US Bridges

N2 over Middle Loup River

Fair

Blaine County, Nebraska · 0N Dunning · Structure no. S002 23764

Built
1989
36 years old
Condition
Fair
inspected November 2024
Type
Slab
Concrete Continuous
Length
122 ft
3 main spans
Daily traffic
1,315
2018 count
Owner
State
State Highway Agency

About this bridge

N2 over Middle Loup River is a concrete continuous slab carrying N2 over Middle Loup River in Blaine County, Nebraska. It was built in 1989, so it is 36 years old, younger than the Nebraska average of 47.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,315 vehicles a day, roughly 20% of them trucks, projected to reach 1,775 by 2038. The structure is 122 ft (37.2 m) long and 62 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

CarriesN2
CrossesMiddle Loup River
Location0N Dunning
RouteState Highway 2
Coordinates41.831, -100.1005
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.3 US tons
Inventory rating38.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length122 ft (37.2 m)
Longest span48 ft (14.6 m)
Deck width62 ft (19 m)
Roadway width60 ft (18.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,315 (2018)
Projected traffic1,775 by 2038
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed12.4 mi (20 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 N2 over Middle Loup River built?

It was built in 1989, making it 36 years old in 2025.

What condition is N2 over Middle Loup River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2024.

How much traffic does N2 over Middle Loup River carry?

About 1,315 vehicles per day (2018 count), of which roughly 20% are trucks.

How long is N2 over Middle Loup River?

The structure is 122 ft (37.2 m) long with a longest span of 48 ft (14.6 m) and a deck 62 ft wide.

Who owns N2 over Middle Loup River?

It is owned by the State Highway Agency.