US Bridges

County Highway over Mauvais Coulee

Fair

Towner County, North Dakota · 5 East 3 South of Cando · Structure no. 000000048120390

Built
1986
39 years old
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
75 ft
1 main span
Daily traffic
20
2018 count
Owner
County
County Highway Agency

About this bridge

County Highway over Mauvais Coulee is a prestressed concrete box beam or girders - single or spread carrying County Highway over Mauvais Coulee in Towner County, North Dakota. It was built in 1986, so it is 39 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 fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 20 vehicles a day, projected to reach 20 by 2038. The structure is 75 ft (22.9 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCounty Highway
CrossesMauvais Coulee
Location5 East 3 South of Cando
RouteCounty Highway 0
CountyTowner County
StateNorth Dakota
Coordinates48.44296, -99.09974
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating80.5 US tons
Inventory rating47.5 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length75 ft (22.9 m)
Longest span71 ft (21.6 m)
Deck width31 ft (9.3 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2018)
Projected traffic20 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 County Highway over Mauvais Coulee built?

It was built in 1986, making it 39 years old in 2025.

What condition is County Highway over Mauvais Coulee in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does County Highway over Mauvais Coulee carry?

About 20 vehicles per day (2018 count).

How long is County Highway over Mauvais Coulee?

The structure is 75 ft (22.9 m) long with a longest span of 71 ft (21.6 m) and a deck 31 ft wide.

Who owns County Highway over Mauvais Coulee?

It is owned by the County Highway Agency.