US Bridges

County Highway over So. Branch Forest River

Fair

Grand Forks County, North Dakota · 7 West 1 North Inkster · Structure no. 000000018105022

Built
1968
57 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
50
2019 count
Owner
County
County Highway Agency

About this bridge

County Highway over So. Branch Forest River is a prestressed concrete box beam or girders - multiple carrying County Highway over So. Branch Forest River in Grand Forks County, North Dakota. It was built in 1968, so it is 57 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 50 vehicles a day, projected to reach 50 by 2039. The structure is 60 ft (18.3 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCounty Highway
CrossesSo. Branch Forest River
Location7 West 1 North Inkster
RouteCounty Highway 1819
CountyGrand Forks County
StateNorth Dakota
Coordinates48.16684, -97.79539
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 alignment8: Equal to present desirable criteria
Operating rating64.2 US tons
Inventory rating38.4 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length60 ft (18.3 m)
Longest span59 ft (17.9 m)
Deck width27 ft (8.2 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2019)
Projected traffic50 by 2039
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$63,000
NavigationNo navigation control on waterway

Frequently asked questions

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

It was built in 1968, making it 57 years old in 2025.

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

About 50 vehicles per day (2019 count).

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

The structure is 60 ft (18.3 m) long with a longest span of 59 ft (17.9 m) and a deck 27 ft wide.

Who owns County Highway over So. Branch Forest River?

It is owned by the County Highway Agency.