US Bridges

County Highway over Mauvais Coulee

Poor

Towner County, North Dakota · 5 North 2 East of Cando · Structure no. 000000048117310

Built
1966
59 years old
Condition
Poor
inspected August 2024
Type
Channel Beam
Concrete
Length
24 ft
1 main span
Daily traffic
10
2018 count
Owner
County
County Highway Agency

About this bridge

County Highway over Mauvais Coulee is a concrete channel beam carrying County Highway over Mauvais Coulee in Towner County, North Dakota. It was built in 1966, so it is 59 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 10 vehicles a day, projected to reach 10 by 2038. The structure is 24 ft (7.3 m) long and 23 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCounty Highway
CrossesMauvais Coulee
Location5 North 2 East of Cando
RouteCounty Highway 0
CountyTowner County
StateNorth Dakota
Coordinates48.55895, -99.16163
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating80.4 US tons
Inventory rating48.2 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span22 ft (6.7 m)
Deck width23 ft (6.9 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2018)
Projected traffic10 by 2038
Trucks—
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 County Highway over Mauvais Coulee built?

It was built in 1966, making it 59 years old in 2025.

What condition is County Highway over Mauvais Coulee in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2024.

How much traffic does County Highway over Mauvais Coulee carry?

About 10 vehicles per day (2018 count).

How long is County Highway over Mauvais Coulee?

The structure is 24 ft (7.3 m) long with a longest span of 22 ft (6.7 m) and a deck 23 ft wide.

Who owns County Highway over Mauvais Coulee?

It is owned by the County Highway Agency.