US Bridges

Csah 7 over Artichoke River

Fair

St. Louis County, Minnesota · 0.1 MI S of JCT CSAH47 · Structure no. 7650

Built
1935
90 years old
Condition
Fair
inspected May 2024
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
465
2015 count
Owner
County
County Highway Agency

About this bridge

Csah 7 over Artichoke River is a concrete culvert carrying Csah 7 over Artichoke River in St. Louis County, Minnesota. It was built in 1935, so it is 90 years old, older than the Minnesota average of 38.5 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 465 vehicles a day, projected to reach 465 by 2039. The structure is 22 ft (6.8 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCsah 7
CrossesArtichoke River
Location0.1 MI S of JCT CSAH47
RouteCounty Highway 7
CountySt. Louis County
StateMinnesota
Coordinates46.9741, -92.5731
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating63.4 US tons
Inventory rating38.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 20
Structure length22 ft (6.8 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic465 (2015)
Projected traffic465 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedNone recorded
Estimated improvement cost$18 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 7 over Artichoke River built?

It was built in 1935, making it 90 years old in 2025.

What condition is Csah 7 over Artichoke 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 May 2024.

How much traffic does Csah 7 over Artichoke River carry?

About 465 vehicles per day (2015 count).

How long is Csah 7 over Artichoke River?

The structure is 22 ft (6.8 m) long with a longest span of 10 ft (3 m).

Who owns Csah 7 over Artichoke River?

It is owned by the County Highway Agency.