US Bridges

Csah 17 over Ditch # 12

Fair

Clay County, Minnesota · 1.1 MI S of JCT CR 79 · Structure no. 90869

Built
1965
60 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
25 ft
1 main span
Daily traffic
395
2021 count
Owner
County
County Highway Agency

About this bridge

Csah 17 over Ditch # 12 is a steel stringer/multi-beam or girder carrying Csah 17 over Ditch # 12 in Clay County, Minnesota. It was built in 1965, so it is 60 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 5 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 395 vehicles a day, projected to reach 280 by 2041. The structure is 25 ft (7.6 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCsah 17
CrossesDitch # 12
Location1.1 MI S of JCT CR 79
RouteCounty Highway 17
CountyClay County
StateMinnesota
Coordinates46.83361, -96.58894
Functional classRural Major 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.7 US tons
Inventory rating40.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span23 ft (7 m)
Deck width29 ft (8.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic395 (2021)
Projected traffic280 by 2041
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$76 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 17 over Ditch # 12 built?

It was built in 1965, making it 60 years old in 2025.

What condition is Csah 17 over Ditch # 12 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 October 2024.

How much traffic does Csah 17 over Ditch # 12 carry?

About 395 vehicles per day (2021 count).

How long is Csah 17 over Ditch # 12?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m) and a deck 29 ft wide.

Who owns Csah 17 over Ditch # 12?

It is owned by the County Highway Agency.