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1b. Minger Addition Final Platr] CITY OF 16 CHANHASSEN 690 COULTER DRIVE • P.O. BOX 147 • CHANHASSEN, MINNESOTA 55317 (612) 937 -1900 • FAX (612) 937 -5739 TO: Don Ashworth, City Manager FROM: Bob Generous, Planner H DATE: August 3, 1994 SUBJ: Minger Addition Final Plat, #93 -25 Subdivision BACKGROUND At the August 25, 1994 City Council meeting, for the Minger Addition to permit the applicar final plat approval. The City Council could ni A2, Agricultural Estate, to RSF, Single Family members required for an ordinance revision. approve the final plat for the development whi property. Actfots 6y Cky Aftm tndorsec IModifieJ _ Wecte Wt . S We submitted to commissim Date Submitted to COM4 ,y_ y Council approved a development contract begin the site grading in anticipation of the )prove the rezoning of the property from sidential, due to a lack of 4 council >equently, the City Council could not was contingent on the rezoning of the At the June 13, 1994 meeting, the City Council approved the requests for 93 -25 Subdivision and 94 -1 Rezoning providing for the preliminary plat on 9.46 acres of land to create 17 single family lots, rezoning of the property from Agricultural Estate District, A2, to Single - Family Residential, RSF and a front yard setback variance of ten (10) feet to permit a front yard setback of 20 feet throughout the development subject to the following conditions: 1. Accept full park ' Minger subdivisi L l * This city ordinance for the 2. Provide a 20 ft. trail easement to the west of Lot 17 for connection to the city park and construct an 8 ft. wide asphalt trail stub within this easement. The city shall reimburse the developer for this construction. In addition, design an adequate landscape buffer between this easement and the home which will be constructed on Lot 17. * This was modified in the development contract for the grading of the property and should be revised as follows: "Warranty deed Outlot A to the city as a 1 n Don Ashworth August 3, 1994 Minger Addition Final Plat Page 2 trail connection to the city park and construct an 8 ft. wide asphalt trail stub within Outlot A. The city shall reimburse the developer for this construction. In addition, design an adequate landscape buffer between Outlot A and the home which will be constructed on Lot 17." 3. Prior to final platting, the applicant will be required to provide a boulevard landscaping plan for the first 300 feet of the entrance road into the development in order to replace the existing vegetation that will be removed as part of the road and utility grading into the site. A Woodland Management Plan shall be developed for the subdivision prior to the final platting of the property. This plan shall comply with section 18 -61 (d) (3) of the City Code. * This condition has been partially met and should be modified as follows: "A copy of the Woodland Management Plan shall be provided to every lot purchaser. The Woodland Management Plan shall be complied with in the development of the site and the individual lots." 4. Incorporate a fifty (50) foot tree conservation area be dedicated along the perimeter of the plat, except for Lot 7 where a thirty (30) foot easement will be required and Lot 8 along the easterly property line where a forty (40) foot easement will be required. Within this area only selective thinning to promote the health and survivability of trees will be permitted or such other clearing or preventative care measures as delineated in the woodland management plan. Additionally, this area, especially along the northern border of the plat could be used as a forestation or replacement area for trees. Thinning, forestation, and tree replacement are conditioned on the development of a Woodland Management Plan by a forestry professional that would address these issues. The following tree conservation easements would also be dedicated as part of the plat: a fifty (50) foot easement along the rear lot lines of Lots 10, 11, and 15: a forty (40) foot easement along the easterly property line of Lot 14; an easement over the southern 115 feet of Lot 13; and an eighty (80) foot easement along the east lot line of Lot 16. No construction activity of any kind will be permitted within these easements except the drainage tile installation in the rear yards of Lots 10 and 11, the removal of the existing driveway in Lots 1, 2, and 3, and the placement of small sheds, storage structures, or play equipment under guidelines incorporated in the Woodland Management Plan. The applicant shall work with staff on the adjustment of easements and house pads on individual lots to save additional trees. * This condition has been met. The applicant shall include runoff from the cemetery in the proposed pond design and construction. Don Ashworth August 3, 1994 Minger Addition Final Plat Page 3 A 7. * This condition has been met. Remove the applicant's existing private driveway once the street is paved with the first lift of asphalt. This condition still applies. Provide water quantity /quality ponding according to SWMP requirements. This condition still applies. The applicant shall employ the use of retaining walls to save the 34 -inch oak and 28- inch oak on Lot 1, Block 1. * This condition still applies. 9. Submit proposed street names to the Public Safety Department, Inspections Division, for review prior to final plat approval. The plat must be revised to include the approved names after their review and approval. The existing homes will be required to change their addresses consistent with the new street names and numbering system This condition has been partially met and should be modified as follows: "The existing homes will be required to change their addresses consistent with the new street names and numbering system." 10. Compliance with the terms and conditions contained in the memorandum from Bill Weckman, Assistant Carver County Engineer to Robert Generous, Planner II, dated 4/25/94. * This condition is still applicable. 11. Detailed construction drawings and specifications for the public improvements will be required for submittal with final plat approval. All street and utility construction shall be in accordance to the City's latest edition of standard specifications and detail plates. Final construction drawings are subject to staff review and formal City Council approval. * This condition has been met. Don Ashworth August 3, 1994 ' Minger Addition Final Plat Page 4 ' 12. Prior to the city signing the final plat, the applicant will be required to enter into a development contract with the City and provide the necessary financial security to guarantee installation of the public improvements and conditions of approval. ' * This condition is still applicable. ' 13. The Minger's house shall be connected to sanitary sewer within 30 days after the line becomes operational. The Dempsey's house will have to connect to sanitary sewer within 12 months after connection becomes available. The homes may utilize their existing wells until they fail, then the parcels must connect to city water. The existing septic systems shall be abandoned per state and/or local codes. ' * This condition is still applicable. 14. The applicant shall apply and obtain all the necessary permits of the regulatory ' agencies such as MPCA, health department, watershed district, DNR and Carver County Highway Department. I * This condition is still applicable. 15. The developer shall report to the City Engineer the location of any drain tiles found ' during construction. ' * This condition is still applicable. 16. The applicant shall submit storm drainage and ponding calculations verifying the pipe ' sizing and pond volumes. Storm sewers shall be designed and constructed to handle 10 -year storm events. Detention ponds shall be constructed to NURP standards as well as maintain the surface water discharge rate from the subdivision at the 1 predeveloped runoff rate for a 100 -year, 24 -hour storm event. Drainage plans shall be consistent with the City of Chanhassen's Best Management Practices Handbook. ' * This condition is still applicable. 17. A 10 foot clear space must be maintained around fire hydrants so as to avoid injury to ' fire fighters and to be easily recognizable, i.e. NSP transformers, street lighting, cable boxes, landscaping. ' * This condition is still applicable. t Don Ashworth August 3, 1994 Minger Addition Final Plat ' Page 5 18. The developer and/or property owners shall waive any and all procedural or , substantive objections to the special assessments including, but not limited to, hearing requirements and any claims that the assessment exceeds the benefit to the property. * This condition is still applicable. 19. Depending on the storm ponding calculations, if the development is not meeting the ' City SWMP for water quantity, then the applicant will be required to contribute into the City's SWMP program. The proposed rate per acre for single family is $1,980 /acre excluding wetlands. ' * This condition is applicable with the following modifications: " The applicant shall provide the City with security for the stormwater quantity fees in the amount of $18,731.00. The applicant will be required to escrow with the City by letter of credit or cash escrow the water quantity fees until such time as the City Council formally adopts the Surface Water Management Plan. If the , amount of the assessment changes, the applicant's account would be changed accordingly. Upon approval of the Surface Water Management Plan, these fees shall become due." , 20. Applicant shall shift the westerly cul -de -sac ten to fifteen feet east at the intersection to move the roadway away from the existing house. I * This condition has been met. ' 21. The westerly cul -de -sac will be built to city standards with the future development of the abutting property to the west. All expenses related to the future construction of ' the westerly cul -de -sac shall be borne by the development on the west side of the cul- de -sac. This condition is still applicable, however, it should be modified as follows to t more specifically address the city's concerns: "The most westerly cul -de -sac adjacent to the Dempsey property will be a temporary private street until the ' Dempsey property develops further. At that time, Benwood Circle shall be improved with a 31 -foot wide urban city street section and storm sewer improvements as shown on the approved construction plans for Minger Addition dated June 5, 1994, revised July 25, 1994. The streets and storm sewer improvements shall be installed at the sole expense of whomever develops the Dempsey property." 1 r Don Ashworth August 3, 1994 Minger Addition Final Plat ' Page 6 FINAL PLAT ' The applicant has submitted detailed construction plans and specifications for staff review and PP P P� ' City Council approval as part of the development contract which was approved on July 25, 1994. Staff reviewed the construction plans and specifications and found them in general conformance with the City standards. ' The proposed subdivision creates 17 lots and 2 oudots. The average lot size is 19,842 square feet or approximately 0.45 acres. Lot sizes range from 15,000 square feet to 37,480 square ' feet in area. All of the lots comply with the minimum requirements for a single - family subdivision in the RSF zoning district. Oudot A is proposed for dedication to the City for public trail purposes to connect to the park site located south of the development. Outlot B ' provides a buffer strip for the existing home located outside the plat to the southeast (the Dempsey property). ' The applicant has prepared a Woodland Management Plan that provides guidelines for the protection of trees as part of the development process and post development care. The applicant is dedicated 3.08 of land as part of the tree conservation area. City code requires a minimum of 55 percent post development canopy coverage for this development. This amounts to 5.2 acres of canopy coverage. The applicant estimates that they will maintain a minimum of 56 percent canopy coverage. Through the use of the Woodland Management ' Plan, additional canopy coverage will be able to be saved. RECOMMENDATION Staff recommends that the City Council approve the requests for 93 -25 Subdivision and 94 -1 Rezoning (second and final reading) providing for the final plat on 9.46 acres of land to ' create 17 single family lots and 2 Outlots, rezoning of the property from Agricultural Estate District, A2, to Single - Family Residential, RSF and a front yard setback variance of ten (10) ' feet to permit a front yard setback of 20 feet throughout the development as shown on the final plat dated June 28, 1994 and subject to the following conditions (conditions in bold were added as part of the development contract permitting the initial site grading): 1. Accept full park and trail dedication fees as prescribed by city ordinance for the Minger subdivision in lieu of land acquisition. ' 2. Warranty deed Outlot A to the city as a trail connection to the city park and construct an 8 ft. wide asphalt trail stub within Outlot A. The city shall reimburse the developer ' for this construction. In addition, design an adequate landscape buffer between Outlot A and the home which will be constructed on Lot 17. Don Ashworth August 3, 1994 Minger Addition Final Plat Page 7 3. A copy of the Woodland Management Plan shall be provided to every lot purchaser. ' The Woodland Management Plan shall be complied with in the development of the site and the individual lots. 4. Remove the applicant's existing private driveway once the street is paved with the first ' lift of asphalt. 5. Provide water quantity/quality ponding according to SWOP requirements. ' 6. The applicant shall employ the use of retaining walls to save the 34 -inch oak and 28- , inch oak on Lot 1, Block 1. 7. The existing homes will be required to change their addresses consistent with the new I street names and numbering system. 8. Compliance with the terms and conditions contained in the memorandum from Bill , Weckman, Assistant Carver County Engineer to Robert Generous, Planner II, dated 4/25/94. 9. Prior to the city signing si nin the final plat, the applicant will be required to enter into a development contract with the City and provide the necessary financial security to guarantee installation of the public improvements and conditions of approval. 10. The Minger's house shall be connected to sanitary sewer within 30 days after the line becomes operational. The Dempsey's house will have to connect to sanitary sewer ' within 12 months after connection becomes available. The homes may utilize their existing wells until they fail, then the parcels must connect to city water. The existing , septic systems shall be abandoned per state and/or local codes. 11. The applicant shall apply and obtain all the necessary permits of the regulatory , agencies such as MPCA, health department, watershed district, DNR and Carver County Highway Department. 12. The developer shall report to the City Engineer the location of any drain tiles found ' during construction. 13. The applicant shall submit storm drainage and ponding calculations verifying the pipe r sizing and pond volumes. Storm sewers shall be designed and constructed to handle 10 -year storm events. Detention ponds shall be constructed to NURP standards as , well as maintain the surface water discharge rate from the subdivision at the Don Ashworth August 3, 1994 ' Minger Addition Final Plat Page 8 predeveloped runoff rate for a 100 -year, 24 -hour storm event. Drainage plans shall be consistent with the City of Chanhassen's Best Management Practices Handbook. 14. A 10 foot clear space must be maintained around fire hydrants so as to avoid injury to fire fighters and to be easily recognizable, i.e. NSP transformers, street lighting, cable boxes, landscaping. ' 15. The developer and/or property owners shall waive any and all procedural or substantive objections to the special assessments including, but not limited to, hearing requirements and any claims that the assessment exceeds the benefit to the property. 16. The applicant shall provide the City with security for the stormwater quantity fees in ' the amount of $18,731.00. The applicant will be required to escrow with the City by letter of credit or cash escrow the water quantity fees until such time as the City Council formally adopts the Surface Water Management Plan. If the amount of the ' assessment changes, the applicant's account would be changed accordingly. Upon approval of the Surface Water Management Plan, these fees shall become due. 17. The most westerly cul -de -sac adjacent to the Dempsey Property will be a temporary private street until the Dempsey property develops further. At that time, Benwood ' Circle shall be improved with a 31 -foot wide urban city street section and storm sewer improvements as shown on the approved construction plans for Minger Addition dated June 5, 1994, revised July 25, 1994. The streets and storm sewer improvements shall ' be installed at the sole expense of whomever develops the Dempsey property. 18. Final plat shall include a 10 -foot wide drainage and utility easement along the ' south, east and north property lines. The plat currently proposes a 5 -foot wide easement only. ' 19. Property owners of Lots 14, 15 16 and 17, Block 1, Minger Addition, shall be responsible for the maintenance of Benwood Circle including but not limited to snow plowing until Benwood Circle is fully upgraded to an urban city street. A ' sign shall be installed at the beginning of the driveway indicating that this is a private driveway and will be upgraded in the future. r _� 20. The applicant shall provide a drainage and utility easement for the stormwater pond proposed on the Dempsey parcel and a drainage and utility easement a minimum of 20 -feet wide over the Schmidt parcel directly south of the stormwater retention pond prior to the final plat being recorded. Don Ashworth August 3, 1994 Minger Addition Final Plat Page 9 21. Upon completion, the developer shall dedicate to the City, the utility and street improvements constructed with the public right -of -way and drainage and utility easements for permanent ownership. Attachments 1. Woodland Management Plan 2. Memorandum From Bill Weckman to Robert Generous dated 4/25/94 3. Memorandum from Dave Hempel to Charles Folch dated 7/15/94 4. Minger Addition Final Plat dated June 28, 1994 J 1 WOODLAND PRESERVATION AND MANAGEMENT PLAN P repared for: Ringer Construction 8221 Galpin Boulevard Chanhassen MN 55317 F, ` I r] _ J P re p ared by: David Swanson Se nior Horticulturist S & S Tree Specialists, Inc. 6214 East Concord Boulevard Inver Grove Heights MN 55076 451 -8907 l� Trees can be damaged or killed by a wide variety of construction activities. Some practices lead to obvious injuries such as ' broken branches or torn bark. Open wounds of this type deplete a plant's energy resources and provide entry points for insects, or for diseases such as oak wilt. The worst damage, however, often remains hidden underground. Roots are one of the most vital parts of a tree. They are responsible for nutrient and water uptake, store energy, and ' anchor the plant. Because they are so .important, it is critical that you protect roots that lie in the path of construction. Trees are never the same shape below ground as they are above, so ' it is difficult to predict the length or location of their roots. However, we know that approximately 99 percent of a tree's root system is in the top three feet of soil, and more than half is in ' the top one foot. The part of this root system in which construction damage should be avoided is called the Protected Root Zone (PRZ). ' One common method used to identify the PRZ is to define it as the ,, dripline l l - the area directly below the branches of the tree. However, many roots extend beyond the longest branches a distance , equal to two or more times the height of the tree. For this reason you should protect as much of the area beyond the dripline as possible. Unfortunately, on most sites space is limited and this rule must be bent. Just how close an activity can come without seriously ' threatening the survival of a tree depends upon the species, the extent of damage, and the plant's health. Some healthy trees can survive after losing 50 percent of their roots. However, other species are extremely sensitive to root cutting, even outside the dripline. When dealing with trees that have been growing in the forest or ' that naturally have a narrow growth habit, an approach called the "critical root radius" is more accurate than the dripline method for determining the PRZ. This is particularly true for columnar ' trees and for those where competition has reduce the canopy spread. To calculate critical root radius, estimate the tree's height and multiply by 40 percent (0.40). The result is the ' approximate distance from the tree trunk in which a critical amount of the tree's roots may be found. Whenever possible, isolate this area from construction disturbance and treat it as the PRZ. i PRIOR TO CONSTRUCTION It is the desire of Minger Construction, as the land developer, to comply with all existing city ordinances and codes pertaining to tree preservation. Also it is their desire to be good stewards of the environment by replacing what must be removed, and to establish a neighborhood that will be aesthetically pleasing to it's residents and surrounding developments. 1. Mark the construction zone boundaries. obtain a complete set of site development plants, including the proposed location of buildings, driveways, sidewalks, and utility lines. Mark areas where heavy equipment will be used, where soil will be permanently added or removed and to what depth, and where ' fill and building materials will be temporarily stockpiled. Mark the boundaries of construction activities on the site. 2. .inventory trees on the site. ' Record the location, size, and health of each tree. wilted leaves, broken or dead limbs, trunk rot, and thin tops are all ' signs of stress. Trees that display poor form, lean heavily over future buildings, or have severe insect or disease problems should be marked for removal prior to construction. Also mark trees that need pruning to make room for future structures and ' construction equipment. The tree inventory and survey are enclosed on separate pages. 3. Protect the trees you plan to save. Develop a map showing the location of trees to be protected and the safest route for access to the building zone. Then install bright orange polypropylene fencing and post , off Limits" signs at the PRZ of the trees you plan to save. The primary objective is to protect delicate root systems, so provide trees with as much space as possible. Make sure all construction workers know that nothing inside this area is to be raked, cut, stored, or otherwise disturbed. The designated woodland areas and conservation easements are designated on the plat plan. 4. Prepare the trees for construction disturbance. Fertilize trees if soil test of deficiency symptoms indicate they are nutrient stressed. Prune branches that are dead, diseased, ' hazardous, detrimental to the plant's natural form, or in the way of rooflines. I DURING CONSTRUCTION 1. Soil damage. I Soil compaction is the single largest killer of urban trees. Tree roots need loose soil to grow, obtain oxygen, and absorb water and nutrients. Stockpiled building materials, heavy machinery, and excessive foot traffic all damage soil structure. ' Lacking good soil aeration, roots suffocate and tree health declines. Prevent soil compaction by carefully selecting storage areas and traffic routes (the future driveway is a good choice for both) and installing protective fences and signs. If you can't reroute traffic, install root system bridges or spread several inches of ' wood chips on the soil within the PRZ. Heavy mixing trucks can be kept off tree roots by transporting concrete from the truck through conveyor pipes. Improper handling or disposal of materials used during ' construction also can harm roots. For example, wood products treated with pentachlorophenol and creosote can be deadly to tree ' roots; CCA- treated timber (greenish color) is a better alternative. All building debris and chemical wastes should be hauled away for proper disposal, and not burned or buried on the , site. 2. Grade changes. ' Moving large amounts of soil within the PRZ usually kills a tree. Except where absolutely necessary, avoid disruptions to the natural contour of the site or shift them will outside the PRZ. ' Soil additions compact the soil around a tree and often raise the water table. ' Deeper fills require more expensive measure. A retaining wall beyond the PRZ may protect some trees. These walls preserve much of the original root system and redirect excess water away from ' sensitive plants. Cutting soil away from a tree removes vital feeder roots, eliminates nutrient -rich topsoil, and often lowers the water table. Damage caused by shallow cuts (less than two Inches) at least three feet away from the base of the tree may be , minimal, but still can be a shock to a tree's vigor. if possible, avoid making the cuts during hot, dry weather. A shallow later of mulch (pine needles, wood chips, or coarsely ' chopped twigs and bark) and clean root cuts will help wound closure and regrowth. Deeper cuts within the root zone will require the construction of a retaining wall. In specific ' locations where cut or fill will significantly impact a tree, or 11 trees, to be preserved, approved grading and sloping, with field inspection and verification will ; be employed. In locations where grade and slope are not appropriate or approved, retaining walls will be constructed to the height or depth of the out or fill. To preserve extremely valuable "specimen" tree's), where grade cut or fill will significantly impact the condition of the tree(s), the use of retaining walls will be employed. The design, placement, and construction of these walls shall be performed and supervised by a certified landscape architect. 3. Excavation Much of a tree's root system could be cut during the installation of a nearby utility line. This reduces water and nutrient uptake, and may compromise the stability of the tree. If it is not possible to relocate the utility line outside the tree's PRZ, you can reduce root damage by tunneling under the tree's root system. When digging a trench near a tree, begin tunneling when you encounter roots larger than one inch in diameter. For all digging operations, exposed roots should be out cleanly to promote quick wound closure and regeneration. Vibratory plows, chain trenchers, and hand tools do a better job at this than bulldozers and backhoes. Minimize damage by avoiding excavation during hot, dry weather and covering exposed roots with soil, mulch, or damp burlap as soon as possible. POS2' CONSTRUCTION TREATMENT OF DAMAGED PLANTS When trees are injured by construction activities, energy and resources normally used for growth must be redirected towards the process of wound closure and regrowth. During this critical period plants are particularly vulnerable to additional stress, especially insects, diseases, and sever weather. These problems can be minimized by quickly treating the damage. 1. Water Construction activities often alter the amounts of water received by trees. Thoroughly water plants before and immediately after they receive any kind of direct damage (e.g., severed roots). Continue periodic watering (four or five times per summer) throughout the next growing season. Be careful not to over water trees. A one -inch depth of water applied throughout the PRZ is a good rule of thumb. A tim can or glass jar can be used to measure the amount of water applied if an overhead irrigation system is used. Concentrate most of the water on undamaged sections of the root system. 4 Two to three inches of mulch (wood chips or bark) spread over as much of the root system as practical will help the tree to retain water and stimulate root regeneration. Living ground covers over ' the root system will have a similar effect, and may be more aesthetic. Apply these techniques to any deciduous tree exhibiting wilted leaves or any coniferous tree dropping excessive amounts of needles from the inner branches. , Drainage systems and grade changes may cause some trees to receive too much water. Species differ in the amount of water ' they can tolerate. Intolerant plants will exhibit twig and branch death. Don't wait for these symptoms to appear. If you suspect your plant is receiving too much water, contact a tree- ' care specialist for an evaluation of the problem. Treatment differs by tree species and by the amount of time the water remains on or close to the surface. For some species, a retaining wall or culvert may be needed to redirect the flow of , water. 2. Excavation of back-filled-trees I If excessive soil additions have been made around valuable trees, efforts should be made to restore the original grade, at least , within the PRZ. Approach this grade restoration carefully. Determine how much fill has been added by sampling depths at several different , points within the PRZ. If the depth is great (more than 12 inches), you may remove most of the backfill with mechanical equipment. Once you are within I0 to 12 inches of the original ' grade, complete the fill excavation carefully with shovels and rakes. Make certain no soil is piled up against the tree trunk, and aerify the soil within the PRZ to complete the operation. If the tree is already exhibiting advanced symptoms of decline, ' however, restoration to original grade will probably be fruitless. in this case, remove the tree and plant a new one. 3. Aeration ' soil compaction around a tree's roots may cause leaf wilt, early ' fall coloring, top dieback, and slow growth. Reduce compaction by carefully drilling a series of two -inch diameter holes in the soil to a depth of twelve to eighteen inches. Begin three feet ' from the tree trunk and continue drilling at two -foot intervals In concentric rings around the tree out to the PRZ. Each hole may be refilled with sand, peat moss, or mulch. A tree -care specialist may recommend other alternative, including soil ' injections to improve soil aeration. J J H �$. Fertilizer Injured trees may need additional nutrients to replace damaged root systems. Fertilizers containing phosphorous and nitrogen can help stressed plants recover since these nutrients promote root and plant growth Avoid excessive nitrogen; increased stem and foliage growth can cause stress, especially during hot, dry weather of if the tree has been stressed due to construction activities. 5. Pruning and wound repair Careful pruning and wound repair are important treatments for damaged trees. Prune broken or dead branches cleanly at the branch collar. Pruning is commonly recommended for large trees that have suffered root damage. Opinions differ over the merits of this practice. Assuming that the tree has adequate water and is not in severe decline, some experts believe that retaining maximum leaf cover is important for root regeneration and only dead libs should be removed. Others argue that pruning selected live limbs is necessary to compensate for lost roots. Generally, it is best to follow the recommendation of your tree -care specialist. When properly done in moderation by a skilled professional, pruning may reduce wind resistance and limb failure and improve tree health and appearance. DO NOT let anyone cut off all of the top branches to the same height. ( "topping "). The treatment of trunk wounds depends on the extent of damage. If the bark has bee completely removed around the entire trunk, the tree will not survive and should be removed. if only a patch of bark has been removed leaving a few splinters, use a sharp knife to cleanly out off the loose bark to a place on the stem where it is firmly attached.. Do NOT make the wound any larger than necessary. Do not use pruning paint or dressing to cover exposed wounds or pruned Jibs. Except for special cases involving disease control, these products do little more than improve appearance. 6. Tree removal Even the best protection plans cannot guarantee plant survival. Death may occur shortly after construction or years later. Look for trees with very few leaves and many dead branches. If the tree does not leaf out the following year, it is dead. Large trees that lean or exhibit rot, deep trunk cracks, or extensive top dieback are potentially hazardous. They should be evaluated by a tree -care specialist or be removed. Dead trees are excellent for wildlife, .but dangerous to people and buildings. 6 Within the tree conservation easement areas, the existing woodlands should be thinned to eliminate all living or dead undesirable trees, less than 6" in diameter, in locations where ' these trees are encroaching or invading into the canopy of desired species, or a desired tree stand. Additionally, any desired tree less than 6" diameter that is dead or in poor condition, should be- removed. Dead trees, of any species, , greater than 10" diameter may be allowed to stand for potential wildlife habitat. 7. Tgee replacement and forestation Replacement tree species based upon those in the existing, ' natural woodland and those that will blend in well in this environment shall include: oaks, basswood, linden, ash, maple, hackberry, birch, spruce, fir, pine, and arborvitae. Not less than twenty percent of the trees shall be conifers. Size I ' calipers listed ove -�- See enclosed tree planting details for planting method. Sixty percent of the replacement will be within the conservation easements. The remaining 40 percent should be placed on street boulevards, street corners, , and on the private residential lots where there are few, if any, native trees located. Deciduous trees shall average at least 2k inch caliper and may be a minimum of A inch caliper; conifer , trees shall average seven (7) feet and shall be a minimum of six (6) feet in height. 7 a Ll wc,- �NOS� 1 t t .1100 ,-n ow MA- Pa4pwan). OMA j IA " �"i-1 4" *+"Vm:p omw. nvttki VA' MO& Cl^M .� - a� ,3: L j� p� f1.1C+ � �Jt1D roar lt•ri PW n ""W& sr� n+ to -/. Ot , tx T1 t0. s fj iit� I I .. I l� 7 u I� J I PUBLIC WORKS DEPARTMENT 1 (612)361 -1010 FAX (612) 361 -1025 CARVER COUNTY COURTHOUSE 600 EAST 4TH STREET, BOX 6 CHASKA, MINNESOTA 55318 COUNTY OF CAI�VEQ April 25, 1994 ' To: Robert Generous, Planner II From: Bill Weckman, Assistant County Engineer Subject: Rezoning Proposal ' 93 -25 SUB The following are comments regarding the rezoning proposal for the property on Galpin Boulevard south of Timberwood Estates transmitted to Carver County by your memorandum dated April 19, 1994. Right -of -way widths listed in the Eastern Carver County Transportation Study for roadways functionally classified as Minor Arterial (Class II) are: Urban Undivided 2 -lane Roadway Minimum Recommended 100' 110' Rural Undivided 2 -lane Roadway Minimum Recommended 120' 150' Urban Undivided 4 -lane Roadway Minimum Recommended 100' 120' Rural Undivided 4 -lane Roadway Minimum Recommended 140' 170' Galpin Boulevard (County Road 117) was given a County State Aid Highway (CSAH) designation a few yea ago. CSAH 19 is functionally classified as a Minor Arterial (Class II) roadway in the Eastern Carver County Transportation Study. It would appear that as ' a minimum, a 100 foot corridor should be established for a potential 4 lane urban roadway. The proposal would need to meet at least that minimum. The city may wish to consider an even wider highway corridor along the proposed area if a separate trailway is to be constructed along the county highway. Additional width may also be needed to accommodate public utilities and landscaping. ' 2. The proposal includes construction of a new street access. We would assume this will be a City street. Consideration will have to be given for turn lane installation at the ' intersection with Galpin Blvd. An access permit will need to be obtained from Carver County for construction of this access. I 3. Any public utility lines that are to be installed within the CSAH 19 right -of -way are subject to the utility permit requirements of Carver County. Affirmative Action/Equal Opportunity Employer t �Ce1 Printed on Recycled Paper Contains Minimum 10% Post Consumer Waste , 2 1 ^-�. ' 'n right-of-way 4. Any proposed grading and installation of drainage structures within the of CSAH 19 is subject to review and approval of the county highway department. 5. Development activities (including the installation of both public and private utilities needed to serve the development site) that result in any disturbance of the county highway right - of -way (including turf removal, trench settlements, erosion, and sediment deposits) need , to be completed in a manner that leaves the right -of -way in as good or better condition" than what existed prior to construction. It is requested that the city include a provision in the developer's agreement that requires the developer to be ultimately responsible for , the final condition of the county highway right -of -way. A clear understanding of this responsibility will result in fewer project oversight problems for both the county and the city. ' 6. Any trees or landscaping completed within the right -of -way must be approved by the County. When locating proposed shrubs and trees, consideration should be given to , maintaining an acceptable sight distance at the proposed intersection. 7. Reconstruction of this portion of CSAH 19 is scheduled for 1995. A number of the , concerns expressed above can be addressed in the reconstruction project if the project proceeds as planned. Thank you for the opportunity to comment on the proposed rezoning. , C I TY: F -- 690 COULTER DRIVE • P.O. BOX 147 • CHANHASSEN, MINNESOTA 55317 (612) 937 -1900 • FAX (612) 937 -5739 i MEMORANDUM OFFICIAL ENGIf W CWy Aeoehred ' TO: Charles Folch, City Engineer Revision No. .Approved by City Engineer FROM: Dave Hempel, Assistant City Engineer �� J�� We 'x' let —N .)E ' DATE: July 15, 1994 ARProved by City Coundl Date ' SUBJ: Approve Development Contract and Construction Plans and Specifications for Minger Addition Project No. 94 -13 The attached Development Contract incorporates of app roval from the final platting and construction plans and specifications review process. Staff has calculated the required ' financial security to guarantee compliance with the terms of the Development Contract at $307,000 and the Development Contract administration fees total $16,382.50 which includes 1/3 of the required Park and Trail fees.: The applicant has also submitted detailei construction plans and specifications for staff review and City Council approval. Staff has reviewed the construction plans and specifications and finds ' them in general conformance to the City standards. It "" therefore recommended that the construction plans and specifications for Nnger Addition *ed June 5, 1994, revised July 25, 1994 prepared by Ron Krueger & Associates, and the Development Contract dated July 25, 1994 be approved conditioned upon the following: 1. The applicant mater into *l , ; � ,-Peyoq pmpnt Contract with a cash and supply the Cit}► ' escrow of letter of credit in the amount of $307,000 and pay ik fee of $16,382.50. j Attachments: 1. Development Contract W4'A At July 25, 1994. 2. Construction plans. Please leave your copy of the construction a ans in the Council Chambers for staff to collect after the meeting. Specifications ate ' available for review in the Engineering Department. c: Pat & Karen Minger