US Bridges

N2 over Dismal River

Fair

Blaine County, Nebraska · 0S Dunning · Structure no. S002 23822

Built
1935
90 years old, rebuilt 1994
Condition
Fair
inspected November 2024
Type
Tee Beam
Prestressed Concrete
Length
125 ft
3 main spans
Daily traffic
1,320
2018 count
Owner
State
State Highway Agency

About this bridge

N2 over Dismal River is a prestressed concrete tee beam carrying N2 over Dismal River in Blaine County, Nebraska. It was built in 1935 and reconstructed in 1994, so it is 90 years old, older 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 1,320 vehicles a day, roughly 22% of them trucks, projected to reach 1,782 by 2038. The structure is 125 ft (38.1 m) long and 46 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

CarriesN2
CrossesDismal River
Location0S Dunning
RouteState Highway 2
Coordinates41.8226, -100.1009
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.5 US tons
Inventory rating54 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length125 ft (38.1 m)
Longest span46 ft (14 m)
Deck width46 ft (14.1 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,320 (2018)
Projected traffic1,782 by 2038
Trucks22%
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 Dismal River built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1994.

What condition is N2 over Dismal 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 Dismal River carry?

About 1,320 vehicles per day (2018 count), of which roughly 22% are trucks.

How long is N2 over Dismal River?

The structure is 125 ft (38.1 m) long with a longest span of 46 ft (14 m) and a deck 46 ft wide.

Who owns N2 over Dismal River?

It is owned by the State Highway Agency.