US Bridges

County Highway over Oak Creek

Good

Sherman County, Nebraska · 1.4N of Ashton · Structure no. C008224315

Built
2012
13 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
50
2023 count
Owner
County
County Highway Agency

About this bridge

County Highway over Oak Creek is a concrete culvert carrying County Highway over Oak Creek in Sherman County, Nebraska. It was built in 2012, so it is 13 years old, younger than the Nebraska average of 47.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, roughly 10% of them trucks, projected to reach 85 by 2042. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 18.6 mi (30 km).

CarriesCounty Highway
CrossesOak Creek
Location1.4N of Ashton
RouteCounty Highway 243
Coordinates41.2696, -98.8041
Functional classRural Local

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 protection9 ExcellentNo problems noted.
Culvert9 ExcellentNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating59.5 US tons
Inventory rating36.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length22 ft (6.7 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 (2023)
Projected traffic85 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18.6 mi (30 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Highway over Oak Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is County Highway over Oak 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 2023.

How much traffic does County Highway over Oak Creek carry?

About 50 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County Highway over Oak Creek?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns County Highway over Oak Creek?

It is owned by the County Highway Agency.