US Bridges

Csah 22 over Main Ditch

PoorPosted for load

Pipestone County, Minnesota · 0.3 MI W of JCT TH 75 · Structure no. 59513

Built
1970
55 years old
Condition
Poor
inspected October 2024
Type
Channel Beam
Prestressed Concrete
Length
69 ft
3 main spans
Daily traffic
475
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 22 over Main Ditch is a prestressed concrete channel beam carrying Csah 22 over Main Ditch in Pipestone County, Minnesota. It was built in 1970, so it is 55 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 475 vehicles a day, projected to reach 520 by 2042. The structure is 69 ft (21.1 m) long and 41 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCsah 22
CrossesMain Ditch
Location0.3 MI W of JCT TH 75
RouteCounty Highway 22
CountyPipestone County
StateMinnesota
Coordinates44.0086, -96.31443
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating22.2 US tons
Inventory rating17.2 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length69 ft (21.1 m)
Longest span31 ft (9.5 m)
Deck width41 ft (12.6 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic475 (2022)
Projected traffic520 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$725 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 22 over Main Ditch built?

It was built in 1970, making it 55 years old in 2025.

What condition is Csah 22 over Main Ditch in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does Csah 22 over Main Ditch carry?

About 475 vehicles per day (2022 count).

How long is Csah 22 over Main Ditch?

The structure is 69 ft (21.1 m) long with a longest span of 31 ft (9.5 m) and a deck 41 ft wide.

Who owns Csah 22 over Main Ditch?

It is owned by the County Highway Agency.