US Bridges

S.H. 11 over Legion Creek

Good

Kay County, Oklahoma · 3.0 MI E I-35 · Structure no. 047770000000000

Built
1936
89 years old, rebuilt 1962
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
5,900
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 11 over Legion Creek is a concrete culvert carrying S.H. 11 over Legion Creek in Kay County, Oklahoma. It was built in 1936 and reconstructed in 1962, so it is 89 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,900 vehicles a day, roughly 16% of them trucks, projected to reach 9,440 by 2042. The structure is 21 ft (6.4 m) long and 75 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesS.H. 11
CrossesLegion Creek
Location3.0 MI E I-35
RouteState Highway 11
CountyKay County
StateOklahoma
Coordinates36.8114, -97.29012
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width75 ft (23 m)
Roadway width73 ft (22.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,900 (2022)
Projected traffic9,440 by 2042
Trucks16%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$644,000
NavigationNo navigation control on waterway

Frequently asked questions

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

It was built in 1936, making it 89 years old in 2025. It was reconstructed in 1962.

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

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

About 5,900 vehicles per day (2022 count), of which roughly 16% are trucks.

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

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 75 ft wide.

Who owns S.H. 11 over Legion Creek?

It is owned by the State Highway Agency.