HomeMy WebLinkAbout4B 4234 140th Street CUP Report
4646 Dakota Street SE
Prior Lake, MN 55372
PLANNING COMMISSION AGENDA REPORT
MEETING DATE: SEPTEMBER 23, 2019
AGENDA #: 4B
PREPARED BY: JEFF MATZKE, PLANNER
PRESENTED BY:
PUBLIC HEARING:
JEFF MATZKE
YES
AGENDA ITEM:
PUBLIC HEARING TO CONSIDER A CONDITIONAL USE PERMIT TO AL-
LOW GRADING AND LAND RECLAMATION IN EXCESS OF 400 CUBIC
YARDS AT 4234 140th STREET NW
DISCUSSION: Introduction
Parkhaven Holdings LLC has applied for a conditional use permit to allow grad-
ing and land reclamation of the property located at 4234 140th Street NW. The
subject site is located north of County Highway 42, east of County Highway 21,
and west of Pike Lake.
History
On May 21, 2017 the applicant received approval of a preliminary plat and pre-
liminary planned unit development (PUD) for a 55-lot low density residential sub-
division (along with an area of commercial development) to be known as
Parkhaven. The applicant has demolished the previous house on the site but
has not yet performed and further construction activities.
Current Circumstances
The following paragraphs outline the physical characteristics of the existing site,
the Comprehensive Plan and zoning designations, and a description of some of
the specifics of the proposed site.
PHYSICAL SITE CHARACTERISTICS:
Total Site Area: The project area is approximately 4.9 acres.
Topography: The subject site varies in elevation from 840 MSL to 890 MSL.
Vegetation: The site is largely wooded.
Wetlands: No wetlands are currently indicated on the site.
Access: Access to the site is via a shared driveway from 140th Street (Hwy 42)
and from Hwy 21.
2030 Comprehensive Plan Designation: This property is designated R-LD for
Urban Low Density Residential use on the 2030 Comprehensive Plan Land Use
Map.
Zoning: The site area is zoned PUD (Planned Unit Development).
2
Under Section 1101.509 (2) of the Zoning Ordinance, land reclamation involving
the placement of over 400 cubic yards of fill shall be permitted by CUP. Details
regarding the excavation project may include, but are not limited to, site plans
which show the finished grade of the land after the excavation has been com-
pleted, the type of material to be extracted from the land, general maintenance
of the site and adjacent area, and controls to be employed to limit the effect of
wind or other elements on the site and the material extracted from the site.
The Conditional Use Permit shall impose conditions upon the owner of the land to
be reclaimed, the developer, and the person doing the land reclamation work which
will ensure that the type of fill used is appropriate for the proposed land use and
prevent damage to the community and adjacent land owners during the course of
reclamation. Those conditions may impose restrictions in all areas affecting the
reclamation, and the City may require a Letter of Credit to insure the performance
of the conditions imposed and the completion of the work in the manner described
in the plan and Conditional Use Permit. No permit shall be granted for a period
longer than 12 months.
One of the main purposes of a public hearing for a project such as this is to
inform the neighboring properties about the project and to allow the public to
comment and ask questions about the proposed project. Projects which gener-
ally involve this amount of grading have public hearings through a platting or
development process. In this case, the property owner has chosen to complete
the grading aspect at this time for an area which may in the future be a lot sub-
division with possible platting of the property and future public hearings.
Conclusions
City Staff have been in contact with the applicant regarding drainage flows and
the final grading plan of the site located at 4234 140th Street. The applicant
desires to complete the grading on 4234 140th Street (commercial Outlot D of
the Parkhaven plat) at the same time as the rest of the residential subdivision
grading. Since grading wasn’t previously approved upon the area of Outlot D,
the applicant has requested this conditional use permit for grading impacts. The
applicant is currently revising the plans to respond to the City Staff memorandum
comments regarding stormwater and grading matters. A grading permit is
required through the Engineering Department prior to any site grading. The
applicant proposes to conduct the project in the Fall of 2019 along with possible
grading of the Parkhaven residential subdivision. City Staff has included a draft
approval resolution, with the following conditions of approval per the previously
approved CUP from 2015:
1. The filling and land reclamation must be done according to plans stamped
approved by the City Engineering Dept.
2. The cleanup of fill material as a result of spills or general transportation of fill
on any public road shall be the responsibility of the applicant.
3. The Conditional Use Permit is subject to the issuance of required permits
from all applicable governmental agencies.
4. The CUP is valid for one year for land reclamation, but is revocable at any
time for noncompliance with any condition contained herein. At the expira-
tion of its one (1) year term, the property owner may make application to the
3
City to renew the CUP. The initial approval of this CUP does not create any
right, in law or equity, to the renewal thereof.
5. The applicant shall provide a security for all tree removals in accordance with
the Tree Preservation City Code (Section 1107.2100)
6. The applicant shall revise the plans in accordance with the September 16,
2019, 2018 City Public Works Dept. Memorandum
ISSUES: CONDITIONAL USE PERMIT (CUP) ANALYSIS:
Section 1108.200 of the City Code sets forth the criteria for approval of a CUP.
(1) The use is consistent with and supportive of the goals and
policies of the Comprehensive Plan.
Objective 4 under the goal of Security within the 2030 Comprehensive
Plan is to enact and maintain policies and ordinances to ensure the
safety and preservation of property. The purpose of review of this
Conditional Use Permit is to ensure that erosion control and adequate
storm water analysis is completed to ensure no negative impacts to the
overall area. It also provides for the notification of the project to the
surrounding properties regarding the activity which is proposed.
(2) The use will not be detrimental to the health, safety, morals and
general welfare of the community as a whole.
Based on staff review, the proposed use will not be detrimental to the
health, safety, morals and general welfare of the community. The con-
ditions of the approving resolution are intended to ensure ongoing pro-
tection of the community.
(3) The use is consistent with the intent and purpose of the Zoning
Ordinance and the Use District in which the Conditional Use is
located.
Section 1101.509 of the Zoning Ordinance allows Grading, Filling and
Land Reclamation as a Conditional Use within any zoning district. The
conditions set forth in the Zoning Ordinance will be met with the
issuance of the Conditional Use Permit.
(4) The use will not have undue adverse impacts on governmental fa-
cilities, services, or improvements which are either existing or
proposed.
The use will not have adverse impacts on governmental facilities. No
government services exist within the project land reclamation area.
(5) The use will not have undue adverse impacts on the use and en-
joyment of properties in close proximity to the conditional use.
The use will not have undue adverse impacts on the use and enjoyment
of properties in close proximity as long as all conditions of approval are
adhered to including but not limited to erosion control requirements and
cleanup of any streets in the project area.
4
(6) The use is subject to the design and other requirements of site
and landscape plans prepared by or under the direction of a pro-
fessional landscape architect, or civil engineer registered in the
State of Minnesota.
The use will adhere to the design requirements of the City.
(7) The use is subject to drainage and utility plans prepared by a
professional civil engineer registered in the State of Minnesota
which illustrate locations of city water, city sewer, fire hydrants,
manholes, power, telephone and cable lines, natural gas mains,
and other service facilities.
The applicant has submitted engineering plans identifying locations of
utilities.
(8) The use is subject to such other additional conditions which the
City Council may find necessary to protect the general welfare,
public safety and neighborhood character. Such additional
conditions may be imposed in those situations where the other
dimensional standards, performance standards, conditions or
requirements in this Ordinance are insufficient to achieve the
objectives contained in subsection 1108.202. In these
circumstances, the City Council may impose restrictions and
conditions on the CUP which are more stringent than those set
forth in the Ordinance and which are consistent with the general
conditions above. The additional conditions shall be set forth in
the CUP approved by the City Council.
Additional conditions to ensure the protection of the general health,
safety and welfare of the public are included as part of the CUP. These
conditions include approval of permits from other governmental
agencies, approval of a City grading permit, and a submittal of a
security to cover the costs of restoration.
ALTERNATIVES: 1. Motion and a second to approve the Conditional Use Permit for 4234 140th
Street NW subject to the listed conditions.
2. Motion and a second to table this item to a date specific and provide the
applicant with direction on the issues that have been discussed.
3. Motion and a second to deny the request based on specific findings of fact.
RECOMMENDED
MOTION:
Alternative #1
EXHIBITS: 1. Draft Resolution 19-XXPC
2. Location Map
3. Applicant Narrative
4. Project Plan dated August 30, 2019
1
4646 Dakota Street SE
Prior Lake, MN 55372
RESOLUTION 19-XXPC
A RESOLUTION TO APPROVE A CONDITIONAL USE PERMIT TO ALLOW GRADING AND
LAND RECLAMATION IN EXCESS OF 400 CUBIC YARDS AT 4324 140TH STREET NW
Motion By: Second By:
WHEREAS, The Prior Lake Planning Commission conducted a public hearing on September 23,
2019, to consider a request from Parkhaven Holdings LLC to approve a Conditional
Use Permit (CUP) to allow grading and land reclamation in excess of 400 cubic yards
at the following property:
4324 140th Street NW
(PID 259230070)
Legal Description: That part of the Southwest Quarter of the Southwest Quarter of
Section 23, Township 115, Range 22, Scott County, Minnesota, described as
follows:
Commencing at a point on the South line of said Southwest Quarter of the
Southwest Quarter distant 995.98 feet West of the Southeast corner thereof;
thence Northerly and parallel with the East line of said Southwest Quarter of the
Southwest Quarter a distance of 779.72 feet to the actual point of beginning of the
land to be described; thence Easterly and parallel with said South line a distance of
409.97 feet; thence Northerly and parallel with said East line a distance of 531.63
feet to the North line of said Southwest Quarter of the Southwest Quarter; thence
Westerly along the North line a distance of 409.98 feet to its intersection with a line
drawn Northerly from the point of beginning and parallel with said East line of the
Southwest Quarter of the Southwest Quarter; thence Southerly along said parallel
line to the point of beginning.
EXCEPT that part which is denoted and shown as Parcel 8 on Scott County Right
of Way Plat No. 58, according to the recorded plat thereof on file in the Office of the
County Recorder in and for Scott County, Minnesota.
WHEREAS, Notice of the public hearing on said CUP was duly published in accordance with the
applicable Prior Lake Ordinances; and
WHEREAS, The Planning Commission proceeded to hear all persons interested in this CUP, and
persons interested were afforded the opportunity to present their views and
objections related to the CUP; and
WHEREAS, The Planning Commission finds the proposed CUP is compatible with the stated
purposes and intent of the Zoning Ordinance as they relate to conditionally
permitted uses, and further, that the proposed CUP meets the criteria for approval
of CUP as contained in Subsection 1108.202 of the Prior Lake Zoning Ordinance
NOW THEREFORE, BE IT HEREBY RESOLVED BY THE PLANNING COMMISSION OF
PRIOR LAKE, MINNESOTA as follows:
1. The recitals set forth above are incorporated herein.
2
2. The Planning Commission hereby adopts the following findings:
a) The use is consistent with and supportive of the goals and policies of the
Comprehensive Plan.
Objective 4 under the goal of Security within the 2030 Comprehensive Plan is to enact
and maintain policies and ordinances to ensure the safety and preservation of
property. The purpose of review of this Conditional Use Permit is to ensure that
erosion control and adequate storm water analysis is completed to ensure no negative
impacts to the overall area. It also provides for the notification of the project to the
surrounding properties regarding the activity which is proposed.
b) The use will not be detrimental to the health, safety, morals and general welfare
of the community as a whole.
Based on staff review, the proposed use will not be detrimental to the health, safety,
morals and general welfare of the community. The conditions of the approving
resolution are intended to ensure ongoing protection of the community.
c) The use is consistent with the intent and purpose of the Zoning Ordinance and
the Use District in which the Conditional Use is located.
Section 1101.509 of the Zoning Ordinance allows Grading, Filling and Land
Reclamation as a Conditional Use within any zoning district. The conditions set forth
in the Zoning Ordinance will be met with the issuance of the Conditional Use Permit.
d) The use will not have undue adverse impacts on governmental facilities,
services, or improvements which are either existing or proposed.
The use will not have adverse impacts on governmental facilities. No government
services exist within the project land reclamation area.
e) The use will not have undue adverse impacts on the use and enjoyment of
properties in close proximity to the conditional use.
The use will not have undue adverse impacts on the use and enjoyment of properties
in close proximity as long as all conditions of approval are adhered to including but
not limited to erosion control requirements and cleanup of any streets in the project
area.
f) The use is subject to the design and other requirements of site and landscape
plans prepared by or under the direction of a professional landscape architect,
or civil engineer registered in the State of Minnesota, approved by the Planning
Commission and incorporated as part of the conditions imposed on the use by
the Planning Commission.
The use will adhere to the design requirements of the City.
g) The use is subject to drainage and utility plans prepared by a professional civil
engineer registered in the State of Minnesota which illustrate locations of city
water, city sewer, fire hydrants, manholes, power, telephone and cable lines,
natural gas mains, and other service facilities. The plans shall be included as
part of the conditions set forth in the CUP approved by the Planning
Commission.
The applicant has submitted former approved plans prepared by a civil engineer which
illustrate existing and drainage and utility details for the site.
3
h) The use is subject to such other additional conditions which the Planning
Commission may find necessary to protect the general welfare, public safety
and neighborhood character. Such additional conditions may be imposed in
those situations where the other dimensional standards, performance
standards, conditions or requirements in this Ordinance are insufficient to
achieve the objectives contained in subsection 1108.202. In these
circumstances, the Planning Commission may impose restrictions and
conditions on the CUP which are more stringent than those set forth in the
Ordinance and which are consistent with the general conditions above. The
additional conditions shall be set forth in the CUP approved by the Planning
Commission.
Additional conditions to ensure the protection of the general health, safety and
welfare of the public are included as part of the CUP. These conditions include
approval of permits from other governmental agencies, approval of a City grading
permit, and a submittal of a security to cover the costs of restoration.
3. The CUP is hereby approved, subject to the following conditions:
a. The filling and land reclamation must be done according to plans stamped approved
by the City Engineering Dept.
b. The cleanup of fill material as a result of spills or general transportation of fill on any
public road shall be the responsibility of the applicant.
c. The Conditional Use Permit is subject to the issuance of required permits from all
applicable governmental agencies.
d. The CUP is valid for one year for land reclamation, but is revocable at any time for
noncompliance with any condition contained herein. At the expiration of its one (1)
year term, the property owner may make application to the City to renew the CUP.
The initial approval of this CUP does not create any right, in law or equity, to the
renewal thereof.
e. The applicant shall provide a security for all tree removals in accordance with the Tree
Preservation City Code (Section 1107.2100)
f. The applicant shall revise the plans in accordance with the September 16, 2019, 2018
City Public Works Dept. Memorandum.
PASSED AND ADOPTED THIS 23RD DAY OF September 2019.
_______________________________
Bryan Fleming, Commission Chair
Attest: ______________________________
Casey McCabe, Community Development Director
VOTE Fleming Kallberg Ringstad Tschetter Tieman
Aye ☐ ☐ ☐ ☐ ☐
Nay ☐ ☐ ☐ ☐ ☐
Absent ☐ ☐ ☐ ☐ ☐
Abstain ☐ ☐ ☐ ☐ ☐
140TH ST NEEAGLE CREEK AV140TH ST NW
Pike Lake
Scott County GIS
Ü
ParkhavenConditional Use Permit
Location Map
UP P ER PR IO R L A K EGD
(90 4 )
SP R IN G L AK EGD
(91 2 .8 )
LO WE R P RI O R LA K EGD
(90 4 )
PI KELA K E
NE(82 0 .5 )
MY S T ICLA K E
NE
HA A SLA K E
NE(90 7 .3 )
BL IN DLA K E
RD(94 8 .7 )
AR T ICLA K E
NE(90 6 .7 )
MA R K LE YLA K E
RD( )
HO WA R D LA K ENE
(95 7 .3 )
CR Y ST A L LA K ENE
(94 3 .3 )
RI CE L A K ENE
(94 5 )
CL E AR Y L A KENE
CA MP BE L LLA K E
NE(N ot E st ab .)
Scott County GIS
SUBJECTPROPERTY
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Subject
Property
120 S. 6th South
Suite 1220
Minneapolis, MN 55402
Telephone:763.484.4181
www.graef-usa.com
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SHEET NUMBER:08/19/2019DRAWN BY:APPROVED BY:SCALE:CHECKED BY:DATE:PROJECT NUMBER: 20198054TRYMAWRLHAS NOTEDPROJECT INFORMATION:SHEET TITLE:CONSULTANTS:BOHLEN LAND SURVEYINGCONDITIONAL USE PERMITOUTLOT D CONDITIONAL USEPERMIT APPLICATIONPROJECT TITLE:NO. DATE REVISIONS BYHWY 21 AND HWY 42, PIKE LAKE, MNX:\MN\2019\20198054\Design\CAD\00\Outlot D\C_00_G0-01-Cover_80548/29/2019 12:42 PM5432154321BACBACwww.graef-usa.com120 S. 6th Street,Suite 1220Minneapolis, MN 55402-1803763 / 898 4185PARKHAVEN AT PIKE LAKEPRIOR LAKE, MNCLIENT: PARKHAVEN HOLDINGS, LLCTERRY FORBORD, PRINCIPAL4960 SUSSEX PLACESHOREWOOD, MN 55331 PROJECT MANAGER AND CIVIL ENGINEER:GRAEFROGER HUMPHREY PE, RLS120 S. 6th STREET, SUITE 1220MINNEAPOLIS, MN 55402-1830ROGER.HUMPHREY@GRAEF-USA.COMTEL: 763-898-4185LANDSCAPE ARCHITECT:GRAEFINDEX OF DRAWINGSSHEET NO. DESCRIPTIONGENERALG0.01 COVER SHEETG0.02 LEGEND AND ABBREVIATIONSSURVEYV3.01 PRELIMINARY PLAT OVERALL WITH OUTLOT DCIVILC0.01 EXISTING CONDITIONS & REMOVALS PLANC1.00 OVERALL SITE PLANC2.00 OVERALL GRADING PLANC3.00 EROSION AND SEDIMENT CONTROL PLANC9.01 - C9.02 PROJECT DETAILSLANDSCAPEL0.01 OVERALL TREE REMOVAL PLANL0.04 - L0.06 TREE INVENTORYGRAEF PROJECT NO: 2019-8054NNOTE: WORKING HOURS ARE FROM 7:00 AM - 7:00 PM MONDAY THROUGH FRIDAY AND 8:00 AM - 5:00 PM SATURDAY.COVER SHEETOUTLOT D CONDITIONALUSE PERMIT APPLICATION
515423373536342733323129282526535552650871431391112141516171819202130Outlot HOutlot COutlot B5Outlot IN00°28'39"E322.77N89°15'23"W409.97N00°28'39"E138.00N00°28'39"E 641.72N89°15'23"W 191.59381.33S11°59'46"W680.27S00°28'39"WN89°19'34"W198.27257.89S00°28'39"W671.20S89°19'34"E1311.58S00°41'19"W905.59S89°23'48"ER=2037.03Δ=2°35'14"L=91.99R=2024.86Δ=5°56'58"L=210.25N89°15'23"W520.01102Outlot AOutlot G2422Outlot DOutlot DROWOutlot EOutlot F394042454143464449474838N11°45'51"W 614.25R=2034.86Δ=9°40'01"L=343.32N11°45'51"W101.43N45°04'50"W74.08N01°09'50"E78.30N46°37'36"E71.8710.03S89°21'08"E25.59N89°23'48"WSoutheast corner of Southwest Quarter
of the Southwest Quarter of Sec. 23,
Twp. 115, Rng. 22
South line of Southwest Quarter of the
Southwest Quarter of Sec. 23, Twp.115, Rng. 22West line of Southwest Quarter of theSouthwest Quarter of Sec. 23, Twp.115, Rng. 22West line of North Half of the SouthwestQuarter of Sec. 23, Twp. 115, Rng. 22EXCEPTIONPARCEL 8, SCOTT COUNTY RIGHT OF WAY PLAT NO. 58Parallel with the West line of theSoutheast Quarter of the SouthwestQuarter of Sec. 23, Twp. 115, Rng. 22East line of West 400.00 feet of theSoutheast Quarter of the SouthwestQuarter of Sec. 23, Twp. 115, Rng. 22East line of Southwest Quarter of theSouthwest Quarter of Sec. 23, Twp.115, Rng. 22North line of North Half of theSouthwest Quarter of Sec. 23, Twp.115, Rng. 2230 foot easement per for additional treeclearing rights, per Doc. No. 86628(Book 137 of Deeds, Pages 361-372)dated August 3rd, 1956 in favor ofNorthern States Power
30 foot easement per for additionaltree clearing rights, per Doc. No.86628 (Book 137 of Deeds, Pages361-372) dated August 3rd, 1956 infavor of Northern States Power200 foot easement per Doc. No. 86628(Book 137 of Deeds, Pages 361-372)dated August 3rd, 1956 in favor ofNorthern States Power SHEET NUMBER:08/19/2019DRAWN BY:APPROVED BY:SCALE:CHECKED BY:DATE:PROJECT NUMBER: 20198054TRYMAWRLHAS NOTEDPROJECT INFORMATION:SHEET TITLE:CONSULTANTS:BOHLEN LAND SURVEYINGCONDITIONAL USE PERMITOUTLOT D CONDITIONAL USEPERMIT APPLICATIONPROJECT TITLE:NO. DATE REVISIONS BYHWY 21 AND HWY 42, PIKE LAKE, MNX:\MN\2019\20198054\Design\CAD\00\Outlot D\C_00_V4-01-Preliminary Plat_80548/29/2019 4:58 PM5432154321BACBACwww.graef-usa.com120 S. 6th Street,Suite 1220Minneapolis, MN 55402-1803763 / 898 4185PRELIMINARY PLAT OVERALL WITHOUTLOT DVICINITY MAP140th STREET NESITEHERRGOTT MEMORI
A
L
D
R PIKE LK TRAILPIKE LAKE105510DRAINAGE & UTILITY EASEMENTSBEING 10 FEET IN WIDTH AND ADJOININGSTREET RIGHT OF WAY LINES AND 5 FEET INWIDTH AND ADJOINING LOT LINES AS SHOWN ONTHIS PLAT, UNLESS OTHERWISE DIMENSIONED. SHOWN THUS:VICINITY MAPPARKHAVEN AT PIKE LAKEOUTLOT D REFERENCE TOTHE PRELIMINARY PLAT OF PARKHAVEN AT PIKE LAKEPRELIMINARY PLAT NOTES:
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WETLANDSROAD AROAD COutlot COutlot ESHEET NUMBER:08/19/2019DRAWN BY:APPROVED BY:SCALE:CHECKED BY:DATE:PROJECT NUMBER: 20198054TRYMAWRLHAS NOTEDPROJECT INFORMATION:SHEET TITLE:CONSULTANTS:BOHLEN LAND SURVEYINGCONDITIONAL USE PERMITOUTLOT D CONDITIONAL USEPERMIT APPLICATIONPROJECT TITLE:NO. DATE REVISIONS BYHWY 21 AND HWY 42, PIKE LAKE, MNX:\MN\2019\20198054\Design\CAD\00\Outlot D\C_00_C1-00-Overall Site Plan_80548/29/2019 5:12 PM5432154321BACBACwww.graef-usa.com120 S. 6th Street,Suite 1220Minneapolis, MN 55402-1803763 / 898 4185OVERALL SITE PLANDEVELOPMENT DATAExisting Zoning: A: AgriculturalProposed Zoning: CommercialGross Site Area: 279,260 SF (6.41 AC) Less, Outlot D ROW Area: - 21,792 SF (0.50 AC)Less, Untouched Areas: - 9,324 SF (0.21 AC)Net Commercial Site Area To Be Disturbed: 248,144 SF (5.70 AC)
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Outlot CSHEET NUMBER:08/19/2019DRAWN BY:APPROVED BY:SCALE:CHECKED BY:DATE:PROJECT NUMBER: 20198054TRYMAWRLHAS NOTEDPROJECT INFORMATION:SHEET TITLE:CONSULTANTS:BOHLEN LAND SURVEYINGCONDITIONAL USE PERMITOUTLOT D CONDITIONAL USEPERMIT APPLICATIONPROJECT TITLE:NO. DATE REVISIONS BYHWY 21 AND HWY 42, PIKE LAKE, MNX:\MN\2019\20198054\Design\CAD\00\Outlot D\C_00_C2-00-Overall Grading Plan_80548/29/2019 4:53 PM5432154321BACBACwww.graef-usa.com120 S. 6th Street,Suite 1220Minneapolis, MN 55402-1803763 / 898 4185OVERALL GRADING PLAN
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DATE REVISIONS BYHWY 21 AND HWY 42, PIKE LAKE, MNX:\MN\2019\20198054\Design\CAD\00\Outlot D\OLD\8.29_C_00_L0-01-Overall Tree Removal Plan_80548/29/2019 4:49 PM5432154321BACBACwww.graef-usa.com120 S. 6th Street,Suite 1220Minneapolis, MN 55402-1803763 / 898 4185OVERALL TREE REMOVAL PLANTREE REMOVED AS PART OF RESIDENTIAL PRELIMINARY PLATAPPROVAL WHICH IS IN OUTLOT DTREE TO BE REMOVED WITHIN OUTLOT DTREE WITHIN UTILITY EASEMENT OF OUTLOT DTREE TO BE SAVED WITHIN OUTLOT DTREE OUTSIDE OF OUTLOT D BOUNDARYTREE REMOVAL LEGENDTotal Caliper inches of TreesCaliperinches*Total Caliper Inches of All Trees on Oulot D5303less, Trees in Outlot D for Residential Grading as part ofPreliminary Plat Approval Previously Accounted For645Less, Caliper inches of trees in streets, and utilityeasements, Being Removed563Equals, Total Caliper inches of trees within Outlot D Area4095Calculation of Allowable Caliper inches of TreeRemoval with out ReplacementAllowable removal 35%Total Caliper inches of trees within lot areas, times 0.351433Allowable removal, Caliper inches1433Calculation of Caliper Inches of Trees Being SavedTotal Caliper inches of trees within C.U.P. area4095Less, Caliper Inches of Tree Removal3940Equals, Caliper Inches of Trees Begin Saved155Calculation of Caliper Inches of Trees to BeReplacedCaliper Inches of Tree Removal3940Less, Caliper Inches of Allowable Tree Removal1433Equals, Total Caliper Inches to be replaced2507Tree replacement formulaTotal Caliper inches to be replaced2507Divided by 2 (1107.2105(3) a1253Total Caliper Inches to be Replaced Divided by 2(1107.2105(3) a1253Less, Caliper Inches of Heritage Trees Saved Multiplied by2 144Caliper Inches of Trees To Be Replaced1109divide by average 3 caliper inches per replacement treeNumber of Replacement Trees370Number of trees replaced with preliminary plat asapproved106Number of trees left to be replaced264
Phone 952.447.9800 / Fax 952.447.4245 / www.cityofpriorlake.com
Memo
Date: September 16, 2019
To: Community Development
From: Nick Monserud, Assistant City Engineer
Pete Young, Water Resources Engineer
Subject: Parkhaven Outlot D Grading Plans (Project #DEV18-000004)
The Public Works Department has reviewed the Grading plans for Outlot D with a plan revision
date of 8/19/2019. Comments highlighted in bold text are of particular concern:
General
1. All Parkhaven Preliminary Plat comments will need to be addressed prior to issuing
the CUP.
2. Site work associated with the Outlot D CUP will require a state NPDES permit and
SWPPP. Plan note on Sheet C3.00 is acknowledged: “Erosion control for Outlot D to run
concurrently with the Parkhaven final grading plan”.
3. Will “Temporary Sedimentation” ultimately be permanent with the future Parkhaven
development? Please show design assumptions and how it works with the rest of the
property.
4. Include wetland buffer signage (monument locations and sign detail) on the grading plan.
5. Any modifications to the Prior Lake Outlet Channel (PLOC) crossings for grading will
need to be reviewed and permitted/approved by the DNR and PLSLWD. Address
PLSLWD comments listed below.
Grading
1. Please show how grading accommodates a future road access to the adjacent property.
2. Please show hauling routes for dirt.
Erosion and Sediment Control
1. Sediment control measures must be installed and inspected prior to tree removal and
grading operation.
2. Temporary sedimentation basin does not have any outlet. Please show how water will
discharge.
3. Provide a double row of silt fence or other sediment control BMP between disturbed
areas and all receiving waters (including wetlands and the PLOC).
4. Address Overall Parkhaven SWPPP comments.
Prior Lake-Spring Lake Watershed District Comments:
1. Proposed grading expands the width of the existing crossing of the Prior Lake Outlet
Channel (PLOC). Details of this proposed crossing/haul road improvement should be
required including a crossing detail and specification of culvert(s) size, length, type,
invert elevations to ensure flow capacity is maintained.
2. The PLOC is public water and may require a MnDNR Public Water Permit for the
crossing. Coordination with the Area Hydrologist is required.
3. Temporary sediment pond sizing calculations should be required of the applicant.
4. Temporary sediment pond should be provided with an outlet structure and stabilized
EOF.
5. It appears the temporary sedimentation pond will ultimately be part of permanent
stormwater controls. Is an adequate maintenance bench afforded by the proposed grading
plan or should the pond be shifted further west?
6. Redundant sediment control (silt fence or erosion control logs) should be installed along
entire east grading limits near the PLOC.
7. Additional grade stabilization and erosion control should be specified in concentrated
flow paths.
8. What seed is specified and can grading be accomplished in time to for seeding in
appropriate seeding window before winter?
9. Net-free erosion control blanket should be specified.
10. Grading within PLSLWD PLOC Easement is not proposed but should be explicitly
excluded from City CUP approval.
Parkhaven Remaining Comments:
Grading Plan
1. Please direct impervious areas to stormwater BMPs. Road A is discharging via swale
directly to the outlet channel without treatment. Please provide treatment prior to
discharging to outlet channel.
2. Retaining walls within public right-of-way and Outlots to be dedicated to the City shall
be modular block. No boulder walls are allowed.
3. Back yard swale behind lots 37-40 shall be 2% or steeper.
4. Road A dead end is approximately 12’ higher than the neighboring property.
Please show how this will work in the future.
Storm Sewer
1. Show storm basin outlets drainage paths stabilization to prevent erosion for these
paths.
2. Are the ditch checks shown on the erosion control plan to be permanent or are they
temporary until the site is stabilized? Will the HOA maintain swales and ditch
checks?
3. The backyard swale for lots 42-46 is shown draining over part of the proposed trail.
Please put in a culvert to avoid this.
Stormwater Management
1. Basin 1 – since there is no overland EOF 2’ below house low openings, please show
100-yr back to back HWLs. Low openings shall be a minimum of 2’ above this
HWL if allowed.
2. Stormwater rate control requirements appear to meet the intent of the rate control
requirements for the Prior Lake Outlet Channel rate control district using on-site credits.
Additional details for stormwater BMPs are needed, as outlined in other comments.
3. Curve number reduction is being used to meet some volume control requirements. Please
include more details for each credit including location of tree plantings being used for
credits and natural area preservation. Please include details showing how impervious
disconnection will be accomplished.
4. P8 model calculations must be based on an average water year for the Twin Cities in
terms of total precipitation and distribution of rainfall events. The submitted calculations
use 1971-1972 data which does not appear to be average for the region. The 1995 water
year (October 1994 through September 1995) is suggested.
5. Provide details for all stormwater management BMPs. Stormwater ponds should include
dead storage contours and filtration details must be included. Include information on how
the swale will provide volume control. Show underdrains on plan sheets. Designs must
meet MN Stormwater Manual requirements.
6. Show NWLs and 100-yr high water levels for all stormwater BMPs on all plan sheets.
Label BMPs on all plan sheets.
7. Show existing and proposed HWLs and buffers for wetlands on all plan sheets.
8. Include details for pond control structures.
Overall Parkhaven SWPPP
1. If permanent stormwater basins will be used as temporary sediment basins during
construction, provide details showing how they will be restored after this use. Include
detail and design information for sediment basins with the SWPPP.
2. SWPPP must indicate that the development is tributary to Pike Lake, an impaired water.
NPDES permit sections 23.9 and 23.10 apply to the project.
3. Document all trained individuals as required by the NPDES permit, sections 5.20 and
21.2-21.3.
4. Update map to include drainage area boundaries, flow arrows, and all discharge points
[NPDES 5.9].
5. Describe methods to minimize soil compaction and preserve topsoil [NPDES 5.24].
6. Include stabilization timelines [NPDES 8.4].
7. Include ditch/swale stabilization requirements [NPDES 8.6].
8. Include energy dissipation requirement [NPDES 8.9].
9. Document reasons for not including a 50-foot natural buffer between disturbed areas of
the site and surface water; includes Pike Lake and conveyances that drain to Pike Lake
[NPDES 9.17].
10. Include dewatering and basin draining provisions [NPDES 10.2-10.5].
11. Include inspections and maintenance provisions [NPDES 11.2-11.11].
12. Include pollution prevention management measures [NPDES 12.2-12.9].
13. Provide temporary sediment basin design information [NPDES 14.3-14.9].