US Bridges

N70 over Middle Loup River

Good

Valley County, Nebraska · Wcl Arcadia · Structure no. S070 10197

Built
2009
16 years old, rebuilt 2017
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
365 ft
4 main spans
Daily traffic
745
2018 count
Owner
State
State Highway Agency

About this bridge

N70 over Middle Loup River is a steel continuous stringer/multi-beam or girder carrying N70 over Middle Loup River in Valley County, Nebraska. It was built in 2009 and reconstructed in 2017, so it is 16 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 745 vehicles a day, roughly 13% of them trucks, projected to reach 969 by 2038. The structure is 365 ft (111.3 m) long and 39 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

CarriesN70
CrossesMiddle Loup River
LocationWcl Arcadia
RouteState Highway 70
Coordinates41.4225, -99.1316
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.6 US tons
Inventory rating38.6 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length365 ft (111.3 m)
Longest span100 ft (30.5 m)
Deck width39 ft (11.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic745 (2018)
Projected traffic969 by 2038
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed12.4 mi (20 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N70 over Middle Loup River built?

It was built in 2009, making it 16 years old in 2025. It was reconstructed in 2017.

What condition is N70 over Middle Loup River 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 2024.

How much traffic does N70 over Middle Loup River carry?

About 745 vehicles per day (2018 count), of which roughly 13% are trucks.

How long is N70 over Middle Loup River?

The structure is 365 ft (111.3 m) long with a longest span of 100 ft (30.5 m) and a deck 39 ft wide.

Who owns N70 over Middle Loup River?

It is owned by the State Highway Agency.