US Bridges

Csah 60 over Prairie River

FairPosted for load

Itasca County, Minnesota · 2.1 MI W;n of JCT Csah 7 · Structure no. 31524

Built
1985
40 years old
Condition
Fair
inspected November 2023
Type
Slab
Wood or Timber
Length
128 ft
4 main spans
Daily traffic
400
2020 count
Owner
County
County Highway Agency

About this bridge

Csah 60 over Prairie River is a wood or timber slab carrying Csah 60 over Prairie River in Itasca 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 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. Its operating status is: posted for load restriction.

It carries about 400 vehicles a day, projected to reach 225 by 2040. The structure is 128 ft (39 m) long and 34 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesCsah 60
CrossesPrairie River
Location2.1 MI W;n of JCT Csah 7
RouteCounty Highway 60
CountyItasca County
StateMinnesota
Coordinates47.37822, -93.41322
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 protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.7 US tons
Inventory rating31.3 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans4
Design loadHS 20
Structure length128 ft (39 m)
Longest span32 ft (9.8 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2020)
Projected traffic225 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 60 over Prairie River built?

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

What condition is Csah 60 over Prairie 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 November 2023.

How much traffic does Csah 60 over Prairie River carry?

About 400 vehicles per day (2020 count).

How long is Csah 60 over Prairie River?

The structure is 128 ft (39 m) long with a longest span of 32 ft (9.8 m) and a deck 34 ft wide.

Who owns Csah 60 over Prairie River?

It is owned by the County Highway Agency.