US Bridges

102 Ave SW over Cannonball River

Good

Hettinger County, North Dakota · 1 E. of Regent · Structure no. 000000021118150

Built
1990
35 years old
Condition
Good
inspected September 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
142 ft
3 main spans
Daily traffic
355
2018 count
Owner
County
County Highway Agency

About this bridge

102 Ave SW over Cannonball River is a prestressed concrete continuous box beam or girders - single or spread carrying 102 Ave SW over Cannonball River in Hettinger County, North Dakota. It was built in 1990, so it is 35 years old, younger than the North Dakota average of 48.2 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 355 vehicles a day, roughly 10% of them trucks, projected to reach 600 by 2038. The structure is 142 ft (43.3 m) long and 33 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Carries102 Ave SW
CrossesCannonball River
Location1 E. of Regent
RouteCounty Highway 2117
Coordinates46.42676, -102.55032
Functional classRural Major Collector

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; extensive scour has occurred
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.1 US tons
Inventory rating22.3 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length142 ft (43.3 m)
Longest span53 ft (16.2 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic355 (2018)
Projected traffic600 by 2038
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 102 Ave SW over Cannonball River built?

It was built in 1990, making it 35 years old in 2025.

What condition is 102 Ave SW over Cannonball 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 2024.

How much traffic does 102 Ave SW over Cannonball River carry?

About 355 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is 102 Ave SW over Cannonball River?

The structure is 142 ft (43.3 m) long with a longest span of 53 ft (16.2 m) and a deck 33 ft wide.

Who owns 102 Ave SW over Cannonball River?

It is owned by the County Highway Agency.