US Bridges

N71 over Stream

Good

Kimball County, Nebraska · 6N Kimball · Structure no. S071 02267

Built
1957
68 years old, rebuilt 1997
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
2,220
2018 count
Owner
State
State Highway Agency

About this bridge

N71 over Stream is a concrete culvert carrying N71 over Stream in Kimball County, Nebraska. It was built in 1957 and reconstructed in 1997, 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 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 2,220 vehicles a day, roughly 15% of them trucks, projected to reach 3,108 by 2038. The structure is 33 ft (10.1 m) long. If it were closed, the detour would be 31.1 mi (50 km).

CarriesN71
CrossesStream
Location6N Kimball
RouteState Highway 71
Coordinates41.3242, -103.6639
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionSeptember 2023
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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.4 US tons
Inventory rating24.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,220 (2018)
Projected traffic3,108 by 2038
Trucks15%
Lanes on structure4
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 N71 over Stream built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1997.

What condition is N71 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 2023.

How much traffic does N71 over Stream carry?

About 2,220 vehicles per day (2018 count), of which roughly 15% are trucks.

How long is N71 over Stream?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m).

Who owns N71 over Stream?

It is owned by the State Highway Agency.