US Bridges

CR 70 over Ditch

GoodPosted for load

Clay County, Minnesota · 0.5 MI E of JCT Csah 5 · Structure no. 92929

Built
1972
53 years old
Condition
Good
inspected November 2024
Type
Slab
Wood or Timber
Length
32 ft
1 main span
Daily traffic
20
2013 count
Owner
County
County Highway Agency

About this bridge

CR 70 over Ditch is a wood or timber slab carrying CR 70 over Ditch in Clay County, Minnesota. It was built in 1972, so it is 53 years old, older 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. Its operating status is: posted for load restriction.

It carries about 20 vehicles a day, projected to reach 20 by 2039. The structure is 32 ft (9.8 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCR 70
CrossesDitch
Location0.5 MI E of JCT Csah 5
RouteCounty Highway 70
Coordinates47.12231, -96.72171
Functional classRural Minor 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.5 US tons
Inventory rating34.5 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span30 ft (9.1 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2013)
Projected traffic20 by 2039
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 70 over Ditch built?

It was built in 1972, making it 53 years old in 2025.

What condition is CR 70 over Ditch 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 November 2024.

How much traffic does CR 70 over Ditch carry?

About 20 vehicles per day (2013 count).

How long is CR 70 over Ditch?

The structure is 32 ft (9.8 m) long with a longest span of 30 ft (9.1 m) and a deck 30 ft wide.

Who owns CR 70 over Ditch?

It is owned by the County Highway Agency.