US Bridges

S.H. 11 over Arkansas River

Fair

Kay County, Oklahoma · 14.1 MI E JCT US 77 · Structure no. 191120000000000

Built
1975
50 years old
Condition
Fair
inspected June 2024
Type
Girder and Floorbeam System
Steel Continuous
Length
1,366 ft
7 main spans
Daily traffic
830
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 11 over Arkansas River is a steel continuous girder and floorbeam system carrying S.H. 11 over Arkansas River in Kay County, Oklahoma. It was built in 1975, so it is 50 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 830 vehicles a day, roughly 15% of them trucks, projected to reach 1,328 by 2042. The structure is 1,366 ft (416.4 m) long and 36 ft wide. If it were closed, the detour would be 31.7 mi (51 km).

Location

Open in Google Maps
CarriesS.H. 11
CrossesArkansas River
Location14.1 MI E JCT US 77
RouteState Highway 11
CountyKay County
StateOklahoma
Coordinates36.76418, -96.82277
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69 US tons
Inventory rating41 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length1,366 ft (416.4 m)
Longest span194 ft (59.1 m)
Deck width36 ft (11 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic830 (2022)
Projected traffic1,328 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed31.7 mi (51 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$7.6 million
NavigationNo navigation control on waterway

Frequently asked questions

When was S.H. 11 over Arkansas River built?

It was built in 1975, making it 50 years old in 2025.

What condition is S.H. 11 over Arkansas 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 S.H. 11 over Arkansas River carry?

About 830 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is S.H. 11 over Arkansas River?

The structure is 1,366 ft (416.4 m) long with a longest span of 194 ft (59.1 m) and a deck 36 ft wide.

Who owns S.H. 11 over Arkansas River?

It is owned by the State Highway Agency.