US Bridges

County Road over Forest River

PoorPosted for load

Walsh County, North Dakota · 9 South of Grafton · Structure no. 000000050143191

Built
1918
107 years old
Condition
Poor
inspected October 2024
Type
Truss - Thru
Steel
Length
81 ft
1 main span
Daily traffic
18
2022 count
Owner
County
County Highway Agency

About this bridge

County Road over Forest River is a steel truss - thru carrying County Road over Forest River in Walsh County, North Dakota. It was built in 1918, so it is 107 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 poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 18 vehicles a day, roughly 12% of them trucks, projected to reach 25 by 2042. The structure is 81 ft (24.7 m) long and 18 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Road
CrossesForest River
Location9 South of Grafton
RouteCounty Highway 0
Coordinates48.27917, -97.38338
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating5.6 US tons
Inventory rating3.3 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length81 ft (24.7 m)
Longest span79 ft (24.1 m)
Deck width18 ft (5.5 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18 (2022)
Projected traffic25 by 2042
Trucks12%
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 statusListed on the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$272,000
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road over Forest River built?

It was built in 1918, making it 107 years old in 2025.

What condition is County Road over Forest River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does County Road over Forest River carry?

About 18 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is County Road over Forest River?

The structure is 81 ft (24.7 m) long with a longest span of 79 ft (24.1 m) and a deck 18 ft wide.

Who owns County Road over Forest River?

It is owned by the County Highway Agency.