built
1946
79 years old, rebuilt 1995
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
40 ft
3 main spans
Daily traffic
2,400
2022 count
Owner
State
State Highway Agency

About this bridge

U.S. 70 over White Grass Creek is a concrete culvert carrying U.S. 70 over White Grass Creek in Bryan County, Oklahoma. It was built in 1946 and reconstructed in 1995, so it is 79 years old, older than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,400 vehicles a day, roughly 25% of them trucks, projected to reach 3,840 by 2042. The structure is 40 ft (12.2 m) long and 70 ft wide. If it were closed, the detour would be 110 mi (177 km).

Location

Open in Google Maps
CarriesU.S. 70
CrossesWhite Grass Creek
Location21.39 E JCT SH-78
RouteU.S. Route 70
CountyBryan County
StateOklahoma
Coordinates34.02626, -96.02172
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.3 US tons
Inventory rating27.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 20
Structure length40 ft (12.2 m)
Longest span14 ft (4.3 m)
Deck width70 ft (21.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,400 (2022)
Projected traffic3,840 by 2042
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed110 mi (177 km)
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1.5 million
NavigationNo navigation control on waterway

Frequently asked questions

When was U.S. 70 over White Grass Creek built?

It was built in 1946, making it 79 years old in 2025. It was reconstructed in 1995.

What condition is U.S. 70 over White Grass Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2024.

How much traffic does U.S. 70 over White Grass Creek carry?

About 2,400 vehicles per day (2022 count), of which roughly 25% are trucks.

How long is U.S. 70 over White Grass Creek?

The structure is 40 ft (12.2 m) long with a longest span of 14 ft (4.3 m) and a deck 70 ft wide.

Who owns U.S. 70 over White Grass Creek?

It is owned by the State Highway Agency.