US Bridges

County Highway over Irrigation Canal

FairPosted for load

McKenzie County, North Dakota · 1 South of Dore · Structure no. 000000027102161

Built
1946
79 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
84 ft
3 main spans
Daily traffic
20
2018 count
Owner
County
County Highway Agency

About this bridge

County Highway over Irrigation Canal is a steel stringer/multi-beam or girder carrying County Highway over Irrigation Canal in McKenzie County, North Dakota. It was built in 1946, so it is 79 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. Its operating status is: posted for load restriction.

It carries about 20 vehicles a day, projected to reach 20 by 2038. The structure is 84 ft (25.6 m) long and 22 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesCounty Highway
CrossesIrrigation Canal
Location1 South of Dore
RouteCounty Highway 0
CountyMcKenzie County
StateNorth Dakota
Coordinates47.90621, -104.02848
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.9 US tons
Inventory rating22 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length84 ft (25.6 m)
Longest span25 ft (7.6 m)
Deck width22 ft (6.6 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2018)
Projected traffic20 by 2038
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$219,000
NavigationNo navigation control on waterway

Frequently asked questions

When was County Highway over Irrigation Canal built?

It was built in 1946, making it 79 years old in 2025.

What condition is County Highway over Irrigation Canal 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 November 2024.

How much traffic does County Highway over Irrigation Canal carry?

About 20 vehicles per day (2018 count).

How long is County Highway over Irrigation Canal?

The structure is 84 ft (25.6 m) long with a longest span of 25 ft (7.6 m) and a deck 22 ft wide.

Who owns County Highway over Irrigation Canal?

It is owned by the County Highway Agency.