US Bridges

478th Ave over South Fork Elkhorn River

Good

Holt County, Nebraska · _ · Structure no. C004503305

Built
2022
3 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
50
2021 count
Owner
County
County Highway Agency

About this bridge

478th Ave over South Fork Elkhorn River is a concrete culvert carrying 478th Ave over South Fork Elkhorn River in Holt County, Nebraska. It was built in 2022, so it is 3 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, projected to reach 50 by 2041. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 18.6 mi (30 km).

Carries478th Ave
CrossesSouth Fork Elkhorn River
Location_
RouteCounty Highway 0
Coordinates42.19968, -98.92352
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 protection7 GoodSome minor problems.
Culvert9 ExcellentNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating59.5 US tons
Inventory rating46.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2021)
Projected traffic50 by 2041
Trucks0%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 478th Ave over South Fork Elkhorn River built?

It was built in 2022, making it 3 years old in 2025.

What condition is 478th Ave over South Fork Elkhorn River 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 September 2024.

How much traffic does 478th Ave over South Fork Elkhorn River carry?

About 50 vehicles per day (2021 count).

How long is 478th Ave over South Fork Elkhorn River?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).

Who owns 478th Ave over South Fork Elkhorn River?

It is owned by the County Highway Agency.