US Bridges

E1790 over East Cow Creek

FairPosted for load

Stephens County, Oklahoma · 2.1E US81 4.N SH 53 · Structure no. 219200000000000

Built
1988
37 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
59 ft
1 main span
Daily traffic
200
2022 count
Owner
County
County Highway Agency

About this bridge

E1790 over East Cow Creek is a steel stringer/multi-beam or girder carrying E1790 over East Cow Creek in Stephens County, Oklahoma. It was built in 1988, so it is 37 years old, younger 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. Its operating status is: posted for load restriction.

It carries about 200 vehicles a day, roughly 10% of them trucks, projected to reach 320 by 2042. The structure is 59 ft (18 m) long and 20 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesE1790
CrossesEast Cow Creek
Location2.1E US81 4.N SH 53
RouteCounty Highway E1790
Coordinates34.41995, -97.93749
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.8 US tons
Inventory rating19.7 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadH 10
Structure length59 ft (18 m)
Longest span59 ft (18 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2022)
Projected traffic320 by 2042
Trucks10%
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

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$383,000
NavigationNo navigation control on waterway

Frequently asked questions

When was E1790 over East Cow Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is E1790 over East Cow 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 June 2024.

How much traffic does E1790 over East Cow Creek carry?

About 200 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is E1790 over East Cow Creek?

The structure is 59 ft (18 m) long with a longest span of 59 ft (18 m) and a deck 20 ft wide.

Who owns E1790 over East Cow Creek?

It is owned by the County Highway Agency.