US Bridges

N71 over HWY 30

Good

Kimball County, Nebraska · 1.2E Kimball · Structure no. S071 01650

Built
2008
17 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
186 ft
3 main spans
Daily traffic
1,235
2018 count
Owner
State
State Highway Agency

About this bridge

N71 over HWY 30 is a prestressed concrete continuous stringer/multi-beam or girder carrying N71 over HWY 30 in Kimball County, Nebraska. It was built in 2008, so it is 17 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 1,235 vehicles a day, roughly 14% of them trucks, projected to reach 1,606 by 2038. The structure is 186 ft (56.7 m) long and 93 ft wide. If it were closed, the detour would be 18.6 mi (30 km).

CarriesN71
CrossesHWY 30
Location1.2E Kimball
RouteState Highway 71
Coordinates41.2357, -103.638
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating39.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length186 ft (56.7 m)
Longest span100 ft (30.5 m)
Deck width93 ft (28.3 m)
Roadway width89 ft (27.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,235 (2018)
Projected traffic1,606 by 2038
Trucks14%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed18.6 mi (30 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 HWY 30 built?

It was built in 2008, making it 17 years old in 2025.

What condition is N71 over HWY 30 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 October 2023.

How much traffic does N71 over HWY 30 carry?

About 1,235 vehicles per day (2018 count), of which roughly 14% are trucks.

How long is N71 over HWY 30?

The structure is 186 ft (56.7 m) long with a longest span of 100 ft (30.5 m) and a deck 93 ft wide.

Who owns N71 over HWY 30?

It is owned by the State Highway Agency.