US Bridges

Csah 1 over Miss. R. Diversion Chan.

Good

Aitkin County, Minnesota · 0.1 MI S of JCT Csah 21 · Structure no. 01527

Built
2010
15 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
219 ft
3 main spans
Daily traffic
325
2016 count
Owner
County
County Highway Agency

About this bridge

Csah 1 over Miss. R. Diversion Chan. is a prestressed concrete stringer/multi-beam or girder carrying Csah 1 over Miss. R. Diversion Chan. in Aitkin County, Minnesota. It was built in 2010, so it is 15 years old, younger 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 325 vehicles a day, projected to reach 325 by 2039. The structure is 219 ft (66.8 m) long and 39 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCsah 1
CrossesMiss. R. Diversion Chan.
Location0.1 MI S of JCT Csah 21
RouteCounty Highway 1
CountyAitkin County
StateMinnesota
Coordinates46.59224, -93.68694
Functional classRural Major 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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.9 US tons
Inventory rating52.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length219 ft (66.8 m)
Longest span73 ft (22.3 m)
Deck width39 ft (12 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic325 (2016)
Projected traffic325 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 1 over Miss. R. Diversion Chan. built?

It was built in 2010, making it 15 years old in 2025.

What condition is Csah 1 over Miss. R. Diversion Chan. 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 October 2024.

How much traffic does Csah 1 over Miss. R. Diversion Chan. carry?

About 325 vehicles per day (2016 count).

How long is Csah 1 over Miss. R. Diversion Chan.?

The structure is 219 ft (66.8 m) long with a longest span of 73 ft (22.3 m) and a deck 39 ft wide.

Who owns Csah 1 over Miss. R. Diversion Chan.?

It is owned by the County Highway Agency.