US Bridges

County Road over Forest River

Fair

Grand Forks County, North Dakota · 2 North Inkster · Structure no. 000000018112020

Built
1973
52 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
110 ft
2 main spans
Daily traffic
32
2019 count
Owner
County
County Highway Agency

About this bridge

County Road over Forest River is a prestressed concrete box beam or girders - multiple carrying County Road over Forest River in Grand Forks County, North Dakota. It was built in 1973, so it is 52 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 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 32 vehicles a day, projected to reach 32 by 2039. The structure is 110 ft (33.6 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Road
CrossesForest River
Location2 North Inkster
RouteCounty Highway 0
CountyGrand Forks County
StateNorth Dakota
Coordinates48.17936, -97.64386
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 protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating69.1 US tons
Inventory rating41.4 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length110 ft (33.6 m)
Longest span54 ft (16.5 m)
Deck width27 ft (8.2 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32 (2019)
Projected traffic32 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$114,000
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road over Forest River built?

It was built in 1973, making it 52 years old in 2025.

What condition is County Road over Forest 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 September 2023.

How much traffic does County Road over Forest River carry?

About 32 vehicles per day (2019 count).

How long is County Road over Forest River?

The structure is 110 ft (33.6 m) long with a longest span of 54 ft (16.5 m) and a deck 27 ft wide.

Who owns County Road over Forest River?

It is owned by the County Highway Agency.