CAS-_GE/OSMONICSAugust 14, 2006
CITY OF
CHANHASSEN
Mr' Leland G. Christenson, Il
North American Fly Ltd.
T700 Market Boulevard
31 5's Avenue South
PO Boa 147
Box 99
Chanhassen, MN55317
Strum, WI. 54770
Administration
Phone:952.227.1100
Re: G.E. OSmonics Site
Fax: 952.227. 1110
Chanhassen, Minnesota
Building Inspections
-
Phone:952.227,1180
Dear Mr. Christenson:
Fax. 952.227.1190
Engineering
I am writing as a follow up to our meeting on the site last Friday, August 11,
Phone:952.227.1160
2006. Lori Haak and I wish to thank you for the opportunity to share your idea
Fax: 952.227 1170
for the property. City staff is very supportive of the restoration and enhancement
Finance
of the wetlands and natural habitat on the property, which is consistent with the
Phone:952.227.1140
Bluff Creek Watershed Natural Resources Management Plan approved by the
Fax: 952.227. 1110
City in December 1996. Depending on the overall project, modification of the
Park & Recreation
Bluff Creek Corridor Primary Zone boundary and variation from the setback
Phone:952.227.1120
requirement based on the restoration and enhancement of the wetlands and natural
Fax:952.227.1110
habitat on the property may be appropriate. However, there is only a finite
Recreation Center
amount of flexibility that staff can support.
2310 Coulter Boulevard
Phone: 952 227.1400
Fax:952.227.1404
Before we can get that far, we have to look into the details. First, a current
wetland delineation of the property would need to be completed. Second, a tree
Planning A
inventory would need to be performed. Third, data for the primary zone
Nature) Resources
Phone:952.221.1130
delineation would need to be generated to determine the edge of the primary zone.
g g P �Y
Fax:952.22Lt110
This information would then have to be included on a topographic survey of the
site to establish the existing site conditions.
Public Works
1591 Park Road
Phone:952.227.1300
From this information, you would create preliminary development plans for the
Fax:952.227.1310
subdivision. Concurrently, a wetland restoration and enhancement plan would
Senior Center
have to be developed, detailing what environmental changes you are proposing.
Phone:952.227.1125
Finally, site plans would need to be drafted for the individual lots.
Fax:952.227.1110
Web site Enclosed are copies of the subdivision, variance, site plan, conditional use,
www.ci.chanhassen.mn.us wetland protection, Industrial Office Park, design standards for commercial,
industrial and office -institutional developments and Bluff Creek Overlay
regulations and the development review application forms. I strongly encourage
you to read the Bluff Creek Overlay regulations to better understand our concerns
regarding the development of this site.
SCANNED
The City of Chanhassen • A growing community with clean lakes, quality schools, a charming downtown, thriving businesses, winding trails, and beautiful parks. A great place to live, work, and play.
Mr. Leland G. Christenson, II
August 15, 2006
Page 2
Based on your discussion with us, your development application would include a subdivision,
rezoning, site plan review, variances, wetland alteration permit and conditional use permit. Once
you have developed a schematic plan for the project, you should submit it to the city to review
and provide comments and direction, prior to making an actual development submittal.
If you have any questions or need additional information, please contact me at (952) 227-1131 or
bgenerous @ ci.chanhassen.mmus.
Sincer
Robert Generous, AICP
Senior Planner
Enclosures
ec: Lori Haak
c: Liv Homeland
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I HEREBY CERTIFY THAT THIS- PLAN OR SPECIFICATION WAS PREPARED BY ME OR
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T700 Market Boulevard
PO Box 147
Chanhassen, MN 55317
Administration
Phone:952.227.1100
Fax: 952.227.1110
Building Inspections
Phone:952.227.1180
Fax.952.227.1190
Engineering
Phone: 952.227.1160
Fax: 952.227.1170
Finance
Phone:952.227.1140
Fax:952.227.1110
Park A Recreation
Phone:952.227.1120
Fax:952.227.1110
Recreation Center
2310 Coulter Boulevard
Phone: 952.227.1400
Fax: 952.227.1404
Planning &
Natural Resources
Phone: 952.227,1130
Fax: 952,227.1110
Public Works
1591 Park Road
Phone:952.227.1300
Fax:952,227.1310
Senior Center
Phone: 952,227.1125
Fax:952.227.1110
Web Site
www.ci.chanhassen.mn.us
MEMORANDUM
TO: Planning Commission
FROM: Lori Haak, Water Resources Coordinator
DATE: �
DATE: June 21, 2005 1.
RE: GEtOsmonics Concept Plan Review
PURPOSE
The purpose of this concept plan review is to consider the requests of a
potential buyer of the GE/Osmonics property with respect to variances from
the requirements of the Bluff Creek Overlay District (Article XXXI of the
Chanhassen City Code).
BLUFF CREEK OVERLAY DISTRICT
Bluff Creek is entirely within the City of Chanhassen. It provides a unique
blend of habitat, vegetation and recreational opportunities through the center
of the city. In December 1996, the City of Chanhassen adopted the Bluff
Creek Natural Resources Management Plan (BCNRMP). The plan was the
culmination of several years of study and planning focused on protecting the
natural and recreational resources provided by the Bluff Creek corridor. The
BCNRMP recommended the establishment of a primary zone (the creek,
riparian wetlands, associated steep slopes, native vegetation) and a secondary
zone (other undeveloped portions of the watershed) as a tool to help protect
the creek's natural resources. The primary and secondary zones were mapped
at that time using aerial photography to provide staff and the public with a
general idea of where the zones would lie.
In December 1998, the Bluff Creek Overlay District portion of City Code
(Article XXXI) was adopted (Attachment 1). The incorporation of the
BCNRMP into the code allowed the City to move ahead with the plan's
recommendations for open space preservation and density transfer. In
addition, it solidified the criteria for primary and secondary zone delineation,
requirements for setbacks, and open space requirements.
Generally, properties within the Bluff Creek Overlay District are subject to the
following requirements:
:H]
The City of Chanhassen s A growing community with clean lakes, quality schools, a charming downtown, thriving businesses, winding trails, and beautiful parks. A gnat place to live, work, and play.
GE/Osmonics Concept Plan Review
June 21,2005
Page 2 of 5
1. A conditional use permit (CUP) is required prior to all subdivision, site plans, land
alteration and building within the Bluff Creek Overlay District.
2. Bluffs must be preserved as set forth in Article XXVIH of City Code.
3. Density transfer can be used to cluster development in areas where the location of
the primary zone makes portions of the site unsuitable for development.
4. Natural habitat areas within the primary zone must be preserved as open space.
5. The primary zone must be 100 percent open space.
6. All structures must be set back at least 40 feet from the primary zone.
7. The first 20 feet of the setback from the primary zone cannot be disturbed.
City Code provides for the community development director to make a determination of
the primary and secondary zone boundaries. The applicant may submit additional
information to assist the City in making the determination. The community development
director's boundary determinations can be appealed to the City Council.
BACKGROUND
The Minnesota Department of Transportation (MnDOT) and its contractor, the Zumbro
River Constructors (ZRC), are working on the final design for the Trunk Highway 212
corridor and wetland mitigation areas. In order to accommodate wetland mitigation
within Chanhassen, MuDOT has been working with the City and the owners of key
parcels along Bluff Creek to provide off -site mitigation (that is, replacement of wetlands
impacted by the TH 212 project in areas that are outside of the TH 212 corridor).
Two off -site wetland mitigation sites (OF-1 and OF-5) have been preliminarily designed
by MnDOT (Attachment 3). The major property owners affected by the proposed
mitigation sites are GE/Osmonics, General Mills, Independent School District 112 and
the City of Chanhassen. In order to secure the rights to mitigate wetland on these
properties, the City is working on MnDOT's behalf to gain wetland easements from each
property owner. Each of the property owners has different concerns about the amount of
property that would be encumbered by the easement, as well as the effects of the
mitigation project and the easement on future development or use of the property. To
that end, the City is meeting with the property owners individually in an attempt to
resolve some of these concerns in a timely fashion.
MnDOT has indicated they would like to have an idea as to whether each property owner
is seriously considering participation in the mitigation projects by July 1, 2005; however,
construction of the projects will likely not commence until Fall 2005 at the earliest.
OFFSITE MITIGATION AREA OF-1
The offsite mitigation area known as OF-1 is located behind the General Mills facility in
the southwest corner of Coulter Boulevard and Audubon Road, north of the railroad
GFJOsmonics Concept Plan Review
June 21, 2005
Page 3 of 5
tracks. The majority of the area proposed for wetland mitigation is owned by General
Mills and GEOsmonics. A small portion of the western edge of the site is owned by the
City of Chanhassen.
In this location map, the horizontal dashed area represents the
mapped Bluff Creek Overby District primary zone, the other shaded
area represents the mapped secondary zone.
Approximate primary zone boundaries were drawn by City staff in December 2004 using
aerial photography during a site visit (solid line on Attachment 4). Following further
discussion and at the request of General Mills, City and MnDOT staff flagged and GPSd
the primary zone boundary on the General Mills and GFJOsmonics properties in March
2005 (line with dots on Attachment 4).
MnDOT's preliminary proposal (Attachment 5) does not include a large amount of
excavation to create new wetland. Through vegetation management and minor changes
in hydrologic patterns, MnDOT proposes to create areas that are suitable for the
establishment of six different natural communities within the easements on the OF-1 site.
These include oak woodlands and mesic hardwood forests on the slopes, leading down to
riparian wet meadow, mixed emergent marsh, floodplain forest and wet meadow
communities in the low portions of the sites. Low flows from Bluff Creek would be
diverted through a pipe to augment the hydrology of the wetland areas and grade
stabilization structures would be installed in the creek to keep the creek from carving a
deeper ravine for itself.
Final design of OF-1 is the responsibility of ZRC and will be completed once easements
are secured. Both MnDOT and the City will have input on ZRC's final design; however,
it is not likely that ZRC will substantially deviate from MnDOT's preliminary design.
Staff Perspective
City staff is supportive of MnDOT's proposal for the use of these areas for wetland
creation, vegetation restoration and creek meandering for several reasons:
1. The wetlands that will be impacted by the construction of TH 212 are very
beneficial for water resources, aesthetics and wildlife. Staff would like to see these
GFJOsmonics Concept Plan Review
June 21, 2005
Page 4 of 5
benefits preserved within the City. The mitigation plans, as proposed, will keep
many of the benefits within Chanhassen.
2. The proposed project is consistent with the intent of the Bluff Creek Watershed
Natural Resources Management Plan (December 1996) and Article XXXI of
Chanhassen City Code regarding Bluff Creek Overlay District.
3. The proposed project does not include financial contributions from the City of
Chanhassen for easement acquisition or construction purposes. If the proposed
projects are not completed by MnDOT, the City will likely spend local dollars to
complete the projects in the future. The 1996 plan estimated costs of $131,000 for
these two projects: $48,000 for an emergent marsh restoration on Site 2C (General
Mills and GF/Osmonics) and $83,000 for a creek and wetland restoration on Site 2D
(Independent School District 112 and City of Chanhassen). The actual costs for
these projects would likely be greater now, as the recent Bluff Creek remeandering
project north of OF-5 was awarded at $114,000. This did not include costs for
native vegetation restoration.
4. The proposed mitigation would enhance the habitat, hydrologic and diversity
functions within the Bluff Creek Overlay District.
GEIOSMONICS SITE PROPOSAL
The owners of the GE/Osmonics site are primarily concerned with the ability of future
users to develop more of the western portion of the property. The western and
southwestern portions of the property are within the Bluff Creek Overlay District primary
zone. Land within the primary zone cannot be disturbed and all structures (including
buildings and parking) must maintain a 40-foot setback from the primary zone. In
addition, the first 20 feet of that setback cannot be graded.
The concept plan under consideration (Attachment 7) has been submitted by a potential
buyer of the site. The buyer wishes to determine whether or not the Planning
Commission would consider granting variances for alterations within and encroachment
into the primary zone (Section 20-1563) and decreased setbacks from the primary zone
(Section 20-1564). The precise extent of the variances has not yet been determined.
The current proposal involves enlarging the developable area to accommodate additional
industrial development. This would be accomplished by allowing encroachment into the
primary zone along the northern property line and along the western edge of the property
and, for setback purposes, employing the northern property line and the edge of wetland
buffer as the primary zone boundary. The applicant has also proposed constructing a
storm water pond in a small wetland basin near the center of the property, with mitigation
occurring adjacent to existing wetland in the southwest portion of the property.
Staff Perspeetive
In consideration of the benefits of the entire OF-1 mitigation project to the habitat,
hydrologic characteristics and vegetative diversity of the Bluff Creek corridor and in
GE/Osmonics Concept Plan Review
June 21, 2005
Page 5 of 5
exchange for the easement required for wetland mitigation purposes, there may be
benefits to permitting encroachment in this instance.
City Approvals Required
Under the current proposal, the developer would need to secure the following from the
City prior to development of the site:
1. Conditional Use Permit (CUP) for development within the Bluff Creek Overlay
District and potentially for development within floodplain;
2. Subdivision;
3. Rezoning of the western portion of the site from Agricultural Estate District (A2)
to Industrial Office Park (IOP);
4. Site Plan;
5. Wetland Alteration Permit for construction of a storm water pond within a
wetland; and
6. Variances, if necessary.
RECOMMENDATION
Staff requests that the Planning Commission provide staff and the developer direction on
proceeding with development of the parcel, specifically if there may be support for
encroachment into the primary zone and/or variances from setback requirements.
ATTACHMENTS
1. Article XXXI of Chanhassen City Code, Bluff Creek Overlay District.
2. Ordinance 394 Amending Chapter 20, Article XXXI of Chanhassen City Code, Bluff
Creek Overlay District
3. Map of off -site wetland mitigation sites OF-1 and OF-5
4. GPS boundary of Bluff Creek Overlay District Primary Zone
5. Draft Vegetation Establishment Plan for OF-1, dated 12/8/04
6. Letter from L. Homeland and G. du Monceaux, dated June 10, 2005
7. Concept land development plan for Audubon Corporate Park, undated
cc: Liv Homeland
Greg du Monceaux
GAENG\LonT1anning\GE-0smonics Concept Plan 062105Am
ARTICLE XXXI. BLUFF CREEK OVERLAY DISTRICT Page 1 -of 4
ARTICLE XXXI. BLUFF CREEK OVERLAY DISTRICT
Sec. 20-1551. Purpose.
The Bluff Creek Watershed Area and the development within it have a major influence on
environmental quality in the city and the region. Development within the corridor must be designed with utmost
sensitivity to the environment and the development pattern must be of a quantity and quality other than what
might occur in the absence of specific standards. The purpose of the district is to:
(a) Protect the Bluff Creek Corridor, wetlands, bluffs, and significant stands of mature trees
through the use of careful site design, protective covenants, sensitive alignment and design of
roadways and utilities, incorporation of natural features, landscaping, techniques outlined in the
city's surface water management plan, and the practices delineated in the city's Best
Management Practices Handbook.
(b) Encourage a development pattern that allows people and nature to mix spanning multiple
ecosystems. Development in the corridor should be ecologically designed and built around
natural features such as trees, wetlands, and bluffs. Significant natural features should impact
development rather than development impacting significant natural features. The natural
qualities of the corridor should be preserved to ensure sufficient habitat area for wildlife.
(c) Promote innovative development techniques such as cluster development and open
space subdivisions to measurably reduce the amount of impervious cover compared to
traditional development practices resulting in significant portions of a site being retained as
permanent, protected open space.
(d) Foster the creation of a greenway connecting Lake Minnewashta Regional Park and the
Minnesota River Valley. The greenway will serve as an uninterrupted pedestrian trail, bikeway
system, and wildlife corridor affording opportunities for recreation, education, physical fitness
and nonmotorized transportation.
(e) Encourage cost effective site development. Open space design practices can reduce
infrastructure engineering and construction costs because of lot configurations, shortened
streets, and reduced utility runs. Long term cost savings can also be realized by the City of
Chanhassen associated with infrastructure maintenance costs.
(f) Implement the policies and recommendations found in the Bluff Creek Watershed Natural
Resources Management Plan. The terms, definitions and appendices found in the management
plan are incorporated herein.
(Ord. No. 286, § 8, 12-14-98)
Sec. 20-1552. Intent.
The city intends that all development within the district including commercial, industrial and residential
uses should blend into the natural environment while protecting Bluff Creek and sensitive land areas abutting
and in the vicinity of the watercourse and its tributaries. The criteria by which new development in the district
shall be judged are as follows:
(a) Consistency with all provisions of the Comprehensive Plan which includes the Bluff Creek
Watershed Natural Resources Management Plan, as amended from time to time; the surface
water management plan; all provisions of the zoning ordinance and subdivision ordinance not
specifically overridden by the provisions of this district; and all other applicable land use
regulations.
(b) Preservation of the natural conditions found in the primary zone and to the greatest extent
possible, preserving significant resources and minimizing impacts in the secondary zone
through cluster development and other practices which minimize the removal of vegetation,
minimize site grading, and application of practices found in the city's Best Management
Practices Handbook.
(c) Creation of a suitable balance between the amount and arrangement of open space,
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ARTICLE XXXI. BLUFF CREEK OVERLAY DISTRICT
Page 2 of 4
landscaping, view protection, bluff protection, and vegetation protection and the design and
function of manmade features.
(d) Creation of an interconnected open space network that preserves migratory patterns for
wildlife.
(e) Creation of an interconnected open space network that provides recreational and
educational opportunities for people.
(Ord. No. 286, § 8, 12-14-98)
Sec. 20-1553. District application.
The BCO district shall be applied or superimposed (overlaid) upon all zoning districts as contained
herein as existing or amended by the text and map of this ordinance. The regulations and requirements
imposed by the BCO District shall be in addition to those established for districts which jointly apply. Under the
joint application of the districts, the more restrictive requirements shall apply.
(Ord. No. 286, § 8, 12-14-98)
Sec. 20-1554. Conditional use permits.
(a) A conditional use permit shall be issued by the city for all subdivisions, site plans, and prior the
erection or alteration of any building or land within the BCO.
(b) All lots of record in existence and parcels of land located within the Bluff Creek Overlay District on
which a principal structure has been constructed prior to December 14, 1998, are exempt from
requiring a conditional use permit. Further subdivision of the property will require a conditional use
permit and shall comply with the Bluff Creek Overlay District.
(Ord. No. 286, § 8, 12-14-98; Ord. No. 364, § 1, 1-12-04)
Sec. 20-1555. Boundary delineation.
(a) Generally. Primary and secondary zones shall be subject to the requirements established herein,
as well as restrictions and requirements established by other applicable city ordinances and
regulations. The Bluff Creek Overlay District regulations shall not be construed to allow anything
otherwise prohibited in the zoning district where the overlay district applies.
(b) Boundaries; maps. The primary and secondary zones include land that is generally defined in this
ordinance and in the Bluff Creek Watershed Natural Resources Management Plan. Boundaries as
established by officially adopted city maps shall be prima facie evidence of the location and type of
watershed zone. The official maps shall be developed and maintained by the planning department. The
applicant shall provide appropriate technical information, including but not limited to a topographical
survey, flora and fauna survey and soil data deemed necessary for the city to determine the exact
watershed zone boundary. The community development director shall make a determination to
maintain the officially designated watershed zone boundary or if the boundaries need to be corrected
on city plans and maps based upon the data that is supplied. Data for watershed zone delineation shall
be generated and provided by a qualified professional specializing in watershed management,
environmental science or other related profession. The applicant may appeal the community
development director's determination of the watershed zone boundary and type to the city council.
(Ord. No. 286, § 8, 12-14-98; Ord. No. 377, § 155, 5-24-04)
Sec. 20-1556. Impervious cover and slopes.
To the greatest extent possible, all development shall minimize the amount of impervious surface by
clustering development, using common access drives and utility corridors and minimizing building footprint
size. Roads, walkways, bike trails, and parking areas must be designed parallel to natural contours with
consideration to maintaining consolidated areas of natural topography and vegetation. Management of surface
run-off caused by impervious cover shall be designed using practices delineated in the city's Best
Management Practices Handbook.
Within the secondary zone of the BCO District, areas with average slopes exceeding 25 percent shall
be preserved in their natural state and maintained as permanent open space. Areas with average slopes less
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ARTICLE XXXI. BLUFF CREEK OVERLAY DISTRICT
Page 3-of 4
than 25 percent but greater than ten percent shall not exceed an impervious surface coverage of 25
percent. Impervious coverage for areas where average slopes are less than ten percent shall be govemed by
the underlying zoning district.
(Ord. No. 286, § 8, 12-14-98)
Sec. 20-1557. Bluffs.
Bluffs shall be preserved as provided for under article XXVIII.
(Ord. No. 286, § 8, 12-14-98)
Sec. 20-1558. Site views.
Through environmentally sensitive design such as 'terrain adaptive architecture" (see Figure 1),
landscaping and site planning, site views both to and from the BCO district shall be preserved and enhanced
to the greatest extent possible so as to maintain views that reflect and protect the natural beauty of the BCO
District. Special attention should be given to views that are highly accessible to the public such as scenic
overlooks, ridges and trails. Clustering of development away from natural overlooks is encouraged.
GRAPHIC LINK: Figure 1 "Published in APA PAS Report #466"
(Ord. No. 286, § 8, 12-14-98; Ord. No. 377, § 156, 5-24-04)
Sec. 20-1559. Density clustering.
Density clustering shall be allowed as a tool to facilitate cluster development within the Bluff Creek
Overlay District. Density clustering may be used in areas where portions of the site are unsuitable for
development because of the location of the primary zone. Density clustering shall not be allowed for areas that
are otherwise considered unbuildable due to wetlands, lakes and other areas not suitable for building
purposes.
In areas where density clustering is applicable, density may be transferred to unconstrained parts of the
site within land included in the secondary zone, subject to the restrictions of this ordinance, and within land
lying outside of identified zone areas. Additionally, the following conditions may qualify for density clustering:
(a) Land slopes in the secondary zone that exceed 25 percent on average.
(b) Land in the secondary zone containing stands of native trees.
(c) Land with suitable natural habitat to endangered or threatened species or a fragile
ecosystem.
GRAPHIC LINK: Traditional Development Pattern
GRAPHIC LINK: Cluster Development
GRAPHIC LINK: Industrial Cluster Development
(Ord. No. 286, § 8, 12-14-98; Ord. No. 377, § 157, 5-24-04)
Sec. 20-1560. Standards and guidelines for single-family attached or cluster -home PUDs.
Single-family attached, cluster, zero lot line, and similar dwelling types shall only be allowed on sites
designed for low, medium or high density residential uses by the City of Chanhassen Comprehensive Plan.
(Ord. No. 286, § 8, 12-14-98)
Sec. 20-1561. Natural habitat preservation.
(a) Natural habitat areas within the primary zone shall be preserved as permanent open space. Any
development that occurs shall be directly related to the development of a continuous greenway along
the creek from the Minnesota River to Lake Minnewashta as outlined in the Bluff Creek Watershed
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ARTICLE XXXI. BLUFF CREEK OVERLAY DISTRICT
Natural Resources Management Plan.
Page 4 of 4
(b) Where possible, any disturbances of natural habitat areas within the secondary zone shall be
avoided. Any alterations to the natural habitat within the secondary zone shall adhere to the practices
delineated in the city's Best Management Practices Handbook.
(Ord. No. 286, § 8, 12-14-98; Ord. No. 377, § 158, 5-24-04)
Sec. 20-1562. Natural habitat restoration plan.
If natural habitat areas located within the secondary zone will be disturbed during any stage of
development, the applicant shall submit a detailed plan identifying the resources that will be disturbed and a
corresponding restoration and/or mitigation plan. Such restoration might include wetland mitigation and
replanting of habitat significant to endangered and threatened species.
(Ord. No. 286, § 8, 12-14-98)
Sec. 20-1563. Open space requirements.
Open space shall comprise 100 percent of the area located within the primary zone. The city will
establish the boundary for the primary zone using data provided by the applicant.
(Ord. No. 286, § 8, 12-14-98)
Sec. 20-1564. Structure setbacks.
All structures shall be set back a minimum of 40 feet from the primary zone. No disturbances of the site
shall occur with the first 20 feet of such setback.
(Ord. No. 286, § 8, 12-14-98; Ord. No. 364, § 2, 1-12-04; Ord. No. 377, § 159, 5-24-04)
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CITY OF CHANHASSEN
CARVER AND HENNEPIN COUNTIES, MINNESOTA
ORDINANCE NO.394
AN ORDINANCE AMENDING CHAPTER 20, ARTICLE XXXI
CHANHASSEN CITY CODE,
BLUFF CREEK OVERLAY DISTRICT
THE CITY COUNCIL OF THE CITY OF CHANHASSEN, MINNESOTA ORDAINS:
Section 1. Section 20-1564 of the City Code, City of Chanhassen, Minnesota, is hereby
amended to read as follows:
(a) All structures shall be set back a minimum of 40 feet from the primary zone, except
as specified below. No disturbances of the site shall occur within the first 20 feet of
such setback from the primary zone boundary.
(b) On parcels of land located within the Bluff Creek Overlay District on which a
principal structure has been constructed prior to December 14, 1998:
(1) The minimum setback from the primary zone shall be the existing principal
structure setback, if less than 40 feet.
(2) If the existing principal building or structure setback is less than 40 feet and
greater than or equal to 20 feet, then the first 50 percent of the established primary
zone setback shall remain undisturbed.
(3) If the existing principal building or structure setback is less than 20 feet there
shall be no grading or alterations beyond the existing setback.
Section 2. This ordinance shall be effective immediately upon its passage and
publication.
PASSED AND ADOPTED this 25`s day of April, 2005, by the City Council of
the City of Chanhassen, Minnesota
Todd Gerhardt, City Manager
Thomas A. Furlong, Mayor
(Published in the Chanhassen Villager on May 5, 2005)
Bluff Creek Overlay
District Boundary
Bluff Creek Overlay District
Bluff Creek Overlay District
— Old version of Bluff Creek Overlay District
--7
industrial development services
DATE: June 10, AM5
TO: City of Chanhassen
Planning Dcoartmenh
SUBJECT: Define Limits of Developable Acreage of the G.E. Site oil Audubon Road.
SITE LOCATION:
The site of approximately-38.77 acres is located in the northwest quadrant of the intersection of
Audubon Road and the Chicago, Milwaukee, Pacific Railroad in Chanhassen, Minnesota.
SITE MAKEUP:
The site -consists of several acres of rolling land sloping-4 OWn• to a wetland. Of the total site,
approximately 16.37 acres have been designated wetlands l►foh also to utte a sixteeufool D'
P Y
setback and an additional forty feet);D) oTb{fit 8t��r`irptjtkr�irit oR is {idrd
exists on the westerly portion of thelroper[g
Road whichhdesignated pjlay dev Myna(c�''=�
area. That portion of the site abutting and diie • ` i�g�`ffdary dewr�lti{lerT��e
designated the secondary development area anti Xwx;in ly six (6.f)) fE alip area. The
remaining portion of the site designated non-devela �is approximately dAaer-S ty ztea.
BLUFF CREEK BOUNDARY:
Running through the entire site from east to west is a line:ealled the Bluff Creek Overlay District
Boundary. This further defines;; portion of the site to be protected and also carries two twenty
foot (20.0') buffer zones.
ISSUES:
The issue before us is that those portions of the total site that are either wetland, outside the Bluff
Creek Boundary Line or non -developable land reduces the amount of developable property to
approximately eight (8.0) acres of the total 38.77 acres. This is only about twenty percent (200/") of
the total acreage and is unacceptable to the land owner.
PURPOSE OF THIS APPLICATION:
The purpose of this application is to find a way that redefines some of the site restrictions in or '; '
trial more of the totalpropertycan be used for development Srnc'pffiWetlant caHnt et 'e
we are requesting That the city provide a variance that would allt3>11 Buff Cteelfti
to be adjusted in a way that would achieve this.g 300IM- 5vouid be that at IISA `S
twelve (12) acres of the site, the Buff Creek Bouneiairrne` 1 the same line as,the north '
property line (Se attached plans) and that where the property line intersects with the sixteen
(16.0') setback line of the wetland, that the Buff: Creek Boundary Line and the sixteen foot (16.0' $F
wetland setback line become the same The�fotfy'foot (40.0') buffer for the wetland and the fo
it
foot (40.0') buffer for the Bluff C rye Lire also become one and the same (see atta h �A
k
Plans). This increases the potentta ly c area of the-3ite front eight_ (8) to approxrpaate s $
eighteen (18) acres or forty-hve (45) PRcerit nt ?Site. This would be.a much mpq r t'
acceptable solution to the land owner and hapefu4' llie city. Thank you for your consideration`of
this issue.
F,
i
Liv Horpland .
Pir g du' onceaux -Af
Real Estate Representative for G.E. R presen Potential Developer
9733 Mill Creek Drive Eden Prairie., MN 55347 . rFt7rJk70 -
CITY OF
CENSEN
7700 Market Boulevard
PO Box 147
Chanhassen, MN 55317
Administration
Phone: 952.227.1100
Fax: 952.227.1110
Building Inspections
Phone: 952.227.1180
Fax: 952,227,1190
Engineering
Phone: 952.227.1160
Fax: 952.227.1170
Finance
Phone: 952.227.1140
Fax: 952.227.1110
Park & Recreation
Phone: 952.227.1120
Fax: 952.227.1110
Recreation Center
2310 Coulter Boulevard
Phone: 952.227,1400
Fax: 952.227.1404
Planning &
Natural Resources
Phone: 952.227.1130
Fax: 952.227.1110
Public Works
1591 Park Road
Phone: 952.227.1300
Fax: 952.227.1310
Senior Center
Phone: 952.227.1125
Fax: 952.227.1110
Web Site
www.ci.chanhassen.mn.us
TRANSMITTAL MEMORANDUM
To: Planning Commission
From: Lori Haak, Water Resources Coordinator/`/
Date: June 16, 2005
Re: Concept Plans for GE/Osmonics Site (Audubon Corporate Park)
Enclosed please find full-size plans for the above concept plan, Discussion
Item 3 of the June 21, 2005 Planning Commission agenda.
I apologize for the delay in getting these to you. Please contact me at
952.227.1135 if you have questions.
The City of Chanhassen • A growing community with clean lakes, quality schools, a charming downtown, thriving businesses, winding trails, and beautiful parks. A gnat place to live, work, and play.
industrial development services
DATE: June 10, 2005
TO: City of Chanhassen
Planning De0artment
SUBJECT: Define Limits of Developable Acreage of the G.E. Site on Audubon Road.
SITE LOCATION:
The site of approximately 38.77 acres is located in the northwest quadrant of the intersection of
Audubon Road and the Chicago, Milwaukee, Pacific Railroad in Chanhassen, Minnesota.
SITE MAKEUP:
The site consists of several acres of rolling land sloping down to a wetland. Of the total site,
approximately 16.37 acres have been designated wetlands which also require a sixteen foot (16.0')
setback and an additional forty feet (40.0') of buffer area which cannot be built on. This wetland
exists on the westerly portion of the property. The easterly portion of the site abutting Audubon
Road which has been designated primary development land is approximately twelve (12) acres in
area. That portion of the site abutting and directly west of the primary development site has been
designated the secondary development area and is approximately six (6.0) acres in area. The
remaining portion of the site designated non -developable is approximately 4.4 acres in area.
BLUFF CREEK BOUNDARY:
Running through the entire site from east to west is a line called the Bluff Creek Overlay District
Boundary. This line further defines,a portion of the site to be protected and also carries two twenty
foot (20.0') buffer zones.
ISSUES:
The issue before us is that those portions of the total site that are either wetland, outside the Bluff
Creek Boundary Line or non -developable land reduces the amount of developable property to
approximately eight (8.0) acres of the total 38.77 acres. This is only about twenty percent (20%) of
the total acreage and is unacceptable to the land owner.
PURPOSE OF THIS APPLICATION:
The purpose of this application is to find a way that redefines some of the site restrictions in order
that more of the total property can be used for development. Since the wetland cannot be adjusted,
we are requesting that the city provide a variance that would allow the Buff Creek Boundary Line
to be adjusted in a way that would achieve this goal. Our request would be that at the forward
twelve (12) acres of the site, the Buff Creek Boundary Line be the same line as the northerly
property line (Se attached plans) and that where the property line intersects with the sixteen foot
(16.0') setback line of the wetland, that the Buff Creek Boundary Line and the sixteen foot (16.0')
wetland setback line become the same. The forty foot (40.0') buffer for the wetland and the forty
foot (40.0') buffer for the Bluff Creek Boundary Line also become one and the same (see attached
plans). This increases the potentially developable area of the site from eigbt (8) to approximately
eighteen (18) acres or forty-five (45) percent of the total site. This would be a much more
acceptable solution to the land owner and hopefully the city. Thank you for your consideration of
this issue.
Liv Hornland
Real Estate Representative for G.E.
r du' onceaux At
R prese Potential Developer
9733 Mill Creek Drive • Eden Prairie, MN 55347 • (612) 275-7879
0
CITY OF
CIIMNSEN
7700 Market Boulevard
PO Box 147
Chanhassen, MN 55317
Administration
Phone: 952,227.1100
Fax: 952 227.1110
Building Inspections
Phone: 952.227,1180
Fax: 952.227.1190
Engineering
Phone: 952,227.1160
Fax: 952.227.1170
Finance
Phone: 952,227.1140
Fax: 952.227.1110
Part A Reemation
Phone: 952.2271120
Fax: 952.227.1110
Recreation Center
2310 Coulter Boulevard
Phone: 952.227.1400
Fax: 952.227.1404
Planning At
Natural Resources
Phone: 952.227.1130
Fax: 952.227.1110
Public Works
1591 Park Road
Phone: 952.227.1300
Fax: 952.227.1310
Senior Center
Phone: 952.227.1125
Fax: 952.227,1110
Web She
www.cichanhassen.mm.us
MEMORANDUM
TO: Planning Commission
FROM: Lori Haak, Water Resources Coordinator
DATE: June 21, 2005 V& .
RE: GF/Osmonics Concept Plan Review
PURPOSE
The purpose of this concept plan review is to consider the requests of a
potential buyer of the GE/Osmonics property with respect to variances from
the requirements of the Bluff Creek Overlay District (Article XXXI of the
Chanhassen City Code).
BLUFF CREEK OVERLAY DISTRICT
Bluff Creek is entirely within the City of Chanhassen. It provides a unique
blend of habitat, vegetation and recreational opportunities through the center
of the city. In December 1996, the City of Chanhassen adopted the Bluff
Creek Natural Resources Management Plan (BCNRMP). The plan was the
culmination of several years of study and planning focused on protecting the
natural and recreational resources provided by the Bluff Creek corridor. The
BCNRMP recommended the establishment of a primary zone (the creek,
riparian wetlands, associated steep slopes, native vegetation) and a secondary
zone (other undeveloped portions of the watershed) as a tool to help protect
the creek's natural resources. The primary and secondary zones were mapped
at that time using aerial photography to provide staff and the public with a
general idea of where the zones would lie.
In December 1998, the Bluff Creek Overlay District portion of City Code
(Article XXXI) was adopted (Attachment 1). The incorporation of the
BCNRMP into the code allowed the City to move ahead with the plan's
recommendations for open space preservation and density transfer. In
addition, it solidified the criteria for primary and secondary zone delineation,
requirements for setbacks, and open space requirements.
Generally, properties within the Bluff Creek Overlay District are subject to the
following requirements:
I I3
The City of Chanhassen • A growing community with clean lakes, quality schools, a charming downtown, thriving businesses, winding trails, and beautiful parks. A gnat place to live, work, and play.
GF/Osmonics Concept Plan Review
June 21,2005
Page 2 of 5
1. A conditional use permit (CUP) is required prior to all subdivision, site plans, land
alteration and building within the Bluff Creek Overlay District.
2. Bluffs must be preserved as set forth in Article XXVHI of City Code.
3. Density transfer can be used to cluster development in areas where the location of
the primary zone makes portions of the site unsuitable for development.
4. Natural habitat areas within the primary zone must be preserved as open space.
5. The primary zone must be 100 percent open space.
6. All structures must be set back at least 40 feet from the primary zone.
7. The first 20 feet of the setback from the primary zone cannot be disturbed.
City Code provides for the community development director to make a determination of
the primary and secondary zone boundaries. The applicant may submit additional
information to assist the City in making the determination. The community development
director's boundary determinations can be appealed to the City Council.
BACKGROUND
The Minnesota Department of Transportation (MnDOT) and its contractor, the Zumbro
River Constructors (ZRC), are working on the final design for the Trunk Highway 212
corridor and wetland mitigation areas. In order to accommodate wetland mitigation
within Chanhassen, MnDOT has been working with the City and the owners of key
parcels along Bluff Creek to provide off -site mitigation (that is, replacement of wetlands
impacted by the TH 212 project in areas that are outside of the TH 212 corridor).
Two off -site wetland mitigation sites (OF-1 and OF-5) have been preliminarily designed
by MnDOT (Attachment 3). The major property owners affected by the proposed
mitigation sites are GE/Osmonics, General Mills, Independent School District 112 and
the City of Chanhassen. In order to secure the rights to mitigate wetland on these
properties, the City is working on MnDOT's behalf to gain wetland easements from each
property owner. Each of the property owners has different concerns about the amount of
property that would be encumbered by the easement, as well as the effects of the
mitigation project and the easement on future development or use of the property. To
that end, the City is meeting with the property owners individually in an attempt to
resolve some of these concerns in a timely fashion.
MnDOT has indicated they would like to have an idea as to whether each property owner
is seriously considering participation in the mitigation projects by July 1, 2005; however,
construction of the projects will likely not commence until Fall 2005 at the earliest.
OFFSITE MITIGATION AREA OF-1
The offsite mitigation area known as OF-1 is located behind the General Mills facility in
the southwest comer of Coulter Boulevard and Audubon Road, north of the railroad
GF/Osmonics Concept Plan Review
June 21, 2005
Page 3 of 5
tracks. The majority of the area proposed for wetland mitigation is owned by General
Mills and GEtOsmonics. A small portion of the western edge of the site is owned by the
City of Chanhassen.
In this location map, the horizontal dashed area represents the
mapped Bluff Creek Overlay District primary zone, the other shaded
area represents the mapped secondary zone.
Approximate primary zone boundaries were drawn by City staff in December 2004 using
aerial photography during a site visit (solid line on Attachment 4). Following further
discussion and at the request of General Mills, City and WDOT staff flagged and GPSd
the primary zone boundary on the General Mills and GFJOsmonics properties in March
2005 (line with dots on Attachment 4).
MnDOT's preliminary proposal (Attachment 5) does not include a large amount of
excavation to create new wetland. Through vegetation management and minor changes
in hydrologic patterns, MnDOT proposes to create areas that are suitable for the
establishment of six different natural communities within the easements on the OF-1 site.
These include oak woodlands and mesic hardwood forests on the slopes, leading down to
riparian wet meadow, mixed emergent marsh, floodplain forest and wet meadow
communities in the low portions of the sites. Low flows from Bluff Creek would be
diverted through a pipe to augment the hydrology of the wetland areas and grade
stabilization structures would be installed in the creek to keep the creek from carving a
deeper ravine for itself.
Final design of OF-1 is the responsibility of ZRC and will be completed once easements
are secured. Both MnDOT and the City will have input on ZRC's final design; however,
it is not likely that ZRC will substantially deviate from MnDOT's preliminary design.
Staff Perspective
City staff is supportive of MnDOT's proposal for the use of these areas for wetland
creation, vegetation restoration and creek meandering for several reasons:
1. The wetlands that will be impacted by the construction of TH 212 are very
beneficial for water resources, aesthetics and wildlife. Staff would like to see these
GE10smonics Concept Plan Review
June 21, 2005
Page 4 of 5
benefits preserved within the City. The mitigation plans, as proposed, will keep
many of the benefits within Chanhassen.
2. The proposed project is consistent with the intent of the Bluff Creek Watershed
Natural Resources Management Plan (December 1996) and Article XXXI of
Chanhassen City Code regarding Bluff Creek Overlay District.
3. The proposed project does not include financial contributions from the City of
Chanhassen for easement acquisition or construction purposes. If the proposed
projects are not completed by MnDOT, the City will likely spend local dollars to
complete the projects in the future. The 1996 plan estimated costs of $131,000 for
these two projects: $48,000 for an emergent marsh restoration on Site 2C (General
Mills and GF/Osmonics) and $83,000 for a creek and wetland restoration on Site 2D
(Independent School District 112 and City of Chanhassen). The actual costs for
these projects would likely be greater now, as the recent Bluff Creek remeandering
project north of OF-5 was awarded at $114,000. This did not include costs for
native vegetation restoration.
4. The proposed mitigation would enhance the habitat, hydrologic and diversity
functions within the Bluff Creek Overlay District.
GE/OSMONICS SITE PROPOSAL
The owners of the GEtOsmonics site are primarily concerned with the ability of future
users to develop more of the western portion of the property. The western and
southwestern portions of the property are within the Bluff Creek Overlay District primary
zone. Land within the primary zone cannot be disturbed and all structures (including
buildings and parking) must maintain a 40-foot setback from the primary zone. In
addition, the first 20 feet of that setback cannot be graded.
The concept plan under consideration (Attachment 7) has been submitted by a potential
buyer of the site. The buyer wishes to determine whether or not the Planning
Commission would consider granting variances for alterations within and encroachment
into the primary zone (Section 20-1563) and decreased setbacks from the primary zone
(Section 20-1564). The precise extent of the variances has not yet been determined.
The current proposal involves enlarging the developable area to accommodate additional
industrial development. This would be accomplished by allowing encroachment into the
primary zone along the northern property line and along the western edge of the property
and, for setback purposes, employing the northern property line and the edge of wetland
buffer as the primary zone boundary. The applicant has also proposed constructing a
storm water pond in a small wetland basin near the center of the property, with mitigation
occurring adjacent to existing wetland in the southwest portion of the property.
Staff Perspective
In consideration of the benefits of the entire OF-1 mitigation project to the habitat,
hydrologic characteristics and vegetative diversity of the Bluff Creek corridor and in
GE/Osmonics Concept Plan Review
June 21, 2005
Page 5 of 5
exchange for the easement required for wetland mitigation purposes, there may be
benefits to permitting encroachment in this instance.
City Approvals Required
Under the current proposal, the developer would need to secure the following from the
City prior to development of the site:
1. Conditional Use Permit (CUP) for development within the Bluff Creek Overlay
District and potentially for development within floodplain;
2. Subdivision;
3. Rezoning of the western portion of the site from Agricultural Estate District (A2)
to Industrial Office Park (IOP);
4. Site Plan;
5. Wetland Alteration Permit for construction of a storm water pond within a
wetland; and
6. Variances, if necessary.
RECOMMENDATION
Staff requests that the Planning Commission provide staff and the developer direction on
proceeding with development of the parcel, specifically if there may he support for
encroachment into the primary zone and/or variances from setback requirements.
ATTACHMENTS
1. Article )CM of Chanhassen City Code, Bluff Creek Overlay District.
2. Ordinance 394 Amending Chapter 20, Article XXXI of Chanhassen City Code, Bluff
Creek Overlay District
3. Map of off -site wetland mitigation sites OF-1 and OF-5
4. GPS boundary of Bluff Creek Overlay District Primary Zone
5. Draft Vegetation Establishment Plan for OF-1, dated 12/8/04
6. Letter from L. Homeland and G. du Monceaux, dated June 10, 2005
7. Concept land development plan for Audubon Corporate Park, undated
cc: Liv Homeland
Greg du Monceaux
GAENG\Lon\Planning\GE-Gsmo&cs Concept Plan 062105.doc
ARTICLE XXXI. BLUFF CREEK OVERLAY DISTRICT Page 1 of 4
ARTICLE XXXI. BLUFF CREEK OVERLAY DISTRICT
Sec. 20-1551. Purpose.
The Bluff Creek Watershed Area and the development within it have a major influence on
environmental quality in the city and the region. Development within the corridor must be designed with utmost
sensitivity to the environment and the development pattern must be of a quantity and quality other than what
might occur in the absence of specific standards. The purpose of the district is to:
(a) Protect the Bluff Creek Corridor, wetlands, bluffs, and significant stands of mature trees
through the use of careful site design, protective covenants, sensitive alignment and design of
roadways and utilities, incorporation of natural features, landscaping, techniques outlined in the
city's surface water management plan, and the practices delineated in the city's Best
Management Practices Handbook.
(b) Encourage a development pattern that allows people and nature to mix spanning multiple
ecosystems. Development in the corridor should be ecologically designed and built around
natural features such as trees, wetlands, and bluffs. Significant natural features should impact
development rather than development impacting significant natural features. The natural
qualities of the corridor should be preserved to ensure sufficient habitat area for wildlife.
(c) Promote innovative development techniques such as cluster development and open
space subdivisions to measurably reduce the amount of impervious cover compared to
traditional development practices resulting in significant portions of a site being retained as
permanent, protected open space.
(d) Foster the creation of a greenway connecting Lake Minnewashta Regional Park and the
Minnesota River Valley. The greenway will serve as an uninterrupted pedestrian trail, bikeway
system, and wildlife corridor affording opportunities for recreation, education, physical fitness
and nonmotorized transportation.
(a) Encourage cost effective site development. Open space design practices can reduce
infrastructure engineering and construction costs because of lot configurations, shortened
streets, and reduced utility runs. Long term cost savings can also be realized by the City of
Chanhassen associated with infrastructure maintenance costs.
(f) Implement the policies and recommendations found in the Bluff Creek Watershed Natural
Resources Management Plan. The terms, definitions and appendices found in the management
plan are incorporated herein.
(Ord. No. 286, § 8, 12-14-98)
Sec. 20-1552. Intent.
The city intends that all development within the district including commercial, industrial and residential
uses should blend into the natural environment while protecting Bluff Creek and sensitive land areas abutting
and in the vicinity of the watercourse and its tributaries. The criteria by which new development in the district
shall be judged are as follows:
(a) Consistency with all provisions of the Comprehensive Plan which includes the Bluff Creek
Watershed Natural Resources Management Plan, as amended from time to time; the surface
water management plan; all provisions of the zoning ordinance and subdivision ordinance not
specifically overridden by the provisions of this district; and all other applicable land use
regulations.
(b) Preservation of the natural conditions found in the primary zone and to the greatest extent
possible, preserving significant resources and minimizing impacts in the secondary zone
through cluster development and other practices which minimize the removal of vegetation,
minimize site grading, and application of practices found in the city's Best Management
Practices Handbook.
(c) Creation of a suitable balance between the amount and arrangement of open space,
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ARTICLE XXXL BLUFF CREEK OVERLAY DISTRICT
Page 2 of 4
landscaping, view protection, bluff protection, and vegetation protection and the design and
function of manmade features.
(d) Creation of an interconnected open space network that preserves migratory patterns for
wildlife.
(e) Creation of an interconnected open space network that provides recreational and
educational opportunities for people.
(Ord. No. 286, § 8, 12-14-98)
Sec. 20-1553. District application.
The BCO district shall be applied or superimposed (overlaid) upon all zoning districts as contained
herein as existing or amended by the text and map of this ordinance. The regulations and requirements
imposed by the BCO District shall be in addition to those established for districts which jointly apply. Under the
joint application of the districts, the more restrictive requirements shall apply.
(Ord. No. 286, § 8, 12-14-98)
Sec. 20-1554. Conditional use permits.
(a) A conditional use permit shall be issued by the city for all subdivisions, site plans, and prior the
erection or alteration of any building or land within the BCO.
(b) All lots of record in existence and parcels of land located within the Bluff Creek Overlay District on
which a principal structure has been constructed prior to December 14, 1998, are exempt from
requiring a conditional use permit. Further subdivision of the property will require a conditional use
permit and shall comply with the Bluff Creek Overlay District.
(Ord. No. 286, § 8, 12-14-98; Ord. No. 364, § 1, 1-12-04)
Sec. 20-1555. Boundary delineation.
(a) Generally. Primary and secondary zones shall be subject to the requirements established herein,
as well as restrictions and requirements established by other applicable city ordinances and
regulations. The Bluff Creek Overlay District regulations shall not be construed to allow anything
otherwise prohibited in the zoning district where the overlay district applies.
(b) Boundaries; maps. The primary and secondary zones include land that is generally defined in this
ordinance and in the Bluff Creek Watershed Natural Resources Management Plan. Boundaries as
established by officially adopted city maps shall be prima facie evidence of the location and type of
watershed zone. The official maps shall be developed and maintained by the planning department. The
applicant shall provide appropriate technical information, including but not limited to a topographical
survey, flora and fauna survey and soil data deemed necessary for the city to determine the exact
watershed zone boundary. The community development director shall make a determination to
maintain the officially designated watershed zone boundary or if the boundaries need to be corrected
on city plans and maps based upon the data that is supplied. Data for watershed zone delineation shall
be generated and provided by a qualified professional specializing in watershed management,
environmental science or other related profession. The applicant may appeal the community
development director's determination of the watershed zone boundary and type to the city council.
(Ord. No. 286, § 8, 12-14-98; Ord. No. 377, § 155, 5-24-04)
Sec. 20-1556. Impervious cover and slopes.
To the greatest extent possible, all development shall minimize the amount of impervious surface by
clustering development, using common access drives and utility corridors and minimizing building footprint
size. Roads, walkways, bike trails, and parking areas must be designed parallel to natural contours with
consideration to maintaining consolidated areas of natural topography and vegetation. Management of surface
run-off caused by impervious cover shall be designed using practices delineated in the city's Best
Management Practices Handbook.
Within the secondary zone of the BCO District, areas with average slopes exceeding 25 percent shall
be preserved in their natural state and maintained as permanent open space. Areas with average slopes less
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ARTICLE XXXI. BLUFF CREEK OVERLAY DISTRICT
Page 3 of 4
than 25 percent but greater than ten percent shall not exceed an impervious surface coverage of 25
percent. Impervious coverage for areas where average slopes are less than ten percent shall be governed by
the underlying zoning district.
(Ord. No. 286, § 8, 12-14-98)
Sec. 20-1557. Bluffs.
Bluffs shall be preserved as provided for under article XXVIII.
(Ord. No. 286, § 8, 12-14-98)
Sec. 20-1558. Site views.
Through environmentally sensitive design such as "terrain adaptive architecture" (see Figure 1),
landscaping and site planning, site views both to and from the BCO district shall be preserved and enhanced
to the greatest extent possible so as to maintain views that reflect and protect the natural beauty of the BCO
District. Special attention should be given to views that are highly accessible to the public such as scenic
overlooks, ridges and trails. Clustering of development away from natural overlooks is encouraged.
GRAPHIC LINK: Figure 1. "Published in APA PAS Report #466"
(Ord. No. 286, § 8, 12-14-98; Ord. No. 377, § 156, 5-24-04)
Sec. 20-1559. Density clustering.
Density clustering shall be allowed as a tool to facilitate cluster development within the Bluff Creek
Overlay District. Density clustering may be used in areas where portions of the site are unsuitable for
development because of the location of the primary zone. Density clustering shall not be allowed for areas that
are otherwise considered unbuildable due to wetlands, lakes and other areas not suitable for building
purposes.
In areas where density clustering is applicable, density may be transferred to unconstrained parts of the
site within land included in the secondary zone, subject to the restrictions of this ordinance, and within land
lying outside of identified zone areas. Additionally, the following conditions may qualify for density clustering:
(a) Land slopes in the secondary zone that exceed 25 percent on average.
(b) Land in the secondary zone containing stands of native trees.
(c) Land with suitable natural habitat to endangered or threatened species or a fragile
ecosystem.
GRAPHIC LINK: Traditional Development Pattern
GRAPHIC LINK: Cluster Development
GRAPHIC LINK: Industrial Cluster Development
(Ord. No. 286, § 8, 12-14-98; Ord. No. 377, § 157, 5-24-04)
Sec. 20-1560. Standards and guidelines for single-family attached or cluster -home PUDs.
Single-family attached, cluster, zero lot line, and similar dwelling types shall only be allowed on sites
designed for low, medium or high density residential uses by the City of Chanhassen Comprehensive Plan.
(Ord. No. 286, § 8, 12-14-98)
Sec. 20-1561. Natural habitat preservation.
(a) Natural habitat areas within the primary zone shall be preserved as permanent open space. Any
development that occurs shall be directly related to the development of a continuous greenway along
the creek from the Minnesota River to Lake Minnewashta as outlined in the Bluff Creek Watershed
http://libraryl2.municode.comlgateway.dll/MN/minnesotal26131270312734?f=templates$fn=document-fr... 6/14/2005
ARTICLE XXXI. BLUFF CREEK OVERLAY DISTRICT
Natural Resources Management Plan.
Page 4 of 4
(b) Where possible, any disturbances of natural habitat areas within the secondary zone shall be
avoided. Any alterations to the natural habitat within the secondary zone shall adhere to the practices
delineated in the city's Best Management Practices Handbook.
(Ord. No. 286, § 8, 12-14-98; Ord. No. 377, § 158, 5-24-04)
Sec. 20.1562. Natural habitat restoration plan.
If natural habitat areas located within the secondary zone will be disturbed during any stage of
development, the applicant shall submit a detailed plan identifying the resources that will be disturbed and a
corresponding restoration and/or mitigation plan. Such restoration might include wetland mitigation and
replanting of habitat significant to endangered and threatened species.
(Ord. No. 286, § 8, 12-14-98)
Sec. 20-1563. Open space requirements.
Open space shall comprise 100 percent of the area located within the primary zone. The city will
establish the boundary for the primary zone using data provided by the applicant.
(Ord. No. 286, § 8, 12-14-98)
Sec. 20-1564. Structure setbacks.
All structures shall be set back a minimum of 40 feet from the primary zone. No disturbances of the site
shall occur with the first 20 feet of such setback.
(Ord. No. 286, § 8, 12-14-98; Ord. No. 364, § 2, 1-12-04; Ord. No. 377, § 159, 5-24-04)
http://libraryl2.municode.comlgateway.dIUNIN/minnesota/261312703/2734?f=templates$fn=document-fr... 6/ 14/2005
CITY OF CHANHASSEN
CARVER AND HENNEPIN COUNTIES, MINNESOTA
AN ORDINANCE AMENDING CHAPTER 20, ARTICLE 30W
CHANHASSEN CITY CODE,
BLUFF CREEK OVERLAY DISTRICT
THE CITY COUNCIL OF THE CITY OF CHANHASSEN, MINNESOTA ORDAINS:
Section 1. Section 20-1564 of the City Code, City of Chanhassen, Minnesota, is hereby
amended to read as follows:
(a) All structures shall be set back a minimum of 40 feet from the primary zone, except
as specified below. No disturbances of the site shall occur within the first 20 feet of
such setback from the primary zone boundary.
(b) On parcels of land located within the Bluff Creek Overlay District on which a
principal structure has been constructed prior to December 14, 1998:
(1) The minimum setback from the primary zone shall be the existing principal
structure setback, if less than 40 feet.
(2) If the existing principal building or structure setback is less than 40 feet and
greater than or equal to 20 feet, then the first 50 percent of the established primary
zone setback shall remain undisturbed.
(3) If the existing principal building or structure setback is less than 20 feet there
shall be no grading or alterations beyond the existing setback.
Section 2. This ordinance shall be effective immediately upon its passage and
publication.
PASSED AND ADOPTED this 25'" day of April, 2005, by the City Council of
the City of Chanhassen, Minnesota
Todd Gerhardt, City Manager
Thomas A. Furlong, Mayor
(Published in the Chanhassen Villager on May 5, 2005)
Bluff Creek Overlay
District Boundary
Bluff Creek Overlay District
Bluff Creek Overlay District
Old version of Bluff Creek Overlay District
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industrial development services
DATE: June 10, 2005
TO: City of Chanhassen -
Planning De0artment
SUBJECT: Define Limits of Developable Acreage of the G.E. Site on Audubon Road.
SITE LOCATION:
The site of approximately 38.77 acres is located in the northwest quadrant of the intersection of
Audubon Road and the Chicago, Milwaukee, Pacific Railroad in Chanhassen, Minnesota.
SITE MAKEUP:
The site consists of several acres of roiling land sloping down to a wetland. Of the total site,
approximately 16.37 acres have been designated wetlands which also require a sixteen foot (16.0')
setback and an additional forty feet (40.0') of buffer area which cannot be built on. This wetland
exists on the westerly portion of the property. The easterly portion of the site abutting Audubon
Road which has been designated primary development land is approximately twelve (12) actes in
area. That portion of the site abutting and directly west of the primary development site has been
designated the secondary development area and is approximately six (6,0) acres in area. The
remaining portion of the site designated non -developable is approximately 4.4 acres in area.
BLUFF CREEK BOUNDARY:
Running through the entire site from east to west is a line called the Bluff Creek Overlay District
Boundary. This line further defines,a portion of the site, to be protected and also carries two twenty
foot (20.0') buffer zones.
ISSUES:
The issue before us is that those portions of the total site that are either wetland, outside the Bluff
Creek Boundary Line or non -developable land reduces the amount of developable property to
approximately eight (8.0) acres of the total38.77 acres. This is only about twenty percent (20%) of
the total acreage and is unacceptable to the land owner.
PURPOSE OF THIS APPLICATION:
The purpose of this application is to find a way that redefines some of the site restrictions in order
that more of the total property can be used for development. Since the wetland cannot be adjusted,
we are requesting that the city provide a variance that would allow the Buff Creek Boundary Line
to be adjusted in a way that would achieve this goal. Our request would be that at the forward
twelve (12) acres of the site, the Buff Creek Boundary Line be the same line as the northerly .
property line (Se attached plans) and that where the property line intersects with the sixteen foot
(16.0') setback line of the wetland, that the Buff Creek Boundary Line and the sixteen foot (16.0')
wetland setback line become the same. The forty foot (40.0') buffer for the wetland and the forty
foot (40.0') buffer for the Bluff Creek Boundary Lire also become one and the same (see attached
plans). This increases the potentially developable area of the site from eight (8) to approximately
eighteen (18) acres or forty-five (45) percent of the total site. This would be a' much more
acceptable solution to the land owner and hopefuily the city. Thank you for your consideration of
this issue.
Liv Hornland r g du' onceaux Af
Real Estate Representative for G.E. R presen Potential Developer
9733 Mill Creek Drive Eden Prairie,.MN 55347 . (612) 275-7 879
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industrial development services
DATE: June 10, 2005
TO: City of Chanhassen
Planning De¢artment
SUBJECT: Define Limits of Developable Acreage of the G.E. Site on Audubon Road.
SITE LOCATION:
The site of approximately 38.77 acres is located in the northwest quadrant of the intersection of
Audubon Road and the Chicago, Milwaukee, Pacific Railroad in Chanhassen, Minnesota.
SITE MAKEUP:
The site consists of several acres of rolling land sloping down to a wetland. Of the total site,
approximately 16.37 acres have been designated wetlands which also require a sixteen foot (16.0')
setback and an additional forty feet (40.0') of buffer area which cannot be built on. This wetland
exists on the westerly portion of the property. The easterly portion of the site abutting Audubon
Road which has been designated primary development land is approximately twelve (12) acres in
area. That portion of the site abutting and directly west of the primary development site has been
designated the secondary development area and is approximately six (6.0) acres in area. The
remaining portion of the site designated non -developable is approximately 4.4 acres in area.
BLUFF CREEK BOUNDARY:
Running through the entire site from east to west is a line called the Bluff Creek Overlay District
Boundary. This line further defines,a portion of the site, to be protected and also carries two twenty
foot (20.0') buffer zones.
ISSUES.
The issue before us is that those portions of the total site that are either wetland, outside the Bluff
Creek Boundary Line or non -developable land reduces the amount of developable property to
approximately eight (8.0) acres of the total 38.77 acres. This is only about twenty percent (20%) of
the total acreage and is unacceptable to the land owner.
PURPOSE OF THIS APPLICATION:
The purpose of this application is to find a way that redefines some of the site restrictions in order
that more of the total property can be used for development. Since the wetland cannot be adjusted,
we are requesting that the city provide a variance that would allow the Buff Creek Boundary line
to be adjusted in a way that would achieve this goal. Our request would be that at the forward
twelve (12) acres of the site, the Buff Creek Boundary Line be the same line as the northerly
property line (Se attached plans) and that where the property Inge intersects with the sixteen foot
(16.0') setback line of the wetland, that the .Buff Creek Boundary Line and the sixteen foot (16.0')
wetland setback line become the same. The forty foot (40.0') buffer for the wetland and the forty
foot (40,0') buffer for the Bluff Creek Boundary Lire also become one and the same (see attached
plans). This increases the potentially developable area of the site from eight (8) to approximately
eighteen (18) acres or forty-five (45) percent of the total site. This would be a much more
acceptable solution to the land owner and hopefully the city. Thank you for your consideration of
this issue.
Liv Hornland
Real Estate Representative for G.E.
r du' onceaux A(
R presen Potential Developer
9733 Mill Creek Drive • Eden Prairie, MN 55347 . (612) 275-7879
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