US Bridges

478th RD over Elkhorn River Trib

Good

Holt County, Nebraska · 2E 2.8S Atkinson · Structure no. C004523320

Built
2000
25 years old
Condition
Good
inspected October 2022
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
34 ft
2 main spans
Daily traffic
30
2003 count
Owner
County
County Highway Agency

About this bridge

478th RD over Elkhorn River Trib is a steel continuous stringer/multi-beam or girder carrying 478th RD over Elkhorn River Trib in Holt County, Nebraska. It was built in 2000, so it is 25 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 30 vehicles a day, projected to reach 37 by 2033. The structure is 34 ft (10.4 m) long and 28 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

Carries478th RD
CrossesElkhorn River Trib
Location2E 2.8S Atkinson
RouteCounty Highway 233
Coordinates42.4817, -98.9317
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating70.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span17 ft (5.2 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2003)
Projected traffic37 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.1 mi (50 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 478th RD over Elkhorn River Trib built?

It was built in 2000, making it 25 years old in 2025.

What condition is 478th RD over Elkhorn River Trib 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 October 2022.

How much traffic does 478th RD over Elkhorn River Trib carry?

About 30 vehicles per day (2003 count).

How long is 478th RD over Elkhorn River Trib?

The structure is 34 ft (10.4 m) long with a longest span of 17 ft (5.2 m) and a deck 28 ft wide.

Who owns 478th RD over Elkhorn River Trib?

It is owned by the County Highway Agency.