US Bridges

County Highway over Pembina River

PoorPosted for load

Cavalier County, North Dakota · 5 East 1 South of Vang · Structure no. 000000010145080

Built
1919
106 years old
Condition
Poor
inspected August 2024
Type
Truss - Thru
Steel
Length
61 ft
1 main span
Daily traffic
15
2018 count
Owner
County
County Highway Agency

About this bridge

County Highway over Pembina River is a steel truss - thru carrying County Highway over Pembina River in Cavalier County, North Dakota. It was built in 1919, so it is 106 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 15 vehicles a day, projected to reach 15 by 2038. The structure is 61 ft (18.6 m) long and 18 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesCounty Highway
CrossesPembina River
Location5 East 1 South of Vang
RouteCounty Highway 0
Coordinates48.89628, -98.01948
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionAugust 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 geometry8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating9.9 US tons
Inventory rating6 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length61 ft (18.6 m)
Longest span59 ft (18 m)
Deck width18 ft (5.5 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2018)
Projected traffic15 by 2038
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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$260,000
NavigationNo navigation control on waterway

Frequently asked questions

When was County Highway over Pembina River built?

It was built in 1919, making it 106 years old in 2025.

What condition is County Highway over Pembina 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 August 2024.

How much traffic does County Highway over Pembina River carry?

About 15 vehicles per day (2018 count).

How long is County Highway over Pembina River?

The structure is 61 ft (18.6 m) long with a longest span of 59 ft (18 m) and a deck 18 ft wide.

Who owns County Highway over Pembina River?

It is owned by the County Highway Agency.