US Bridges

Nd Highway 1806 over Hans Creek

Good

Dunn County, North Dakota · 6 North 2 East Halliday · Structure no. 1806181480

Built
1984
41 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
82 ft
1 main span
Daily traffic
90
2019 count
Owner
State
State Highway Agency

About this bridge

Nd Highway 1806 over Hans Creek is a prestressed concrete box beam or girders - single or spread carrying Nd Highway 1806 over Hans Creek in Dunn County, North Dakota. It was built in 1984, so it is 41 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 90 vehicles a day, roughly 22% of them trucks, projected to reach 90 by 2039. The structure is 82 ft (25 m) long and 38 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesNd Highway 1806
CrossesHans Creek
Location6 North 2 East Halliday
RouteState Highway 1806
Coordinates47.44366, -102.28235
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating77.1 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length82 ft (25 m)
Longest span78 ft (23.8 m)
Deck width38 ft (11.7 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90 (2019)
Projected traffic90 by 2039
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 km)
TollOn a free road
National Highway SystemNo

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 Nd Highway 1806 over Hans Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is Nd Highway 1806 over Hans 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 October 2023.

How much traffic does Nd Highway 1806 over Hans Creek carry?

About 90 vehicles per day (2019 count), of which roughly 22% are trucks.

How long is Nd Highway 1806 over Hans Creek?

The structure is 82 ft (25 m) long with a longest span of 78 ft (23.8 m) and a deck 38 ft wide.

Who owns Nd Highway 1806 over Hans Creek?

It is owned by the State Highway Agency.