US Bridges

US20/N121 over E Br N Fk Elkhorn River

Fair

Pierce County, Nebraska · 3E Osmond · Structure no. S020 36782

Built
1957
68 years old, rebuilt 2004
Condition
Fair
inspected October 2024
Type
Slab
Concrete Continuous
Length
74 ft
3 main spans
Daily traffic
2,345
2018 count
Owner
State
State Highway Agency

About this bridge

US20/N121 over E Br N Fk Elkhorn River is a concrete continuous slab carrying US20/N121 over E Br N Fk Elkhorn River in Pierce County, Nebraska. It was built in 1957 and reconstructed in 2004, so it is 68 years old, older than the Nebraska average of 47.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,345 vehicles a day, roughly 20% of them trucks, projected to reach 3,049 by 2038. The structure is 74 ft (22.6 m) long and 46 ft wide. If it were closed, the detour would be 198.8 mi (320 km).

Location

Open in Google Maps
CarriesUS20/N121
CrossesE Br N Fk Elkhorn River
Location3E Osmond
RouteU.S. Route 20
CountyPierce County
StateNebraska
Coordinates42.3657, -97.5459
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.9 US tons
Inventory rating32 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length74 ft (22.6 m)
Longest span29 ft (8.8 m)
Deck width46 ft (14.1 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,345 (2018)
Projected traffic3,049 by 2038
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed198.8 mi (320 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US20/N121 over E Br N Fk Elkhorn River built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 2004.

What condition is US20/N121 over E Br N Fk Elkhorn River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.

How much traffic does US20/N121 over E Br N Fk Elkhorn River carry?

About 2,345 vehicles per day (2018 count), of which roughly 20% are trucks.

How long is US20/N121 over E Br N Fk Elkhorn River?

The structure is 74 ft (22.6 m) long with a longest span of 29 ft (8.8 m) and a deck 46 ft wide.

Who owns US20/N121 over E Br N Fk Elkhorn River?

It is owned by the State Highway Agency.