US Bridges

County Road over So. Branch Forest River

Fair

Grand Forks County, North Dakota · 3 North 5 West Inkster · Structure no. 000000018108010

Built
1952
73 years old, rebuilt 2019
Condition
Fair
inspected September 2023
Type
Tee Beam
Prestressed Concrete
Length
32 ft
1 main span
Daily traffic
30
2013 count
Owner
County
County Highway Agency

About this bridge

County Road over So. Branch Forest River is a prestressed concrete tee beam carrying County Road over So. Branch Forest River in Grand Forks County, North Dakota. It was built in 1952 and reconstructed in 2019, so it is 73 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 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 30 vehicles a day, projected to reach 30 by 2033. The structure is 32 ft (9.8 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Road
CrossesSo. Branch Forest River
Location3 North 5 West Inkster
RouteCounty Highway 0
CountyGrand Forks County
StateNorth Dakota
Coordinates48.18759, -97.74365
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating39.6 US tons
Inventory rating30.6 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length32 ft (9.8 m)
Longest span31 ft (9.4 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2013)
Projected traffic30 by 2033
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$32,000
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road over So. Branch Forest River built?

It was built in 1952, making it 73 years old in 2025. It was reconstructed in 2019.

What condition is County Road over So. Branch 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 So. Branch Forest River carry?

About 30 vehicles per day (2013 count).

How long is County Road over So. Branch Forest River?

The structure is 32 ft (9.8 m) long with a longest span of 31 ft (9.4 m) and a deck 28 ft wide.

Who owns County Road over So. Branch Forest River?

It is owned by the County Highway Agency.