US Bridges

S.H. 66 over Creek

Fair

Canadian County, Oklahoma · 2.5 Mi. E. Jct. US81 · Structure no. 019910000000000

Built
1928
97 years old, rebuilt 1940
Condition
Fair
inspected May 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
5,700
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 66 over Creek is a concrete culvert carrying S.H. 66 over Creek in Canadian County, Oklahoma. It was built in 1928 and reconstructed in 1940, so it is 97 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 6 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 5,700 vehicles a day, roughly 15% of them trucks, projected to reach 9,120 by 2042. The structure is 21 ft (6.3 m) long. If it were closed, the detour would be 11.8 mi (19 km).

CarriesS.H. 66
CrossesCreek
Location2.5 Mi. E. Jct. US81
RouteState Highway 66
Coordinates35.5079, -97.89447
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to 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 (6.3 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,700 (2022)
Projected traffic9,120 by 2042
Trucks15%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
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 statusHistorical significance not determinable at this time
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. 66 over Creek built?

It was built in 1928, making it 97 years old in 2025. It was reconstructed in 1940.

What condition is S.H. 66 over 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 May 2023.

How much traffic does S.H. 66 over Creek carry?

About 5,700 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is S.H. 66 over Creek?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m).

Who owns S.H. 66 over Creek?

It is owned by the State Highway Agency.