US Bridges

N57 over Stream

Good

Cedar County, Nebraska · 7SW Hartington · Structure no. S057 05888

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

About this bridge

N57 over Stream is a concrete culvert carrying N57 over Stream 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 26 ft (7.9 m) long. If it were closed, the detour would be 18.6 mi (30 km).

CarriesN57
CrossesStream
Location7SW Hartington
RouteState Highway 57
Coordinates42.5249, -97.2184
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.4 US tons
Inventory rating36.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 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 closed18.6 mi (30 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 Stream built?

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

What condition is N57 over Stream 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 Stream carry?

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

How long is N57 over Stream?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).

Who owns N57 over Stream?

It is owned by the State Highway Agency.