US Bridges

N2800 over Cow Creek

FairPosted for load

Jefferson County, Oklahoma · 1W & 1.7 N of US81/US70 · Structure no. 240740000000000

Built
1995
30 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Concrete Continuous
Length
110 ft
3 main spans
Daily traffic
195
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

N2800 over Cow Creek is a concrete continuous stringer/multi-beam or girder carrying N2800 over Cow Creek in Jefferson County, Oklahoma. It was built in 1995, so it is 30 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 6 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 195 vehicles a day, roughly 10% of them trucks, projected to reach 312 by 2042. The structure is 110 ft (33.5 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesN2800
CrossesCow Creek
Location1W & 1.7 N of US81/US70
RouteCity Street N2800
CountyJefferson County
StateOklahoma
Coordinates34.18278, -97.99966
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating29.2 US tons
Inventory rating17.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length110 ft (33.5 m)
Longest span40 ft (12.2 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic195 (2022)
Projected traffic312 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal 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$534,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N2800 over Cow Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is N2800 over 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 May 2023.

How much traffic does N2800 over Cow Creek carry?

About 195 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N2800 over Cow Creek?

The structure is 110 ft (33.5 m) long with a longest span of 40 ft (12.2 m) and a deck 28 ft wide.

Who owns N2800 over Cow Creek?

It is owned by the City or Municipal Highway Agency and maintained by the County Highway Agency.