US Bridges

US20 over Elk Creek

Good

Dakota County, Nebraska · 3W Jackson · Structure no. S020 41914

Built
1954
71 years old, rebuilt 1986
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
222 ft
3 main spans
Daily traffic
5,645
2018 count
Owner
State
State Highway Agency

About this bridge

US20 over Elk Creek is a steel continuous stringer/multi-beam or girder carrying US20 over Elk Creek in Dakota County, Nebraska. It was built in 1954 and reconstructed in 1986, so it is 71 years old, older 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 5,645 vehicles a day, roughly 21% of them trucks, projected to reach 7,621 by 2038. The structure is 222 ft (67.7 m) long and 42 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

CarriesUS20
CrossesElk Creek
Location3W Jackson
RouteU.S. Route 20
Coordinates42.4715, -96.6127
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.6 US tons
Inventory rating29.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length222 ft (67.7 m)
Longest span87 ft (26.5 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,645 (2018)
Projected traffic7,621 by 2038
Trucks21%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US20 over Elk Creek built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1986.

What condition is US20 over Elk Creek 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 US20 over Elk Creek carry?

About 5,645 vehicles per day (2018 count), of which roughly 21% are trucks.

How long is US20 over Elk Creek?

The structure is 222 ft (67.7 m) long with a longest span of 87 ft (26.5 m) and a deck 42 ft wide.

Who owns US20 over Elk Creek?

It is owned by the State Highway Agency.