US Bridges

S.H. 66 over Spring Creek

Fair

Lincoln County, Oklahoma · 7.0 MI E Okla. C/L · Structure no. 125960000000000

Built
1951
74 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
54 ft
3 main spans
Daily traffic
4,000
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 66 over Spring Creek is a concrete culvert carrying S.H. 66 over Spring Creek in Lincoln County, Oklahoma. It was built in 1951, so it is 74 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 4,000 vehicles a day, roughly 15% of them trucks, projected to reach 6,400 by 2042. The structure is 54 ft (16.5 m) long and 34 ft wide. If it were closed, the detour would be 52.2 mi (84 km).

Location

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CarriesS.H. 66
CrossesSpring Creek
Location7.0 MI E Okla. C/L
RouteState Highway 66
CountyLincoln County
StateOklahoma
Coordinates35.68097, -97.02085
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 inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.4 US tons
Inventory rating30.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length54 ft (16.5 m)
Longest span17 ft (5.2 m)
Deck width34 ft (10.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,000 (2022)
Projected traffic6,400 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed52.2 mi (84 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$724,000
NavigationNo navigation control on waterway

Frequently asked questions

When was S.H. 66 over Spring Creek built?

It was built in 1951, making it 74 years old in 2025.

What condition is S.H. 66 over Spring 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 August 2024.

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

About 4,000 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is S.H. 66 over Spring Creek?

The structure is 54 ft (16.5 m) long with a longest span of 17 ft (5.2 m) and a deck 34 ft wide.

Who owns S.H. 66 over Spring Creek?

It is owned by the State Highway Agency.