CCR2002098COMMON COUNCIL -CITY OF MUSKEG0
RESOLUTION #98-2002
APPROVAL OF OPEN SPACE MANAGEMENT PLAN AGREEMENT
Rosewood Estates Addition No. 1
WHEREAS, An Open Space Management Plan Agreement has been received for
development of Rosewood Estates Addition #I and the Plan Commission has reviewed
it and has recommended approval through Resolution #P.C. 054-2002.
NOW, THEREFORE, BE IT RESOLVED That the Common Council of the City of
Muskego, upon the recommendation of the Plan Commission, does hereby approve the
attached Open Space Management Plan Agreement, subject to approval of the City
Attorney and City Engineer
BE IT FURTHER RESOLVED That the Mayor and Clerk-Treasurer are hereby
authorized to sign the necessary document in the name of the City.
DATED THIS 23rd DAY OF April ,2002
SPONSORED BY:
Ald. William Le Doux
This is to certify that this is a true and accurate copy of Resolution #98-2002 which was
adopted by the Common Council of the City of Muskego.
4/02 jmb
City of Muskego
Plan Commission Supplement PC 054-2002
For the meeting of: April 16,2002
REQUEST: Open Space Management Plan, Rosewood Estates Addition No. 1
Tax Key No. 2202.033
NW 1h of SECTION 11
PETITIONER: Miller
INTRODUCED: April. 16,2002
LAST AGENDA N I A
PREPARED BY: Brian Turk
BACKGROUND PC 054-2002
Petitioner is preparing a Final Plat of Rosewood Estates Addition No. 1. This addition is to be developed on an
outlot in Rosewood Estates, which was retained for possible City acquisition. In 2000, the Common Council
declined to pursue the acquisition. As a condition of the Preliminary Plat approval, the petitioner is required to
execute an Open Space Management Plan for the property’s wetlands. This must be done prior to the final
plattlng. 0
PLAN CONSISTENCY PC 054-2002
.. .. .
The 2010 Plan calls for medium density residential development. The propi&
is consistent with the plan.
20,000 square foot lot sizes. The use is permitted by right in the District.
The property is currently zoned RS-2 Suburban Residence District, requiring
1 The 2001-2005 Park and Open Space Plan does not recommend any
1 The Plan illustrates the area for medium priority management. Discussion 01
Conservation Plan: the Open Space Management Plan is found below. The proposal is consistenl
with the Plan.
The parcel abuts Rosewood Drive. Which has been dedicated to its full width
Street System Plan: with the land division for Rosewood Estates. The proposal is consistent with the
Comprehensive Plan:
Zoning:
~.~ . ~. . ~
~. ... . . .~.. .. ~ ..
and Open Space ‘la”: i acquisitions in this area. The proposal is consistent with the Plan. ... . ~.
Utility Service Areas: approved by the Utility Committee. The proposal is consistent with Service Area
Municipal sewer will. serve the property. Private water services have been
plans.
-
STAFF DISCUSSION PC 054-2002
The Open Space Management Plan identifies the land cover types - wetland and wet woodland. The document
identifies timelines for land management strategies to be implemented by the developer and parcel owners, and
duties of the City Conservation Coordinator in the long term implementation of the Plan. The Plan is simplified,
compared to the Martin Estates Plan, due to the low priority of the area's ecological features. It calls for
construction management practices. and control of purple loosestrife and other invasive species, with little other
administration required.
STAFF RECOMMENDATION PC 054-2002
Approval of Resolution #PC 054-2002
0 APPROVAL OF AN OPEN SPACE MANAGEMENT PLAN FOR ROSEWOOD ESTATES
RESOLUTION #P.C. 054-2002
ADDITION NO. 1 LOCATED IN THE NW % OF SECTION 11
(TAX KEY NO. 2202.033)
WHEREAS, The Conservation Plan depicts certain portions of the Rosewood Estates Addition No.
1 property to be a medium management priority, and
WHEREAS, As a condition of Preliminary Plat approval for Rosewood Estates Addition No. 1 the
final platting, and
Finance Committee of the Common Council required the execution of a Management Plan prior to
WHEREAS, An Open Space Management Plan was submitted by the City of Muskego
Conservation Coordinator for Rosewood Estates Addition No. 1 located in the NW X of Section 11,
and
WHEREAS, The Open Space Management Plan provides short term and long term land
management guidelines for the developer and future parcel owners.
THEREFORE BE IT RESOLVED, That the Plan Commission approves of the Open Space
Management Plan for Rosewood Estates Addition No. 1, located in the NW X of Section 11
BE IT FURTHER RESOLVED, That a copy of said Plan shall be kept on file in the Planning
Department and that all aspect of this plan as they relate to land management shall be maintained
in perpetuity unless otherwise authorized by the Common Council, or their successors and assigns.
shall result in the imposition of fines of $100 per day, the initiation of legal action, or both.
BE IT FURTHER RESOLVED, That failure to comply with the approval contained in this Resolution
Plan Commission
City of Muskego
Adopted: April 16, 2002
Defeated:
Deferred:
Introduced. April 16, 2002
ATTEST. Sandi Asti, Recording Secretary
ROSEWOOD ESTATES ADDITION #I
OPEN SPACE MANAGEMENT PLAN AGREEMENT
This Agreement, made and entered into this day of ,2002 by Donald
G. Miller (hereinafter referred to as 'Subdivider") and the City of Muskego. a Municipal
Corporation located in the County of Waukesha and the State of Wisconsin, (hereinafter
referred to as 'Civ).
WITNESSETH:
WHEREAS, the Subdivider is the owner of certain lands commonly known as Outlot 1 of
Rosewood Estates (hereinafter referred to as 'Property" and as illustrated in Exhibit A), and part
of a subdivision located in the NE % and NW X of Section 11, T5N R20E. City of Muskego,
Waukesha County. Wisconsin (hereinafter referred to as "Subdivision"); and
WHEREAS, The City of Muskego Conservation Plan, dated August 1. 2001 and on file at the
City of Muskego Planning Department. identifies certain environmentally significant lands within
the City; and
WHEREAS, The Conservation Plan encourages the preservation of environmentally significant
lands which lie within areas to be developed; and
WHEREAS, The City of Muskego Common Council has approved a Preliminary Plat of
Rosewood Estates Addition #1 which occupies the Property; and
WHEREAS, The City of Muskego Common Council approved the release of the park and open
space reservation noted on the Final Plat of Rosewood Estates subject to the placement of a e new preservation easement on the wetland area within the Property; and
WHEREAS, The Subdivision depicts parcels containing environmentally significant lands; and
WHEREAS, Chapter 18 of the City of Muskego Municipal Code requires the creation and
implementation of Open Space Management Plans for subdivisions containing certain
environmentally significant lands; and
WHEREAS, The City reserves the right to enforce the requirement that the wetlands on
individual parcels be maintained in a manner consistent with this Agreement and the Rosewood
Estates Open Space Management Plan on tile in the offices of the City of Muskego Planning
Department as required by the Chapter 18 of the City of Muskego Municipal Code;
NOW THEREFORE, in consideration of the mutual covenants and agreements, IT IS AGREED,
as follows:
1 The Subdivider warrants and represents that it is the sole owner of the lands subject to this
Agreement free and clear of all encumbrances, except recorded easements and restrictions
and municipal and zoning ordinances and real estate taxes in the year of closing.
2. The Subdivider or Association, unless otherwise provided for in the Rosewood Estates
Addition #I Open Space Management Plan approved ,2002, and as
attached hereto, shall be responsible for management of the vegetation within the wetlands
of the Subdivision.
3. The Subdivider shall deposit in a segregated account with the City two thousand dollars
($2,000) to cover costs associated with initial duties of the Subdivider outlined in Section 111
of the Rosewood Estates Addition #l Open Space Management Plan.
Open Space Management Plan Agreement
Rasewood Estates Addition #1
Page 2
@ 4. The City of Muskego is authorized to access the Property to conduct inspections of
vegetative cover within wetlands as necessary to ascertain that the vegetation is being
maintained in accordance with the approved Rosewood Estates Addition #1 Open Space
Management Plan, which include but are not limited to invasive species control.
5. The City shall provide the Subdivider or lot owner an inspection report detailing any
noncompliant items. Subdividor may be required upon notification by the City of Muskego.
to take corrective actions within a reasonable timeframe to address vegetation maintenance
problems within the Property. The City of Muskego is authorized to perform the corrective
actions identified in the inspection report if the lot owner does not make the required
corrections in the specified time period. Costs incurred for corrective actions shall be drawn
against the segregated account. The balance of the segregated account shall be released
to the Subdivider upon satisfactory completion of initial duties of the Subdivider outlined in
Section 111 of the Rosewood Estates Addition #I Open Space Management Plan.
6. Individual lot owners shall maintain their lots in accordance with the approved Rosewood
Estates Addition #1 Open Space Management Plan on file in the offices of the City of
Muskego Planning Department as required by Chapter 18 of the City of Muskego Municipal
Code. Individual lot owners may be required upon notification by the City of Muskego, to
take corrective actions within a reasonable timeframe to address vegetation maintenance
problems within their lots. The City of Muskego is authorized to perform the corrective
actions identified in the inspection report if the lot owner does not make the required
corrections in the specified time period. If unpaid, such charges shall be entered on the tax
roll as a speaal charge or special assessment against the owner and collected with any
other taxes levied thereon for the year in which the work is completed. 0
7. This document shall be recorded with the Waukesha County Register of Deeds and shall be
a covenant running with the land and binding upon all owners of said land.
IN WITNESS HEREOF, Subdivider has caused this Agreement to be signed by its appropriate
officers and their seals to be hereunto affixed in duplicate original counterparts on the date and
year first written above.
By:
Donald G. Miller, Owner
STATE OF WISCONSIN ) SS
WAUKESHA COUNTY )
PERSONALLY came before me this - day of , 2002 Donald G. Miller. to me
known to be the person who executed the foregoing instrument and acknowledged the same.
Notary Public-State of Wisconsin
My Commission Expires
Rosewood Estates Addition #1
Open Space Manaoement Plan Agreement
Page 3
CITY OF MUSKEG0
By:
David L. DeAngelis, Mayor
By:
Jean K. Marenda. City Clerk-Treasurer
STATE OF WISCONSIN}SS
WAUKESHA COUNTY }
Personally came before me this day of , 2002 the above named David L.
DeAngelis, Mayor and Jean K. Marenda. City Clerk-Treasurer, of the above-named municipal
corporation City of Muskego. to me known to be the persons executed the foregoing
instrument, and to me known to be such Mayor and City Clerk-Treasurer of said municipal
corporation, and acknowledged that they executed the foregoing instrument as such officers as
the deed of said municipal corporation by its authority and pursuant to the authorization by the
Common Council from their meeting on the day of ,2002.
Notary Public, Waukesha County, Wisconsin
MY commission expires
Rosewood Estates Addition #1
Open Spa= Management Plan Agreement
0
Page 4
CERTIFICATION
This is to certify that the foregoing is a true and correct copy of the Open Space Management
this - Plan Agreement for Rosewood Estates Addition #1, Muskego. Wisconsin, as entered into on
day of , 2002 by and between Rosewood Estates Corporation, the
Rosewood Estates Homeowners Association, Inc. and the City of Muskego. pursuant to the
authorization by the Common Council from their meeting on the day of
2002.
BY THE COMMON COUNCIL
Jean K. Marenda
City Clerk-Treasurer
SUBSCRIBED AND SWORN TO BEFORE ME
this day of ,2002.
Notary Public, Waukesha County, Wisconsin
My commission expires
This document drafted by
Tom Zagar, Conservation Coordinator
City of Muskego
PO Box 749
Muskego. WI 53150
fl . . . . . . -
OPEN SPACE MANAGEMENT PLAN
EXHIBIT "A"
FOR: DONALD MILLER DATE: 3/7/02
DESCRIPTION: BEING OUTLOT 1 OF ROSEWOOD ESTATES. A SUBDIVISION OF PART OF THE NE't4 OF THE NW'Z, AN0 THE NW'/4 OF THE NE'/4 OF SECTION 11. TOWN 5 NORTH. RANGE 20 EAST. IN THE CITY OF MUSKEGO. WAUKESHA COUNTY. WISCONSIN.
POINT OF BEGINNING
/
wnoT INFORMATIOH TAKEN FROM RMEWOW ESTATES FINAL PLAT. RECCROEO AS OOC. 12552811. VOL. 49. PACE 16.
CURVE DATA
CHORD BE ARINO
Cl 65.21' 110.00' 05'15'43' 65.18' 513'52'18'E C2 21.55' 15.00' 82'10'29. 19.14' 514'18'39.5-E C3 10.39: 120.00' 04'57'35. 10.38' 524'21'41.5.W C4 26.81 15.00' 102'39'06' 23.42' 573'12'33.W
e ROSEWOOD ESTATES ADDITION #1 OPEN SPACE MANAGEMENT PLAN
TABLE OF CONTENTS
SECTION 1 . VEGETATION COVER TYPES OF ROSEWOOD ESTATES ADDITION #1
Introduction ................................................................................... 1
Mixed Hardwood Forest .................................... .......................................... 1
Wetlands .................................................................................. ...... 2
SECTION I1 -RECOMMENDATIONS AND REQUIREMENTS
Mixed Hardwood Forest .................................................................................. 3
Wetlands ................................................................................................................... 5
Storm Water Ponds and Drainage Swales .................................................................. 7
Prairie (Wildflower) Plantings ............................................................................. 9
SECTION 111 - INITIAL DUTIES AND RESPONSIBILITIES OF THE SUBDIVIDER 13
SECTION IV - DUTIES AND RESPONSIBILITIES OF THE HOMEOWNERS ........... 13
SECTION V - DUTIES AND RESPONSIBILITIES OF THE CITY OF MUSKEG0 ........ 14
SECTION 1: VEGETATION COVER TYPES OF ROSEWOOD ESTATES ADDITION 1
Introduction
This Open Space Management Plan includes a proposed program to preserve, manage and use
open spaces and natural areas within the Rosewood Estates Addition #I subdivision. The plan
provides general methods and procedures for managing, improving, and sustaining the quality of
the natural habitats of Rosewood Estates Addition #I. It also provides recommendations on
landscaping and managing open space areas that were manipulated or disturbed in the
development process. This document serves as a Work Plan, and as such, provides general
recommendations about expected habitat management issues. It contains information about
managing lawns, wildflower and grassland prairie areas, woodland management, and pond
maintenance and encourages the use of vegetation types historically found in the region.
Techniques for managing invasive, weedy plant species, such as Buckthorn, Honeysuckle, and
Garlic Mustard, are also provided.
The City of Muskego Conservation Coordinator is available to provide technical assistance and
literature references. References to other agencies, native plant nurseries and private consultants
can also be provided to help in this Plan’s execution.
Mixed Hardwood Forest - (Historically Oak Savanna)
0 Description
The forested area of Rosewood Estates Addition #1 was historically an oak savanna. Oak
savanna was the predominant land cover type of southern Wisconsin before European settlement,
This transition between the prairies of the Central Plains and the forests of eastern North
America consisted of forests of scattered trees where numerous prairie grasses and wildflowers
thrived within the openings. Periodic wild fires minimized the extent of most woody plants.
Certain trees, primarily oaks with their thick bark, withstood these fires. Bur Oak (Quercus
macrocarpa) is the predominant tree of oak savannas, however White Oak (Quercus alba), Red
Oak (Quercus rubra), Shagbark Hickory (Cay ovata), and Black Walnut (Jugluns nigra), also
grew in this ecotype. However, because of human manipulation of the land, fire suppression and
effects of competing invasive plants, few healthy oak savannas exist. Species composition has
been altered and species diversity has been greatly reduced.
The area has now evolved into a mixed hardwood forest with more shade tolerant woodland trees
such as American Basswood (Tilia americana) and Sugar Maple (Acer saccharum). Under-story
tree species of Ironwood (Osttya virginiana) and Downy Hawthorn (Crataegus mollis) are also
found. Shade tolerant woodland forbs now grow in place of the prairie species that once existed
here. There are several older-aged Bur Oaks, White Oaks, Shagbark Hickory, and oaks that
appear to be Bur x White hybrids. A few younger-aged Shagbark Hickory and Red Oaks were
found near the forest edge. However, shade has suppressed the regeneration of oak trees within
the interior of the forest.
Draft - March 6,2002
Rosewood Estates Addition 1 hen Space Management Plan
Dead trees within a residential yard are usually hazards to human life and property and need to 0 be removed. However, within the forest, they provide habitat for a variety of wildlife. Dead
trees typically have cavities that serve as nesting sites for mammals and cavity-nesting birds.
These include deer mice, squirrels, chipmunks, owls, kestrels, woodpeckers, chickadees,
nuthatches, and the great-crested flycatcher. Furthermore, the decay of fallen trees cycles
nutrients back into the soil where they become available for the growth of more plants.
lnvarive Species
Two invasive shrub species are of a concern in the forest: Tatarian Honeysuckle (Lonicera
talarica) and European Buckthorn (Rhamnus cathartica). Both of these plants were originally
brought to North America for use as landscape plants but have now spread into forests over
much of the continent. These species leaf out sooner than most native woodland trees. Native
woodland flowers such as Jack-in-the-pulpit (Aerisaema trifollium), Trilliums (Trillium
grandflomm), Bloodroot (Sanquinana canadensis), and Mayapple (Podophyllum
peltatum) flourish in the sunlight that comes through the forest cy~opy before the trees leaf-out.
The early-leafing buckthorn and honeysuckle inhibit the growth of these native plants on the
forest floor. Not only are humans robbed of the chance to witness a spectacular display of spring
flora, the wildlife that relies on the native species for food and habitat is greatly impacted. This
shading effect also inhibit the regeneration of forest trees and, over time, the area can transform
into a dense thicket of these invasive shrubs.
Garlic mustard (Alliaria petiolata), another invasive non-native plant, is a potential threat to the 0 health of the woods in Rosewood Estates Addition #l. This prolific biennial herb can quickly
dominate the ground flora of a forest at the expense of the diverse assemblage of native
woodland flowers. Fortunately, Garlic mustard does not currently appear to be a problem within
the forest.
Multiflora Rose (Rosa mulfzjlora) is a nuisance member of the rose family initially brought to
North America from Japan. It can form a dense thicket of spreading branches that have
hazardous sharp curved thorns. Few Multiflora Rose shrubs were seen at Rosewood Estates
Addition #1.
Wetlands
Description
Wetlands have tremendous ecological significance. They help to improve water quality, help
retain storm water, provide critical habitat for a variety of other wildlife, including frogs,
salamanders, and turtles. Many people mistakenly think of wetlands as mosquito breeding
grounds. However, a healthy wetland habitat attracts beneficial insects such as dragonflies, and
birds such as swallows, swifts, and flycatchers -all of which prey on mosquitoes.
The wetlands at Rosewood Estates Addition #I contain a transition from a wet forest edge lo a
more open area that was likely a former sedge meadow. The wetland trees are species more
tolerant of periodic inundation such as Bur oak, American Elm (Illmus americana) and Green
2
Draft - March 6, 2002
Rosewood Estates Addition 1 &en SDace Management Plan
Ash (Fraxinuspennsylvanica). Woody shrubs include Sandbar Willow (Salix inferior), Redosier
Dogwood (Cornus sericea), and Grey Dogwood (Cornus racemosa). The open areas between
the woody wetland plants are predominantly covered with invasive Reed Canary Grass (Phalaris
amndinacea) and Cattails (Typha spp.).
Invasive Species
Reed Canary Grass is an aggressive sod-forming grass that is over-taking many wetlands and
adjacent uplands in North America. Although a native strain exists, a more vigorous Eurasian
strain was introduced for use as forage and erosion control. This Eurasian strain out-competes
native flora and creates a monotypic (single species) stand that is of little use to wildlife. Within
Rosewood Estates Addition #I this invader now covers most of the open wetland area and
extends into openings within the forest edge.
Purple Loosestrife is an extremely invasive wetland plant. This plant has showy purple flowers
but its impact to wetlands isn’t so pretty. Like other invaders, it can dominate an area to the
extent that other species are eliminated. This plant has invaded the wetlands and grows within
Outlot 2 (storm water retention pond) of Rosewood Estates.
SECTION 11: RECOMMENDATIONS AND REQUIREMENTS
Mixed Hardwood Forest
Although they are both present in Rosewood Estates Addition #1, neither Tartarian Honeysuckle
nor European Buckthorn has developed a strong foothold in the forest and control is achievable.
The shrubs are mainly growing near the forest edges including the transition area into the
wetlands. Both species can be controlled by cutting the shrubs at ground level and treating the
stumps with a glyphosate herbicide. This is best done in the fall of the year when sap flows
toward the roots and these plants are easily spotted due to their tendency to hold their leaves
longer. Cut stems should be removed and disposed of, as they are capable of re-rooting. The
few Multiflora Rose plants can also be controlled in the same manner.
Control of a Garlic Mustard infestation is quite labor-intensive so this plant should be kept from
establishing within the woodlands of Rosewood Estates. Plants can be hand pulled in spring
before they set seed. Pulled plants must be bagged and land tilled. The hand-pulling regimen
must continue for several years until the existing seed bank of Garlic Mustard is exhausted.
Timely spraying of herbicides and prescribed bums are also effective control techniques
provided they are conducted in spring before most native woodland plants green-up. Reseeding
or replanting with native woodland flora may be required.
There are many references available that detail specific invasive species control techniques. The
Wisconsin Department of Natural Resources web site contains many excellent online and offline
references (ht~://www.dnr.state.wi.us/org/land/er/invasive/index.htm).
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Draft - March 6,2002
Rosewood Estates Addition I men SDace Management Plan
0 Preservation
Residential development within wooded areas should be done in a manner that will minimize the
impact on the forest community. Careful placement of roads, driveways, utilities and building
pads is paramount. Cut and till operations should be confined to these development areas.
Excavated materials should not be spread or placed upon existing natural areas. Most woodland
trees and ground flora are intolerant of even minor grade changes. Fill material brought into a
construction site can potentially introduce unwanted weed seeds.
Damage From heavy equipment and even light vehicles can gravely damage mature trees. Soil
compaction is a greater threat than the more obvious trunk scarring. The effects of construction
damage offen take 5 to 7 years before they finally kill a tree and the building contractors have
long since completed their work. Homeowners don’t relate the tree’s death to construction
activities several years earlier. To successfully preserve trees near construction sites, snow
fencing and signage should be erected around the tree’s critical root zone. This zone usually
extends beyond the drip line of the tree canopy. General contractors must make all
subcontractors aware of tree preservation procedures.
Requirements
Persons wishing to develop lots that contain wetland and wet wooded areas (lot #’s 20 through
28) shall set up a pre-construction meeting with the Muskego Conservation Coordinator and their
contractor prior to any clearing or soil disturbance. Strategies to best preserve trees and forest
health will be planned. These include minimizing grading operations, protecting trees’ critical
root zones, and design of compatible landscaping.
The homeowners are encouraged to eradicate invasive woodland shrubs from the hardwood
forest. Although contractors can be hired to perfom this work, it will likely be more cost
effectively completed by homeowners themselves. Homeowners should remain vigilant for the
presence of any garlic mustard and begin control if found. It can be said of any invasive species
that early detection and control will make it considerably easier to minimize or eliminate. The
Muskego Conservation Coordinator is available to meet with homeowners to give instructions on
invasive plant identification and control options.
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DraR - March 6,2002
Rosewood Estates Addition 1 &en Space Management Plan
It is recommended that dead trees and snags within the forest be retained whenever possible
where they do not pose safety threats to people or buildings. As mentioned in the section above,
they provide a variety of wildlife habitat.
Wetlands
Control of Invasive Species
Buckthorn and Honeysuckle grow in wetland as well as wooded areas. Control of these invasive
shrubs is described in the section above.
Reed canary grass control involves mowing, burning, andor herbicides. Well-established stands
are difficult to control due to the persistent seed bank in the soil. In some cases, removal of the
top layer of existing soil will remove the unwanted seed bank. However, permits will be
required for th~s control option. Re-seeding with a sedge meadow mix may be necessary if
native seed bank is lost.
Purple loosestrife can be controlled with herbicides when infestations are small. Larger stands of
purple loosestrife are best controlled with the introduction of Gallerucella spp. beetles. These
tiny insects, that keep this plant in check in Europe and Asia, have been imported to control this
plant in the United States. Because they feed exclusively on loosestrife plants, Gallerucella have
not posed a threat to any native plants or cultivated crops.
Any herbicide applied on or near surface water requires a (no fee) permit from the Wisconsin
DNR. Glyphosates specifically formulated for use near water (e.g. Rodeo) must be used. Check
with the regional DNR Aquatic Plant Coordinator before starting an herbicide treatment.
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Draft - March 6,2002
Rosewood Estates Addition I ODen Suace ManaEemenl Plan
Requirements
Waukesha County places restrictions upon areas identified on Subdivision plats as Conservancy I
Wetland Preservation. The following is stated on the Rosewood Estates Final Plat:
Conservancv I Wetland Preservation Restriction
Those areas of land which are identified as ConservancyNVetland
Preservation Area on this Subdivision Plat shall be subject to the following
restrictions:
1 Grading and filling shall be prohibited unless specifically authorized by the
municipality in which they are located and, if applicable, the Waukesha
County Park and Planning Commission, the Wisconsin Department of
Natural Resources, and the Army Corps of Engineers.
2. The removal of topsoil or other earthen materials shall be prohibited.
3. The removal or destruction of any vegetation cover, i.e. trees, shrubs,
grasses, etc.. shall be prohibited with the exception of the removal of
dead, diseased, or dying vegetation at the discretion of landowner, or
forester, or naturalist and the approval of 'the Waukesha County
Department of Parks and Land Use.
4. Grazing by domesticated animals, Le.. horses, cows. etc., shall be
prohibited.
5. The introduction of plant material not indigenous to the existing
environment of the Conservancy I Wetland Preservation Area shall be
prohibited.
6. Ponds may be permitted subject to the approval of the municipality in
which they are located and, if applicable, the Waukesha County Park and
and the Army Corps of Engineers.
Planning Commission, the Wisconsin Department of Natural Resources
7 Construction of buildings is prohibited.
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Rosewood Estates Addition 1 &en Space Mamnement Plan
0 Item #3 in the restrictions stated above should not be interpreted as prohibiting the removal of
exotic or invasive vegetation.
Preservation
Care should be taken to avoid and minimize direct, or indirect, impacts to wetlands.
Management and maintenance activities within wetlands are highly regulated at the federal, state,
and local levels. Regulated activities include clearing, dredging, and filling in or around
wetlands. Effective sediment and erosion control practices will be required during any activities
that could cause sediment-laden runoff to flow into the wetlands.
Restoration projects within wetlands must be conducted in accordance with Wisconsin
Department of Natural Resources (WDNR) guidance, and permits may be required. A good
source of information may be found in the Wetland Restoration Handbook for Wisconsin
Landowners (Alice Thompson and Charles Luthin, WDNR, 2000).
Enhancement
There are some easy techniques to enhance and protect wetlands that do not involve fill,
excavation, or soil disturbance thus generally do not require permits:
Selective strategic plantings would attract wildlife and help to improve water
quality. Edges of the wetland area could be excellent growing locations for tree
species such as the Swamp White Oak, Bur Oak, Shagbark Hickory, and Black
Walnut.
Reducing the lawn effect around the wetlands, by planting wet meadow forbs
(flowering plants), grasses, and bushes such as silky dogwood, would encourage
some wildlife to nest and forage at these wetlands.
A trail system could be installed as a focal point for enjoying the wetlands. The
trail could largely be a mowed path, supplemented by a boardwalk system as
needed.
Tree swallow nest boxes and wood duck boxes could be added, situated within
sight of the trail.
Storm Water Ponds and Drainage Swales
Development of wet storm water detention basins is required within land developments by
Chapter 34 of the Muskego Municipal Code. These "storm water ponds'' serve to capture
sediments and nutrients before water is released to existing surface waters, thereby maintaining
water quality of area lakes and streams. They also provide flood control by slowing the release
of water to existing surface waters. Storm water ponds and associated drainage swales can be
managed to optimize their eficiency and aesthetics.
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Draft - March 6,2002
Rosewood Estates Addition 1 &en %ace Manaaernenl Plan
0 Pond Design and Enhancemenf
Open lawn landscapes along ponds can attract nuisance flocks of Canada geese, so the planting
and maintenance of turf grasses in these areas is discouraged. Geese prefer to graze on lawn
grasses within easy reach of water in the typical “golf course pond” design. While a few nesting
pairs may be welcome, large flocks of geese leave messy droppings causing human health
hazards and diminished water quality of ponds and their associated wetlands. Another concern
with lawns around storm water ponds is the potential use of fertilizers. Fertilizers entering the
water will encourage nuisance plants and algae blooms, thus reducing the pond’s function of
reducing nutrient pollutants. Establishment of natural vegetation around ponds and swales is
encouraged. Wet meadow vegetation and prairie plants that grow taller around these storm water
facilities will minimize the goose problem and ensure better water quality.
A wet meadowkedge mix is recommended around the shallow perimeter of storm water ponds
and drainage swales. Further up in grade, in soils less frequently subject to inundation, a mesic
(medium-moisture) prairie mix is recommended (Establishment of prairie vegetation is discussed
in the following section). Collectively, these plants will serve as a filter to reduce the influx of
sediments, nutrients, and other pollutants, and slow the erosive force of water during storm
events. Aesthetics is an added benefit, as the ponds and swales will appear natural and provide a
greater diversity of plant and animal life to observe. Once established, the vegetation will
require little maintenance.
Many aquatic plants and animals will likely colonize the pond naturally over time. However,
many can be intentionally introduced. It is recommended that only indigenous, non-invasive,
plants be used. Most storm water ponds will not support a fishery because their shallow depths
makes them vulnerable to winter fish kills fiom oxygen depletion. If the pond is deep enough to
support a fishery, it is strongly recommended that a fisheries biologist be consulted prior to any
fish stocking efforts. A healthy fish assemblage, without species such as carp, is critical to the
maintenance of water quality in the pond.
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Rosewood Estates Addition I Open SDace Management Plan
PRAIRIE (WILDFLOWER) PLANTINGS
Establishment
Certain outlot areas within Rosewood Estates Addition #I, including storm water management
facilities discussed above, are ideal sites for the establishment of prairie plantings. Initial
preparation of the planting site requires a bit of work, but once established, prairies are rather
low maintenance. These sites will likely have a surface of recently graded topsoil.
Unfortunately, the soil likely contains seeds of weeds and “cool season” grasses. Prairie plants
are ‘‘warm season” plants that don’t generally begin growing until soil temperatures warm to
greater than 50” F.
If acceptable erosion controls are in place, the existing seed bank of cool season grasses and
weeds in the soil should be allowed to sprout in the spring. Erosion prone areas should be
seeded with a temporary cover of annual rye grass. The site should be sprayed with a glyphosate
herbicide in spring after weedy plants begin to grow but before they flower and go to seed.
Another herbicide treatment should be conducted in June, just prior to planting the prairie.
Existing “old field” sites that include many weedy species, may need to be treated for an entire
growing season prior to prairie planting.
When adequate weed control is accomplished, the site may then be planted. Seeding in late
spring or early summer typically produces good results. Planting later than mid-July is
discouraged because there may not be enough time left in the season for prairie plants to
adequately establish before winter. However, prairies may be seeded in late fall after soil
temperatures cool - typically in November. These seeds remain dormant over the winter and
sprout the following spring. This fall “dormant seeding” is a good option for weedy sites that
require additional herbicide applications throughout the summer.
Prairie seed mixes are available from several nurseries in the area. Specific wildflower and
prairie grass mixes are formulated to match soil textures and moisture content. A mesic, or
medium-moisture prairie mix is suggested for most of the prairie planting area. Mixes
containing sedges, bulrushes, and other plants tolerant of wet soils should be used in areas
subject to water inundation. Seed mix specifications can be found below. The standard seeding
density is 10 pounds of mix per acre. A nurse crop of such as annual rye grass (do not use
perennial rye) should be planted with prairie seeds to provide temporary competition for weeds,
as well as to stabilize the area against erosion while prairie plants become established. Annual
rye should be planted with prairie seed at a rate of 5 Ibs./acre for spring planting and 15 Ibs./acre
for fall dormant seeding. Steep slopes sloped sites should be seeded more heavily (up to 30 Ibs
annual ryelacre) to inhibit erosion.
Planting sites should be shallowly tilled prior to seeding or planted with a “no till” technique.
No till planting is favored because in doesn’t bring up weed seeds that exist deeper within the
soil, some of which can remain viable for decades. No till planting will minimize the re-
establishment of these weeds. Smaller sites can be broadcast seeded by hand over shallowly
evenly spread the prairie seed. After broadcasting, the soil should be lightly raked so that seeds
tilled soil. Mixing the seed with an inert carrier such as vermiculite or sawdust will help to more
a
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Rosewood Estates Addition 1 men Suace Management Plan
are buried no deeper than % to !h inch. The site should then be rolled so that there is firm seed-
to-soil contact. A light covering of weed-free straw mulch will help retain soil moisture and
increase germination.
Inevitably, some weeds will begin growing on even well prepared sites. Weeds tend to grow
faster than prairie plants, so mowing at successively greater heights through the first year will
reduce the weed’s competitive advantage. Mowing will also keep most weeds from producing
seed. A mowing is also recommended in the spring of the second year, but after that, little
maintenance is required.
Maintenance
Periodic burning in mid-spring will rejuvenate prairie plantings after establishment. This should
be done on a two to five year cycle. Burning removes the duff (dead plant material) and sets
back cool season grasses and weeds. Although not as effective as burning, mowing is an
acceptable substitute where burning may be a hazard. If this method is used, cut plant material
should be raked from the site to allow sun penetration to the soil surface.
In the initial years, prairie plants invest more into root growth and aren’t very showy above
ground. Many wildflowers do not blossom until their third year of growth and it may take five
years before these plants really begin to fill in the site. Patience is rewarded after establishment
by an attractive diversity of plants that both humans and wildlife will enjoy. A greater diversity
of songbirds and many rare and colorful butterflies will utilize the colorful array of wildflowers
found in the prairie.
IO
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Rosewood Estates Addition 1 hen Space Manaaement Plan
0
Speclfications for Mesic Prairie Seed Mix
Wildflowers
15 or more of the following:
Bergamot
Black Eyed Susan
Blue False Indigo
Butterflyweed
Canada Milk Vetch
Canada Tick Trefoil
Compassplant
Culver's Root
Cupplant
Great Solomon's Seal
Heartleaf Golden Alexanders
Lanceleaf Coreopsis
Lavender Hyssop
Meadow Blazingstar
Meadow Rose
New England Aster
New Jersey Tea
Nodding Pink Onion
Ox Eye Sunflower
Grasses
2 or more of the following:
Big Bluestem
Canada Wild Rye
Sideoats Grama
Switchgrass
Pale Purple Coneflower
Partridge Pea
Prairie Blazingstar
Prairie Dock
Purple Coneflower
Purple Prairie Clover
Rattlesnake Master
Rosinweed
Roundhead Bushclover
Sky Blue Aster
Smooth Aster
Smooth Penstemon
Stiff Goldenrod
Sweet Black Eyed Susan
White False Indigo
Wild Quinine
Wild Senna
Yellow Coneflower
Indiangrass
Little Bluestem
Prairie Dropseed
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Rosewood Estates Addition 1 Ouen Space Mana!mnent Plan
We1 Meadow/Sedge Seed Mix Specijcations for Storm water Pond and Swale Area *
Wildflowers
15 or more of the following:
Angelica
Bergamot
Black Eyed Susan
Blue Flag Iris
Blue Vervian
Boneset
Brown Eyed Susan
Culver's Root
Dense Blazingstar
Golden Alexanders
Great Blue Lobelia
Green Headed Coneflower
Ironweed
Joe Pye Weed
New England Aster
Ohio Goldenrod
Ox Eye Sunflower
Pale Indian Plantain
Prairie Blazingstar
Prairie Dock
Red Milkweed
Riddell's Goldenrod
Sawtooth Sunflower
Sweet Black Eyed Susan
Tall Coreopsis
Wild Iris
Grasses & Sedaes
4 or more of the following: Fox Sedge
Big Bluestem Porcupine Sedge
Canada Wild Rye Virginia Wild Rye
Fowl Manna Grass
*Note: Mesic Prairie Mix above could be used with addition of any 2 of the following:
Dark Green Bulrush
Fowl Manna Grass
Fox Sedge
Porcupine Sedge
Dark Green Bulrush
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Rosewood Estates Addition 1 Ouen Space Management Plan
SECTION 111: INITIAL. DUTIES AND RESPONSIBILITIES OF THE SUBDIVIDER
The Subdivider shall at his expense:
1. Conduct a cut stem herbicide treatment of Buckthorn and Honeysuckle as described
in Section 11 within the delineated wetland area.
2. Maintain erosion control measures in compliance with the Wisconsin Construction
Site Handbook of best management practices and Chapter 29 of the City of Muskego
Municipal Code.
3. Maintain storm water ponds in compliance with Chapter 34 of the City of Muskego
Municipal Code.
4. Inform buyers of parcels 20 through 28 inclusive that it is their responsibility to
schedule and hold a pre-construction meeting with the City of Muskego Conservation
Coordinator prior to any land disturbance or clearing of vegetation. The purpose of
this meeting will be to discuss strategies to minimize the negative impacts wetlands
which lie upon and/or adjacent to their lots and provide information on tree
preservation.
5. Conform to ConservancyMretland Restrictions as described on the Rosewood Estates
Final Plat and included in Section I1 of this document.
SECTION IV: DUTIES AND RESPONSIBILITIES OF THE HOMEOWNERS
I. Homeowners who purchase parcels 20 through 28 inclusive shall individually hold a pre-
construction meeting with the City of Muskego Conservation Coordinator prior to any
land disturbance or clearing of vegetation. The purpose of this meeting will be to discuss
strategies to minimize the negative impacts wetlands which lie upon and/or adjacent to
their lots and provide information on tree preservation.
2. Conform to ConservancyflNetland Restrictions as described on the Rosewood Estates
Final Plat and included in Section 11 of this document.
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Rosewood Estates Addition 1 @en Space Management Plan
(b SECTION V: DUTIES AND RESPONSIBILITIES OF THE CITY OF MUSKEG0
The City shall:
1. Inspect delineated wetland area to ensure that control of buckthorn and honeysuckle has
been achieved. Control shall be considered achieved if less than 10% of cut stems show
resprouting.
2. Inform homeowners of wetland boundaries that lie within or adjacent to their properties.
3. Inspect wetland areas annually to ensure that no illegal filling, dredging, or other
4. Provide homeowners technical assistance on invasive species control.
modifications have occurred.
14