US Bridges

3 Mile Bridge Road over Duck Creek

Good

Adams County, North Dakota · 2 West 7 North Hettinger · Structure no. 000000001115120

Built
1982
43 years old
Condition
Good
inspected September 2021
Type
Culvert
Concrete
Length
42 ft
4 main spans
Daily traffic
70
2017 count
Owner
County
County Highway Agency

About this bridge

3 Mile Bridge Road over Duck Creek is a concrete culvert carrying 3 Mile Bridge Road over Duck Creek in Adams County, North Dakota. It was built in 1982, so it is 43 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 70 vehicles a day, roughly 10% of them trucks, projected to reach 100 by 2037. The structure is 42 ft (12.8 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Carries3 Mile Bridge Road
CrossesDuck Creek
Location2 West 7 North Hettinger
RouteCounty Highway 115
Coordinates46.12097, -102.68431
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length42 ft (12.8 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2017)
Projected traffic100 by 2037
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 3 Mile Bridge Road over Duck Creek built?

It was built in 1982, making it 43 years old in 2025.

What condition is 3 Mile Bridge Road over Duck 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 2021.

How much traffic does 3 Mile Bridge Road over Duck Creek carry?

About 70 vehicles per day (2017 count), of which roughly 10% are trucks.

How long is 3 Mile Bridge Road over Duck Creek?

The structure is 42 ft (12.8 m) long with a longest span of 10 ft (3 m).

Who owns 3 Mile Bridge Road over Duck Creek?

It is owned by the County Highway Agency.