US Bridges

U.S. 177 over Chikaskia River

Fair

Kay County, Oklahoma · 9.3 MI N JCT US 60 · Structure no. 139310000000000

Built
1957
68 years old, rebuilt 1989
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
562 ft
7 main spans
Daily traffic
3,100
2022 count
Owner
State
State Highway Agency

About this bridge

U.S. 177 over Chikaskia River is a steel continuous stringer/multi-beam or girder carrying U.S. 177 over Chikaskia River in Kay County, Oklahoma. It was built in 1957 and reconstructed in 1989, so it is 68 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 3,100 vehicles a day, roughly 15% of them trucks, projected to reach 4,960 by 2042. The structure is 562 ft (171.3 m) long and 51 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

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CarriesU.S. 177
CrossesChikaskia River
Location9.3 MI N JCT US 60
RouteU.S. Route 177
CountyKay County
StateOklahoma
Coordinates36.81516, -97.28289
Functional classUrban Other Principal 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 alignment7: Better than present minimum criteria
Operating rating67 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadH 20
Structure length562 ft (171.3 m)
Longest span100 ft (30.5 m)
Deck width51 ft (15.5 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,100 (2022)
Projected traffic4,960 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed11.8 mi (19 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$3.6 million
NavigationNo navigation control on waterway

Frequently asked questions

When was U.S. 177 over Chikaskia River built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1989.

What condition is U.S. 177 over Chikaskia River 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 June 2024.

How much traffic does U.S. 177 over Chikaskia River carry?

About 3,100 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is U.S. 177 over Chikaskia River?

The structure is 562 ft (171.3 m) long with a longest span of 100 ft (30.5 m) and a deck 51 ft wide.

Who owns U.S. 177 over Chikaskia River?

It is owned by the State Highway Agency.