US Bridges

County Highway over I-29/CASHEL Interchange

Fair

Walsh County, North Dakota · 4 North Nd 17 · Structure no. 0029179876

Built
1974
51 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
265 ft
4 main spans
Daily traffic
230
2019 count
Owner
State
State Highway Agency

About this bridge

County Highway over I-29/CASHEL Interchange is a steel continuous stringer/multi-beam or girder carrying County Highway over I-29/CASHEL Interchange in Walsh County, North Dakota. It was built in 1974, so it is 51 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 230 vehicles a day, roughly 12% of them trucks, projected to reach 230 by 2039. The structure is 265 ft (80.8 m) long and 35 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesCounty Highway
CrossesI-29/CASHEL Interchange
Location4 North Nd 17
RouteCounty Highway 5006
CountyWalsh County
StateNorth Dakota
Coordinates48.47047, -97.19044
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating61.2 US tons
Inventory rating36.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length265 ft (80.8 m)
Longest span93 ft (28.3 m)
Deck width35 ft (10.6 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic230 (2019)
Projected traffic230 by 2039
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was County Highway over I-29/CASHEL Interchange built?

It was built in 1974, making it 51 years old in 2025.

What condition is County Highway over I-29/CASHEL Interchange 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 August 2023.

How much traffic does County Highway over I-29/CASHEL Interchange carry?

About 230 vehicles per day (2019 count), of which roughly 12% are trucks.

How long is County Highway over I-29/CASHEL Interchange?

The structure is 265 ft (80.8 m) long with a longest span of 93 ft (28.3 m) and a deck 35 ft wide.

Who owns County Highway over I-29/CASHEL Interchange?

It is owned by the State Highway Agency.