US Bridges

488th Ave over Elkhorn River Overflow

Good

Holt County, Nebraska · 4W Oneill · Structure no. C004515330

Built
2020
5 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
37 ft
3 main spans
Daily traffic
15
2003 count
Owner
County
County Highway Agency

About this bridge

488th Ave over Elkhorn River Overflow is a concrete culvert carrying 488th Ave over Elkhorn River Overflow in Holt County, Nebraska. It was built in 2020, so it is 5 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 15 vehicles a day, projected to reach 18 by 2033. The structure is 37 ft (11.4 m) long. If it were closed, the detour would be 87 mi (140 km).

Carries488th Ave
CrossesElkhorn River Overflow
Location4W Oneill
RouteCounty Highway 153
Coordinates42.4627, -98.7359
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 protection8 Very GoodNo problems noted.
Culvert9 ExcellentNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.3 US tons
Inventory rating35.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHL 93
Structure length37 ft (11.4 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 traffic15 (2003)
Projected traffic18 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed87 mi (140 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was 488th Ave over Elkhorn River Overflow built?

It was built in 2020, making it 5 years old in 2025.

What condition is 488th Ave over Elkhorn River Overflow 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 488th Ave over Elkhorn River Overflow carry?

About 15 vehicles per day (2003 count).

How long is 488th Ave over Elkhorn River Overflow?

The structure is 37 ft (11.4 m) long with a longest span of 12 ft (3.7 m).

Who owns 488th Ave over Elkhorn River Overflow?

It is owned by the County Highway Agency.