US Bridges

Csah 48 over Cloquet River

Fair

St. Louis County, Minnesota · 1.9 MI N of JCT Csah 43 · Structure no. 69534

Built
1988
37 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
257 ft
3 main spans
Daily traffic
730
2019 count
Owner
County
County Highway Agency

About this bridge

Csah 48 over Cloquet River is a prestressed concrete stringer/multi-beam or girder carrying Csah 48 over Cloquet River in St. Louis County, Minnesota. It was built in 1988, so it is 37 years old, younger 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 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 730 vehicles a day, projected to reach 660 by 2039. The structure is 257 ft (78.4 m) long and 39 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesCsah 48
CrossesCloquet River
Location1.9 MI N of JCT Csah 43
RouteCounty Highway 48
Coordinates46.98326, -92.24406
Functional classRural Minor 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating50 US tons
Inventory rating29.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length257 ft (78.4 m)
Longest span85 ft (25.9 m)
Deck width39 ft (12 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic730 (2019)
Projected traffic660 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 48 over Cloquet River built?

It was built in 1988, making it 37 years old in 2025.

What condition is Csah 48 over Cloquet 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 July 2024.

How much traffic does Csah 48 over Cloquet River carry?

About 730 vehicles per day (2019 count).

How long is Csah 48 over Cloquet River?

The structure is 257 ft (78.4 m) long with a longest span of 85 ft (25.9 m) and a deck 39 ft wide.

Who owns Csah 48 over Cloquet River?

It is owned by the County Highway Agency.