US Bridges

Carney ST over Dismal River

Good

Blaine County, Nebraska · .2S Dunning · Structure no. C000501705P

Built
2018
7 years old
Condition
Good
inspected September 2022
Type
Stringer/Multi-beam or Girder
Concrete
Length
99 ft
3 main spans
Daily traffic
80
2022 count
Owner
County
County Highway Agency

About this bridge

Carney ST over Dismal River is a concrete stringer/multi-beam or girder carrying Carney ST over Dismal River in Blaine County, Nebraska. It was built in 2018, so it is 7 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 80 vehicles a day, roughly 5% of them trucks, projected to reach 80 by 2028. The structure is 99 ft (30.2 m) long and 26 ft wide. If it were closed, the detour would be 18.6 mi (30 km).

CarriesCarney ST
CrossesDismal River
Location.2S Dunning
RouteCounty Highway 7318
Coordinates41.8206, -100.1065
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionSeptember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54 US tons
Inventory rating40.8 US tons

Structure

MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHL 93
Structure length99 ft (30.2 m)
Longest span32 ft (9.9 m)
Deck width26 ft (7.8 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2022)
Projected traffic80 by 2028
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18.6 mi (30 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Carney ST over Dismal River built?

It was built in 2018, making it 7 years old in 2025.

What condition is Carney ST over Dismal 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 September 2022.

How much traffic does Carney ST over Dismal River carry?

About 80 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Carney ST over Dismal River?

The structure is 99 ft (30.2 m) long with a longest span of 32 ft (9.9 m) and a deck 26 ft wide.

Who owns Carney ST over Dismal River?

It is owned by the County Highway Agency.