US Bridges

N57 over Bow Creek Trib & Ove

Good

Cedar County, Nebraska · 1S Hartington · Structure no. S057 06507

Built
1987
38 years old
Condition
Good
inspected September 2024
Type
Tee Beam
Prestressed Concrete
Length
70 ft
2 main spans
Daily traffic
1,835
2018 count
Owner
State
State Highway Agency

About this bridge

N57 over Bow Creek Trib & Ove is a prestressed concrete tee beam carrying N57 over Bow Creek Trib & Ove in Cedar County, Nebraska. It was built in 1987, so it is 38 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 1,835 vehicles a day, roughly 7% of them trucks, projected to reach 2,386 by 2038. The structure is 70 ft (21.3 m) long and 38 ft wide. If it were closed, the detour would be 37.3 mi (60 km).

CarriesN57
CrossesBow Creek Trib & Ove
Location1S Hartington
RouteState Highway 57
Coordinates42.5983, -97.2697
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.2 US tons
Inventory rating46.3 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length70 ft (21.3 m)
Longest span34 ft (10.4 m)
Deck width38 ft (11.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,835 (2018)
Projected traffic2,386 by 2038
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed37.3 mi (60 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N57 over Bow Creek Trib & Ove built?

It was built in 1987, making it 38 years old in 2025.

What condition is N57 over Bow Creek Trib & Ove 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 Bow Creek Trib & Ove carry?

About 1,835 vehicles per day (2018 count), of which roughly 7% are trucks.

How long is N57 over Bow Creek Trib & Ove?

The structure is 70 ft (21.3 m) long with a longest span of 34 ft (10.4 m) and a deck 38 ft wide.

Who owns N57 over Bow Creek Trib & Ove?

It is owned by the State Highway Agency.