US Bridges

US20 over Elkhorn River

Good

Holt County, Nebraska · 6SE Inman · Structure no. S020 32180

Built
2000
25 years old
Condition
Good
inspected March 2021
Type
Tee Beam
Prestressed Concrete Continuous
Length
133 ft
3 main spans
Daily traffic
820
2018 count
Owner
State
State Highway Agency

About this bridge

US20 over Elkhorn River is a prestressed concrete continuous tee beam carrying US20 over Elkhorn River 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 820 vehicles a day, roughly 26% of them trucks, projected to reach 1,107 by 2038. The structure is 133 ft (40.5 m) long and 46 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

CarriesUS20
CrossesElkhorn River
Location6SE Inman
RouteU.S. Route 20
Coordinates42.3356, -98.4374
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.3 US tons
Inventory rating54 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length133 ft (40.5 m)
Longest span52 ft (15.8 m)
Deck width46 ft (13.9 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic820 (2018)
Projected traffic1,107 by 2038
Trucks26%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.1 mi (50 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US20 over Elkhorn River built?

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

What condition is US20 over 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 March 2021.

How much traffic does US20 over Elkhorn River carry?

About 820 vehicles per day (2018 count), of which roughly 26% are trucks.

How long is US20 over Elkhorn River?

The structure is 133 ft (40.5 m) long with a longest span of 52 ft (15.8 m) and a deck 46 ft wide.

Who owns US20 over Elkhorn River?

It is owned by the State Highway Agency.