US Bridges

S.H. 11 over Thompson Creek

Fair

Kay County, Oklahoma · 4.5 MI E Grant C/L · Structure no. 006060000000000

Built
1918
107 years old, rebuilt 1931
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
36 ft
1 main span
Daily traffic
2,000
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 11 over Thompson Creek is a steel stringer/multi-beam or girder carrying S.H. 11 over Thompson Creek in Kay County, Oklahoma. It was built in 1918 and reconstructed in 1931, so it is 107 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 2,000 vehicles a day, roughly 16% of them trucks, projected to reach 3,200 by 2042. The structure is 36 ft (11 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesS.H. 11
CrossesThompson Creek
Location4.5 MI E Grant C/L
RouteState Highway 11
CountyKay County
StateOklahoma
Coordinates36.81113, -97.38025
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating27 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length36 ft (11 m)
Longest span34 ft (10.5 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2022)
Projected traffic3,200 by 2042
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was S.H. 11 over Thompson Creek built?

It was built in 1918, making it 107 years old in 2025. It was reconstructed in 1931.

What condition is S.H. 11 over Thompson 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 October 2023.

How much traffic does S.H. 11 over Thompson Creek carry?

About 2,000 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is S.H. 11 over Thompson Creek?

The structure is 36 ft (11 m) long with a longest span of 34 ft (10.5 m) and a deck 33 ft wide.

Who owns S.H. 11 over Thompson Creek?

It is owned by the State Highway Agency.