US Bridges

Csah 8 over Cloquet River

Good

St. Louis County, Minnesota · 1.1 MI W of JCT TH 33 · Structure no. 69525

Built
1985
40 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
259 ft
3 main spans
Daily traffic
70
2015 count
Owner
County
County Highway Agency

About this bridge

Csah 8 over Cloquet River is a prestressed concrete stringer/multi-beam or girder carrying Csah 8 over Cloquet River in St. Louis County, Minnesota. It was built in 1985, so it is 40 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 70 vehicles a day, projected to reach 70 by 2039. The structure is 259 ft (79 m) long and 31 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesCsah 8
CrossesCloquet River
Location1.1 MI W of JCT TH 33
RouteCounty Highway 8
Coordinates46.92389, -92.49336
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating65.1 US tons
Inventory rating38.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length259 ft (79 m)
Longest span84 ft (25.7 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2015)
Projected traffic70 by 2039
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 8 over Cloquet River built?

It was built in 1985, making it 40 years old in 2025.

What condition is Csah 8 over Cloquet River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

How much traffic does Csah 8 over Cloquet River carry?

About 70 vehicles per day (2015 count).

How long is Csah 8 over Cloquet River?

The structure is 259 ft (79 m) long with a longest span of 84 ft (25.7 m) and a deck 31 ft wide.

Who owns Csah 8 over Cloquet River?

It is owned by the County Highway Agency.