US Bridges

Csah 4 over Canby Creek

Good

Yellow Medicine County, Minnesota · 1.9 MI E of JCT Csah 13 · Structure no. 87557

Built
1987
38 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
123 ft
3 main spans
Daily traffic
255
2021 count
Owner
County
County Highway Agency

About this bridge

Csah 4 over Canby Creek is a steel continuous stringer/multi-beam or girder carrying Csah 4 over Canby Creek in Yellow Medicine County, Minnesota. It was built in 1987, so it is 38 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 255 vehicles a day, projected to reach 275 by 2041. The structure is 123 ft (37.4 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCsah 4
CrossesCanby Creek
Location1.9 MI E of JCT Csah 13
RouteCounty Highway 4
Coordinates44.7914, -96.23824
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.1 US tons
Inventory rating39.6 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length123 ft (37.4 m)
Longest span45 ft (13.7 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic255 (2021)
Projected traffic275 by 2041
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 4 over Canby Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is Csah 4 over Canby Creek 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 2023.

How much traffic does Csah 4 over Canby Creek carry?

About 255 vehicles per day (2021 count).

How long is Csah 4 over Canby Creek?

The structure is 123 ft (37.4 m) long with a longest span of 45 ft (13.7 m) and a deck 35 ft wide.

Who owns Csah 4 over Canby Creek?

It is owned by the County Highway Agency.