US Bridges

U.S. 81 over Osage Creek

Fair

Grant County, Oklahoma · 4.5 MI N JCT US 60 · Structure no. 169790000000000

Built
1967
58 years old, rebuilt 2015
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
160 ft
3 main spans
Daily traffic
1,400
2022 count
Owner
State
State Highway Agency

About this bridge

U.S. 81 over Osage Creek is a steel continuous stringer/multi-beam or girder carrying U.S. 81 over Osage Creek in Grant County, Oklahoma. It was built in 1967 and reconstructed in 2015, so it is 58 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 1,400 vehicles a day, roughly 16% of them trucks, projected to reach 2,240 by 2042. The structure is 160 ft (48.9 m) long and 45 ft wide. If it were closed, the detour would be 21.1 mi (34 km).

Location

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CarriesU.S. 81
CrossesOsage Creek
Location4.5 MI N JCT US 60
RouteU.S. Route 81
CountyGrant County
StateOklahoma
Coordinates36.72805, -97.79024
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating38 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length160 ft (48.9 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 traffic1,400 (2022)
Projected traffic2,240 by 2042
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.1 mi (34 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 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. 81 over Osage Creek built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 2015.

What condition is U.S. 81 over Osage 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 March 2024.

How much traffic does U.S. 81 over Osage Creek carry?

About 1,400 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is U.S. 81 over Osage Creek?

The structure is 160 ft (48.9 m) long with a longest span of 60 ft (18.3 m) and a deck 45 ft wide.

Who owns U.S. 81 over Osage Creek?

It is owned by the State Highway Agency.