US Bridges

N57 over West Bow Creek

Good

Cedar County, Nebraska · 6N Hartington · Structure no. S057 07256

Built
2023
2 years old
Condition
Good
inspected September 2024
Type
Slab
Concrete Continuous
Length
142 ft
3 main spans
Daily traffic
2,055
2018 count
Owner
State
State Highway Agency

About this bridge

N57 over West Bow Creek is a concrete continuous slab carrying N57 over West Bow Creek in Cedar County, Nebraska. It was built in 2023, so it is 2 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 2,055 vehicles a day, roughly 9% of them trucks, projected to reach 2,980 by 2038. The structure is 142 ft (43.3 m) long and 43 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

CarriesN57
CrossesWest Bow Creek
Location6N Hartington
RouteState Highway 57
Coordinates42.7069, -97.26896
Functional classRural Minor Arterial

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 protection9 ExcellentNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 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 alignment8: Equal to present desirable criteria
Operating rating66.1 US tons
Inventory rating50.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length142 ft (43.3 m)
Longest span56 ft (17.1 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,055 (2018)
Projected traffic2,980 by 2038
Trucks9%
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

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 N57 over West Bow Creek built?

It was built in 2023, making it 2 years old in 2025.

What condition is N57 over West Bow 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 N57 over West Bow Creek carry?

About 2,055 vehicles per day (2018 count), of which roughly 9% are trucks.

How long is N57 over West Bow Creek?

The structure is 142 ft (43.3 m) long with a longest span of 56 ft (17.1 m) and a deck 43 ft wide.

Who owns N57 over West Bow Creek?

It is owned by the State Highway Agency.