US Bridges

County Highway over White Earth River

Fair

Mountrail County, North Dakota · At White Earth · Structure no. 000000031106120

Built
2016
9 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
125 ft
3 main spans
Daily traffic
130
2016 count
Owner
County
County Highway Agency

About this bridge

County Highway over White Earth River is a prestressed concrete box beam or girders - single or spread carrying County Highway over White Earth River in Mountrail County, North Dakota. It was built in 2016, so it is 9 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 6 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 130 vehicles a day, roughly 4% of them trucks, projected to reach 130 by 2036. The structure is 125 ft (38.1 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCounty Highway
CrossesWhite Earth River
LocationAt White Earth
RouteCounty Highway 0
CountyMountrail County
StateNorth Dakota
Coordinates48.37556, -102.76738
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.7 US tons
Inventory rating42.1 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length125 ft (38.1 m)
Longest span40 ft (12.2 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic130 (2016)
Projected traffic130 by 2036
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$282,000
NavigationNo navigation control on waterway

Frequently asked questions

When was County Highway over White Earth River built?

It was built in 2016, making it 9 years old in 2025.

What condition is County Highway over White Earth River 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 May 2024.

How much traffic does County Highway over White Earth River carry?

About 130 vehicles per day (2016 count), of which roughly 4% are trucks.

How long is County Highway over White Earth River?

The structure is 125 ft (38.1 m) long with a longest span of 40 ft (12.2 m) and a deck 30 ft wide.

Who owns County Highway over White Earth River?

It is owned by the County Highway Agency.