PC SUM 2007 03 06
CHANHASSEN PLANNING COMMISSION
REGULAR MEETING
SUMMARY MINUTES
MARCH 6, 2007
Chairman McDonald called the meeting to order at 7:00 p.m.
MEMBERS PRESENT:
Jerry McDonald, Kathleen Thomas, Kurt Papke, Kevin Dillon and
Debbie Larson
MEMBERS ABSENT:
Mark Undestad and Dan Keefe
STAFF PRESENT:
Kate Aanenson, Community Development Director; Bob Generous, Senior
Planner; and Alyson Fauske, Assistant City Engineer
PUBLIC PRESENT FOR ALL ITEMS:
Thor Smith 2139 Boulder Road
Phil DeNucci 9186 Springfield Drive
Richard Simmons 530 Summerhill Drive
Corey Bergman 6791 Redwing Lane
Tom Koehnen 795 Ponderosa Drive
PUBLIC HEARING:
HEARTLAND BUILDING EXPANSION: SITE PLAN APPROVAL FOR A 31,200
SQUARE FOOT OFFICE WAREHOUSE EXPANSION TO AN EXISTING 101,600
SQUARE FOOT BUILDING WITH A VARIANCE FOR PROPERTY ZONED
PLANNED UNIT DEVELOPMENT LOCATED AT 7975 CENTURY BOULEVARD
(LOT 1, BLOCK 1, ARBORETUM BUSINESS PARK), MARTIN WOODY
ARCHITECTS, PLANNING CASE 07-05.
Public Present:
Name Address
Peter Kordonowy 810 Ramsey Avenue
Martin Woody 4048 Spruce Road
Bob Generous presented the staff report on this item. Commissioner Dillon asked staff to
elaborate on the safety concern with the windows. Commissioner Papke asked staff to explain
the 50% transparency requirement and the variance request. Chairman McDonald asked for
further clarification on the variance request. Peter Kordonowy, Summerhill Commercial Real
Estate, property manager for the building and representing Heartland America, provided
background information on the building and why they cannot meet the 50% transparency
requirement. Martin Woody, elaborated on the architectural detailing of the building and the
process of converting the knock out panels to windows. Chairman McDonald opened the public
Planning Commission Summary - March 6, 2007
hearing. No one spoke and the public hearing was closed. Chairman McDonald suggested the
Planning Commission revisit the ordinance requiring 50% transparency at a future meeting.
After commission comments and discussion, the following motion was made.
Papke moved, Larson seconded that the Planning Commission recommends that the City
Council approve Planning Case 07-05 for a 31,200 square-foot office warehouse expansion to
an existing 101,600 square-foot building with a variance to permit only 10 percent building
transparency on the northern building elevation, plans prepared by Martin Woody
Architects, dated February 2, 2007, subject to the following conditions:
1.The applicant shall enter into a site plan agreement with the City and provide the necessary
security to guarantee erosion control, site restoration and landscaping.
2.The developer shall incorporate a gathering space in the northeast corner of the site including
benches and or tables overlooking the natural areas to the east.
3.If the interior of the north end of the building is converted to offices, windows shall be
installed along that area of the building.
4.The developer shall extend a sidewalk from the building to the sidewalk on Water Tower
Place and include pedestrian ramps at all curbs.
5.The applicant shall have a minimum of 9 canopy trees, 23 understory trees and 23 shrubs
along Water Tower Place.
6.The applicant shall replace the evergreens located in the northwest parking lot peninsula with
overstory, deciduous trees.
7.A revised landscape plan shall be submitted before building permit issuance which specifies
size, quantity and species of proposed plantings.
8.The building addition is required to have an automatic fire extinguishing system.
9.All plans must be prepared and signed by design professionals licensed in the State of
Minnesota.
10.Inlet protection shall be installed around all catch basins after installation and maintained
until final stabilization occurs.
11.The plans shall be revised to address issues that could arise as the result of run-on in the
northwest corner of the site.
12.Silt fences shall be installed with J-hooks to prevent runoff from running around the end of
the silt fences.
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Planning Commission Summary - March 6, 2007
13.Until building construction begins, the rock construction entrance shall be 75 feet in length in
accordance with the City’s standard detail.
14.Erosion control blanket shall be installed on all slopes greater than or equal to 3:1. All
exposed soil areas shall have temporary erosion protection or permanent cover year round,
according to the following table of slopes and time frames:
Type of Slope Time (Maximum time an area can
Steeper than 3:1 7 days remain open when the area
10:1 to 3:1 14 days is not actively being worked.)
Flatter than 10:1 21 days
These areas include constructed storm water management pond side slopes, and any exposed
soil areas with a positive slope to a storm water conveyance system, such as a curb and gutter
system, storm sewer inlet, temporary or permanent drainage ditch or other natural or man
made systems that discharge to a surface water.
15.Street cleaning of soil tracked onto public streets shall include daily street scraping and street
sweeping as needed.
16.The applicant shall apply for and obtain permits from the appropriate regulatory agencies
(e.g., Riley-Purgatory-Bluff Creek Watershed District, Minnesota Pollution Control Agency
(NPDES Phase II Construction Site Permit)) and comply with their conditions of approval.
17.Provide drainage area maps and calculations to ensure that they are the same as what was
previously accepted.
18.Provide rational method calculations for the storm sewer.
19.Ground (i.e. non-paved) surface grades shall not be less than 2%. Paved grades shall not be
less than 1%. Grades along curb line must not be less than .5%.
20.Emergency overflow locations and elevations must be shown on the plan.
21.An easement is required from the appropriate property owner for any off-site grading.
22.If importing or exporting material for development of the site is necessary, the applicant will
be required to supply the City with detailed haul routes.
23.Areas disturbed areas in City right of way must be sodded.
24.Show heavy duty and light duty pavement sections on the plans.
nd
25.Access for tractor trailers shall be limited to 82 Street.”
All voted in favor and the motion carried unanimously with a vote of 5 to 0.
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Planning Commission Summary - March 6, 2007
PUBLIC HEARING:
CHANHASSEN HIGH SCHOOL: REZONING FROM AGRICULTURAL ESTATE
DISTRICT, A2 AND PLANNED UNIT DEVELOPMENT, PUD TO OFFICE AND
INSTITUTIONAL DISTRICT, OI; SITE PLAN APPROVAL WITH VARIANCES FOR
A HIGH SCHOOL CAMPUS INCLUDING AN APPROXIMATELY 406,000 SQUARE
FOOT, THREE STORY BUILDING, ATHLETIC FIELDS, CONCESSION BUILDING,
STADIUM, STORAGE/MAINTENANCE BUILDINGS AND PARKING LOTS;
CONDITIONAL USE PERMIT WITH VARIANCES FOR DEVELOPMENT WITHIN
THE BLUFF CREEK OVERLAY DISTRICT; AND WETLAND ALTERATION
PERMIT FOR THE GRADING AND FILLING OF WETLANDS ON SITE. THE
PROPERTY IS LOCATED NORTH OF LYMAN BOULEVARD, SOUTH OF THE
TWIN CITIES AND WESTERN RAILROAD, AND WEST OF BLUFF CREEK.
APPLICANT, ANDERSON-JOHNSON ASSOCIATES, INC., AND INDEPENDENT
SCHOOL DISTRICT 112, PLANNING CASE 07-06.
Public Present:
Name Address
Mark Bosch 1709 Windsor Drive South, Shakopee
st
Steve Miller 244 1 Avenue No., Minneapolis
Todd Iverson 14329 Rutgers Street, Prior Lake
Jonathan Duesman 3349 Irving Avenue So., Minneapolis
Jay Pomeroy 7575 Golden Valley Road, Minneapolis
Paul Schlueter 11 Peavey Road, Chaska
Steve Pumper 11 Peavey Road, Chaska
Thor Smith 2139 Boulder Road
Jeff Moody 1800 Sunridge Court
Dennis Chadderdon 8900 Audubon Road
Barbara & Andy Kayati 8715 Valley View Place
Al Gomez 8748 Valley View Place
Joel Lehrke 2329 Boulder Road
Bob Generous presented the staff report on this item. Kate Aanenson added that an
environmental assessment was done on this site for the grading permit and all plans are
consistent with the recommendations of that Environmental Assessment. Also a reminder that
th
the comments received from the neighborhood meeting held on January 18 with the school
district and city staff were also included in the packet. Alyson Fauske elaborated on the number
and location of retaining walls on the site. Commissioner Papke asked for clarification on the
appearance of the gas pipeline, the design of the bus entrance, traffic flow and safety concerns
with locating the school on a gas pipeline, and next to a railroad tracks and electrical substation.
Chairman McDonald asked about the trade off for granting of the variance for development in
the Bluff Creek primary zone. Steve Pumper, Director of Finance and Operations for District
112 introduced Jay Pomeroy, the civil engineer with Anderson-Johnson Associates who
reviewed the layout of the site, parking, and retaining walls. Steve Miller with Rozeboom Miller
Architects explained the layout of the school and showed renderings of exterior elevations.
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Planning Commission Summary - March 6, 2007
Chairman McDonald opened the public hearing. Andy Kayati, 8715 Valley View Place asked
for clarification on the construction and materials being used in the retaining walls, especially
those facing his neighborhood. He asked staff to consider signage to address the possibility of
students using their streets for parking during school hours and special events. He requested that
the windows be of non-reflective material, additional landscaping be used to break up the large
expanse of the school building, and that the school address the issue of trash possibly blowing
into his neighborhood. Al Gomez, 8748 Valley View Place had concern with the variance and
grading requests. He supported the addition of a third traffic light, protection of the wetland
buffer, and expressed concern with the pipeline grading and drainage into the wetlands. Thor
Smith, 2139 Boulder Road expressed concern with students crossing the railroad tracks and
asked the city to work with the County to create a safe pedestrian crossing. Joel Lehrke, 2329
Boulder Road asked that the commission consider a fence along the railroad tracks, the
additional stop light and that the City do whatever can be done to make sure Lyman Boulevard
gets expanded on time and not 4 years after the school opens. Dennis Chadderdon, 8900
Audubon Road expressed concern with the erosion control within the wetland. Kate Aanenson
explained that erosion control was associated with a MnDot project. Chairman McDonald closed
the public hearing. After commission comments and discussion, the following motions were
made.
Dillon moved, Larson seconded that the Planning Commission recommends that the City
Council approve the Rezoning of the Chanhassen High School site from Agricultural Estate
District, A2, and Planned Unit Development, PUD, to Office and Institutional District, OI. All
voted in favor and the motion carried unanimously with a vote of 5 to 0.
Dillon moved, Larson seconded that the Planning Commission recommends that the City
Councilapprove the Conditional Use Permit for development within the Bluff Creek
Corridor with a Variance to locate the south access drive within the Bluff Creek primary
zone, in conformance with the grading plans prepared by Anderson Johnson Associates, Inc.,
dated 02-02-07, subject to the following conditions:
1.The construction activities associated with the proposed project shall not conflict with the
easement granted to MnDOT for its wetland mitigation project.
2.To mitigate for the impacts to the primary corridor, the applicant shall submit a plan for the
restoration of areas adjacent to the Bluff Creek Corridor (including the drainageway along
the north side of the substation and the area east of the bus/event entrance) with species
consistent with the City’s Bluff Creek Watershed Natural Resources Management Plan.”
All voted in favor and the motion carried unanimously with a vote of 5 to 0.
Dillon moved, Larson seconded that the Planning Commission recommends that the City
Council approve the Site Plan with Variance for a three-story building and up lighting for a
High School campus including an approximately 406,000 square-foot building, athletic fields,
concession building, stadium, storage/maintenance buildings and parking lots, plans prepared
by Anderson Johnson Associates, Inc., dated 02-02-07, subject to the following conditions:
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Planning Commission Summary - March 6, 2007
1.The developer shall add benches and tables to take advantage of the gathering areas, plazas
and scenic overlooks. Bicycle parking pads and storage racks shall be provided on site.
2.The developer shall include angled visitor parking in the drop-off access west of the building
entrance.
allowed during school events and activities
3.The building façade flood lights shall be .
4.Pedestrian ramps shall be provided at all curbs where the sidewalks or trails connect.
5.The following mitigation measures shall be implemented by opening day of the school:
Construct a traffic signal at the Lyman Boulevard/Lake Hazeltine Drive intersection.
?
Modify the existing signal at the Lyman Boulevard/Audubon Road South intersection for
?
the addition of a north leg to the intersection.
Construct the following turn lanes:
?
Approach Left Turn Lane Right Turn Lane
Southbound Lyman Boulevard at North Bypass lane
School Access
Northbound Lyman Boulevard at North 200 feet
School Access
Westbound North School Access at Through lane becomes 300 feet
Lyman Boulevard turn lane
Southbound Lyman Boulevard at Lake 200 feet
Hazeltine Drive
Northbound Lyman Boulevard at Lake 200 feet
Hazeltine Drive
Eastbound Lake Hazeltine Drive at 100 feet
Lyman Boulevard
Westbound Lake Hazeltine Drive at 300 feet Build
Lyman Boulevard through/right
Eastbound Lyman Boulevard at Audubon 200 feet
Road South
Westbound Lyman Boulevard at 200 feet
Audubon Road South
Northbound Audubon Road South at Build to add through
Lyman Boulevard lane
Southbound Audubon Road South at 200 feet Build
Lyman Boulevard through/right
6.Building Official Conditions:
a.The buildings must be protected with automatic fire sprinkler systems.
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Planning Commission Summary - March 6, 2007
b.The building plans must be prepared and signed by design professionals licensed in the
State of Minnesota.
c.Building permits are required for all structures (including, but not limited to, storage
buildings, concession stands, bleachers, retaining walls).
d.Retaining wall plans must be prepared and signed by a structural engineer licensed in the
State of Minnesota.
7.Fire Marshal Conditions:
a.A 10-foot clear space must be maintained around fire hydrants, i.e., street lamps, trees,
shrubs, bushes, Xcel Energy, Qwest, cable TV and transformer boxes. This is to ensure
that fire hydrants can be quickly located and safely operated by firefighters. Pursuant to
Chanhassen City Ordinance #9-1.
b.Fire apparatus access roads and water supply for fire protection is required to be installed.
Such protection shall be installed and made serviceable prior to and during the time of
construction except when approved alternate methods of protection are provided.
c.Fire apparatus access roads shall be designed and maintained to support the imposed load
of fire apparatus and shall be serviced so as to provide all-weather driving capabilities.
Pursuant to Minnesota State Fire Code Section 503.2.3.
d.Yellow curbing and “No Parking Fire Lane” signs will be required. Contact Chanhassen
Fire Marshal for exact location of yellow curbing and locations of signs to be installed.
e.No burning permits shall be issued for trees to be removed. Trees and shrubs must either
be removed from site or chipped.
f.Submit radius turn designs to City Engineer and Chanhassen Fire Marshal for review and
approval. Pursuant to Minnesota State Fire Code Section 503.2.4.
8.Forester Conditions:
a.Increase plantings for parking lot area in order to meet ordinance requirement of 156
trees.
b.Replace Black Hills spruce seedlings with white spruce.
c.Existing trees to be preserved shall be protected. Fencing shall be installed around trees
prior to grading.
d.Understory seedlings shall be located among overstory deciduous trees.
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Planning Commission Summary - March 6, 2007
e.The applicant shall increase the quantity of seedlings planted in each grouping.
f.All deciduous seedlings shall be protected by tree tubes. Tubes shall be monitored and
removed at the appropriate time. All tubes shall be fitted with protective bird netting.
g.All ash trees shall be replaced by an alternative species.
h.The applicant shall meet minimum requirements for buffer yard plantings along the east
property line. Native shrubs and vines shall be incorporated into the landscape in
addition to trees.
i.The columnar Norway maple shall be replaced with a different columnar tree such as
Armstrong red maple, Autumn Spire red maple or even an ornamental species.
9.Engineer Conditions:
a.The applicant must obtain permits from Carver County to construct the accesses to
Lyman Boulevard.
b.ISD 112 must obtain the necessary easement from the City of Chaska to construct the
access through the substation property.
c.Spot elevations must be shown between the wetland/wetland mitigation and Lyman
Boulevard to ensure that the road is not flooded during the 100-year event.
d.Additional ponding is required so that runoff from the entire future width of Lyman
Boulevard will be treated in the ponds.
e.Hydrology to the wetland/wetland mitigation area north of the Lake Hazeltine access
point must be maintained.
f.The outlet for Storm Basin 2 should be relocated to prevent short circuiting.
g.The development team should reexamine the proposed grades within the infield of
softball field 1 to eliminate the low area between second base and the pitcher’s mound.
h.Grading operations on adjacent properties must be approved by the property owner.
i.Grading within the overhead electric and gas easement near the eastern access point must
be approved by the appropriate private utilities.
j.Identify all emergency overflow locations and elevations on the final grading plan.
k.The final grading plan must show the linework for the storm sewer.
l.Pond, drainage and utility easements are required over the ponds and wetlands.
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Planning Commission Summary - March 6, 2007
m.The developer must adjust the sanitary sewer manhole elevations according to City
standard detail plates.
n.The trunk sanitary sewer line must be televised before and after construction to determine
if the high school construction has damaged the pipe. If the City televises this sanitary
sewer before the high school construction mobilized, the developer will only be required
to televise the line after construction is complete.
o.The school district will be reimbursed $166,424.00 which is the cost difference between
the 18-inch trunk and 10-inch lateral watermain.
p.Trunk water fees must be paid with the building permit based on the City Water Access
Charge in effect at the time the building permit is issued.
q.The hydrant locations along Lyman Boulevard must be adjusted so that the hydrants do
not lie within the high water level of the adjacent ponds.
r.Based on the proposed utility plan, an irrigation meter is required.
s.The utility plan must show the existing trunk sanitary sewer, existing overhead utilities
and existing gas pipelines.
t.Mylar and digital as-builts for the pond grading and utilities must be submitted in Carver
County coordinates.
10.Water Resources Coordinator Conditions:
a.Wetland replacement shall occur in a manner compliant with the project’s Wetland
Alteration Permit, Chanhassen City Code and the Minnesota Wetland Conservation Act
(MR 8420).
b.The project shall comply with the conditions of its Conditional Use Permit for
Development within the Bluff Creek Overlay District.
c.The Storm Water Pollution Prevention Plan (SWPPP) including all information required
by the NPDES Construction Site Permit shall be located at the job trailer.
d.Stable emergency overflows shall be provided for the proposed ponds on site. The
emergency overflows shall be clearly labeled on the plan and a detail is needed. The
emergency overflows can be stabilized with a turf re-enforcement mat or fabric and
riprap.
e.The plan shall include detailed specifications for temporary stabilization of the site. The
timing of stabilization will vary depending upon slope and if it is a concentrated flow
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Planning Commission Summary - March 6, 2007
area. The rate of mulch application shall also be included on the plans (2 tons per acre,
disc anchored).
f.All riprap/fabric at the flared end section shall be installed within 24 hours of flared end
section installation.
g.Erosion control blanket shall be installed on all slopes greater than or equal to 3:1. All
exposed soil areas shall have temporary erosion protection or permanent cover year
round, according to the following table of slopes and time frames:
Type of Slope Time (Maximum time an area can
Steeper than 3:1 7 days remain open when the area
10:1 to 3:1 14 days is not actively being worked.)
Flatter than 10:1 21 days
These areas include constructed storm water management pond side slopes, and any
exposed soil areas with a positive slope to a storm water conveyance system, such as a
curb and gutter system, storm sewer inlet, temporary or permanent drainage ditch or other
natural or man made systems that discharge to a surface water.
h.Silt fence that is not placed on the contour shall have J-Hooks or rock every 50 to 75 feet.
i.Temporary sediment basins shall be constructed prior to disturbing upslope areas. The
areas of temporary sediment basins shall be labeled on the plan. A temporary and/or
permanent sediment pond shall be constructed at the locations of the outlets for Flared
End Sections (FES) 7 and 8. This shall be installed prior to grading and then used as a
temporary sediment pond prior to discharging the runoff into the wetland. If it is used as
a temporary pond, it should stay in place until all turf is established. Temporary outlet
structures (e.g., a perforated riser and rock cone) shall be provided for the ponds; details
should be provided.
j.Contractors and their subcontractors shall receive approval of proposed dewatering
methods from the City’s project inspector or erosion and sediment control inspector prior
to conducting any and all dewatering on-site.
k.Wimco inlet controls or similar shall be used to protect all storm sewer inlets.
l.The plans shall be revised to include Chanhassen’s standard details for erosion and
sediment control (i.e., Details 3102, 3104, 3107, 3108, 3109, 5300, 5301, 5302, 5302A).
m.The plans shall be revised to include a concrete washout area.
n.Street cleaning of soil tracked onto public streets shall include daily street scraping and
street sweeping as-needed.
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Planning Commission Summary - March 6, 2007
o.The applicant shall apply for and obtain permits from the appropriate regulatory agencies
(i.e., Riley-Purgatory-Bluff Creek Watershed District, Minnesota Pollution Control
Agency) and comply with their conditions of approval.
All voted in favor and the motion carried unanimously with a vote of 5 to 0.
Dillon moved, Larson seconded that the Chanhassen Planning Commission recommends
that City Council approve the Wetland Alteration Permit for the grading and filling of
wetlands on the site of the Chanhassen High School, plans prepared by Pinnacle
Engineering, dated February 9, 2007, subject to the following conditions:
1.A wetland buffer 16.5 to 20 feet in width (with a minimum average of 16.5 feet) shall be
maintained around all Ag/Urban wetlands. All wetlands and wetland buffer areas shall be
protected by silt fence during grading. Wetland buffer areas shall be preserved, surveyed and
staked in accordance with the City’s wetland ordinance. The applicant shall install wetland
buffer edge signs, under the direction of City staff, before construction begins and shall pay
the City $20 per sign. All structures shall maintain a setback of at least 40 feet from the
wetland buffer edge. The wetland buffer setback shall be shown on the plans.
2.Wetland replacement shall occur in a manner consistent with Chanhassen City Code and the
Minnesota Wetland Conservation Act (MR 8420).
3.The applicant shall provide additional information as to how the vegetative communities and
hydrology for Wetlands C and D will be re-established.
4.A five-year wetland replacement monitoring plan shall be submitted. The replacement
monitoring plan shall include a detailed management plan for invasive non-native species,
particularly purple loosestrife and reed canary grass. The plans shall show fixed photo
monitoring points for the replacement wetland. The applicant shall provide proof of
recording of a Declaration of Restrictions and Covenants for Replacement Wetland.
5.The applicant shall submit a letter of credit equal to 110% of the cost of the wetland creation
(including grading and seeding) to ensure the design standards for the replacement wetland
are met. The letter of credit shall be effective for no less than five years from the date of
final approval. The applicant shall submit a cost estimate for wetland creation (including
grading and seeding) so the City can calculate the amount of the wetland creation letter of
credit.”
All voted in favor and the motion carried unanimously with a vote of 5 to 0.
APPROVAL OF MINUTES: Dillon moved, Papke seconded to note the verbatim and
summary minutes of the Planning Commission meeting dated January 16, 2007 as
presented. All voted in favor and the motion carried unanimously with a vote of 5 to 0.
Chairman McDonald adjourned the Planning Commission meeting at 9:30 p.m.
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Planning Commission Summary - March 6, 2007
Submitted by Kate Aanenson
Community Development Director
Prepared by Nann Opheim
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