US Bridges

66th ST SW over Creek

Good

Hettinger County, North Dakota · 1 East 2 North of Regent · Structure no. 000000021120120

Built
1971
54 years old
Condition
Good
inspected September 2024
Type
Channel Beam
Concrete
Length
25 ft
1 main span
Daily traffic
20
2018 count
Owner
County
County Highway Agency

About this bridge

66th ST SW over Creek is a concrete channel beam carrying 66th ST SW over Creek in Hettinger County, North Dakota. It was built in 1971, so it is 54 years old, older 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 20 vehicles a day, projected to reach 10 by 2038. The structure is 25 ft (7.6 m) long and 22 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries66th ST SW
CrossesCreek
Location1 East 2 North of Regent
RouteCounty Highway 0
Coordinates46.45683, -102.52456
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.2 US tons
Inventory rating40.2 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckOther
Main spans1
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span23 ft (7 m)
Deck width22 ft (6.8 m)
Roadway width21 ft (6.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2018)
Projected traffic10 by 2038
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 66th ST SW over Creek built?

It was built in 1971, making it 54 years old in 2025.

What condition is 66th ST SW over Creek 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 66th ST SW over Creek carry?

About 20 vehicles per day (2018 count).

How long is 66th ST SW over Creek?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m) and a deck 22 ft wide.

Who owns 66th ST SW over Creek?

It is owned by the County Highway Agency.