US Bridges

County Road over Forest River

Good

Grand Forks County, North Dakota · 4 East 2 North Inkster · Structure no. 000000018116010

Built
1993
32 years old
Condition
Good
inspected September 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
100 ft
2 main spans
Daily traffic
100
2019 count
Owner
County
County Highway Agency

About this bridge

County Road over Forest River is a prestressed concrete continuous box beam or girders - single or spread carrying County Road over Forest River in Grand Forks County, North Dakota. It was built in 1993, so it is 32 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 100 by 2039. The structure is 100 ft (30.4 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Road
CrossesForest River
Location4 East 2 North Inkster
RouteCounty Highway 0
CountyGrand Forks County
StateNorth Dakota
Coordinates48.18393, -97.55744
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.9 US tons
Inventory rating26.9 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length100 ft (30.4 m)
Longest span49 ft (15 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2019)
Projected traffic100 by 2039
Trucks10%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road over Forest River built?

It was built in 1993, making it 32 years old in 2025.

What condition is County Road over Forest River 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 2023.

How much traffic does County Road over Forest River carry?

About 100 vehicles per day (2019 count), of which roughly 10% are trucks.

How long is County Road over Forest River?

The structure is 100 ft (30.4 m) long with a longest span of 49 ft (15 m) and a deck 30 ft wide.

Who owns County Road over Forest River?

It is owned by the County Highway Agency.