US Bridges

E0660 over S. Turkey Creek

Good

Ellis County, Oklahoma · 1E5S1E1SS1.2EOF Harmon · Structure no. 198890000000000

Built
1981
44 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete
Length
31 ft
3 main spans
Daily traffic
30
2022 count
Owner
County
County Highway Agency

About this bridge

E0660 over S. Turkey Creek is a concrete culvert carrying E0660 over S. Turkey Creek in Ellis County, Oklahoma. It was built in 1981, so it is 44 years old, younger 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 30 vehicles a day, roughly 15% of them trucks, projected to reach 48 by 2042. The structure is 31 ft (9.4 m) long and 33 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesE0660
CrossesS. Turkey Creek
Location1E5S1E1SS1.2EOF Harmon
RouteCounty Highway E0660
Coordinates36.0575, -99.5075
Functional classRural Major Collector

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionApril 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 geometry8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating21.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span10 ft (3 m)
Deck width33 ft (10.2 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2022)
Projected traffic48 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was E0660 over S. Turkey Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is E0660 over S. Turkey 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 April 2024.

How much traffic does E0660 over S. Turkey Creek carry?

About 30 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is E0660 over S. Turkey Creek?

The structure is 31 ft (9.4 m) long with a longest span of 10 ft (3 m) and a deck 33 ft wide.

Who owns E0660 over S. Turkey Creek?

It is owned by the County Highway Agency.