US Bridges

U.S. 70 over Big Creek

Good

Bryan County, Oklahoma · 14.65 E JCT SH-78 · Structure no. 167650000000000

Built
1966
59 years old, rebuilt 2023
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
162 ft
3 main spans
Daily traffic
3,500
2022 count
Owner
State
State Highway Agency

About this bridge

U.S. 70 over Big Creek is a steel stringer/multi-beam or girder carrying U.S. 70 over Big Creek in Bryan County, Oklahoma. It was built in 1966 and reconstructed in 2023, so it is 59 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 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 3,500 vehicles a day, roughly 25% of them trucks, projected to reach 5,600 by 2042. The structure is 162 ft (49.4 m) long and 45 ft wide. If it were closed, the detour would be 51 mi (82 km).

Location

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CarriesU.S. 70
CrossesBig Creek
Location14.65 E JCT SH-78
RouteU.S. Route 70
CountyBryan County
StateOklahoma
Coordinates34.01365, -96.12279
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length162 ft (49.4 m)
Longest span60 ft (18.3 m)
Deck width45 ft (13.8 m)
Roadway width43 ft (13.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,500 (2022)
Projected traffic5,600 by 2042
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed51 mi (82 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.9 million
NavigationNo navigation control on waterway

Frequently asked questions

When was U.S. 70 over Big Creek built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 2023.

What condition is U.S. 70 over Big 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 April 2024.

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

About 3,500 vehicles per day (2022 count), of which roughly 25% are trucks.

How long is U.S. 70 over Big Creek?

The structure is 162 ft (49.4 m) long with a longest span of 60 ft (18.3 m) and a deck 45 ft wide.

Who owns U.S. 70 over Big Creek?

It is owned by the State Highway Agency.