US Bridges

N39 over Loup River Overflow

Good

Nance County, Nebraska · 2S Genoa · Structure no. S039 01798

Built
2019
6 years old
Condition
Good
inspected December 2022
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
230 ft
3 main spans
Daily traffic
1,520
2018 count
Owner
State
State Highway Agency

About this bridge

N39 over Loup River Overflow is a steel continuous stringer/multi-beam or girder carrying N39 over Loup River Overflow in Nance County, Nebraska. It was built in 2019, so it is 6 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 1,520 vehicles a day, roughly 10% of them trucks, projected to reach 1,976 by 2038. The structure is 230 ft (70.1 m) long and 43 ft wide. If it were closed, the detour would be 37.3 mi (60 km).

CarriesN39
CrossesLoup River Overflow
Location2S Genoa
RouteState Highway 39
Coordinates41.4148, -97.7213
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.2 US tons
Inventory rating59.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length230 ft (70.1 m)
Longest span90 ft (27.4 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,520 (2018)
Projected traffic1,976 by 2038
Trucks10%
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 N39 over Loup River Overflow built?

It was built in 2019, making it 6 years old in 2025.

What condition is N39 over Loup River Overflow 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 December 2022.

How much traffic does N39 over Loup River Overflow carry?

About 1,520 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is N39 over Loup River Overflow?

The structure is 230 ft (70.1 m) long with a longest span of 90 ft (27.4 m) and a deck 43 ft wide.

Who owns N39 over Loup River Overflow?

It is owned by the State Highway Agency.