4.b) Engineer's Comments_ Amundson Variance
September 17, 2015
Brenda Eklund
Deputy Clerk
14727 209 th Street N
Scandia, MN 55073
Re: 20575 St Croix Trail/Amundson Variance Application
Dear Brenda:
We have completed our review of the Certificate of Survey and Application for 20575 St Croix
Trail/Amundson Variance and have prepared the following comments.
1. Proposed project will disturb fifty (50) cubic yards or more and/or disturbance of 1,000 square
feet or more along with clearing trees. This will require a Grading/Land Alteration Permit
Application. The following items shall be submitted with the application:
a. Erosion & Sediment Control Plan.
b. Existing 12 inch corrugated metal culvert shown on the survey currently drains right to
the southwest corner of the proposed building. Final plans should include a site plan
showing grading/pipe relocation to ensure drainage has been redirected away from the
foundation of the proposed structure.
c. 205 th Street N is a public street that has existing concrete curb & gutter. Other driveways
that connect to 205th Street N consist of driveways that are constructed of material that
does not erode. With the proposed building, additional vehicle trips, the final plans
should include a design/driveway material that prohibits erosion and eliminates sediment
entering the curb line and storm structures downstream.
d. Driveway culvert shall be reviewed if necessary to maintain drainage between the
existing curb line of 205 th Street N and south property line.
e. Drainage. Final grading plan shall be completed to reduce potential of erosion and
provide adequate slope around the proposed building.
2. Recommended Owner submit geotechnical soil information within the area of the proposed
building for further review to determine if any potential soil correction or reinforcement may be
necessary in the event poor soils are encountered.
3. Historic aerial review show the existing gravel driveway was built between 4/2011 and 4/2012.
4. All site work shall be in compliance of the Carnelian Marine St. Croix Watershed District.
Sincerely,
Ryan J. Goodman, P.E.
City Engineer