US Bridges

3120C/ N4520 over Creek

GoodPosted for load

Haskell County, Oklahoma · 2.2N;3W of Keota · Structure no. 112540000000000

Built
1950
75 years old
Condition
Good
inspected June 2023
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
50
2022 count
Owner
County
County Highway Agency

About this bridge

3120C/ N4520 over Creek is a concrete culvert carrying 3120C/ N4520 over Creek in Haskell County, Oklahoma. It was built in 1950, so it is 75 years old, older 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. Its operating status is: posted for load restriction.

It carries about 50 vehicles a day, roughly 15% of them trucks, projected to reach 80 by 2042. The structure is 23 ft (7 m) long. If it were closed, the detour would be 6.8 mi (11 km).

Carries3120C/ N4520
CrossesCreek
Location2.2N;3W of Keota
RouteCounty Highway 3120C
Coordinates35.2832, -94.97332
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44.1 US tons
Inventory rating34.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length23 ft (7 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 traffic50 (2022)
Projected traffic80 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 3120C/ N4520 over Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is 3120C/ N4520 over 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 June 2023.

How much traffic does 3120C/ N4520 over Creek carry?

About 50 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 3120C/ N4520 over Creek?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m).

Who owns 3120C/ N4520 over Creek?

It is owned by the County Highway Agency.