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HomeMy WebLinkAboutPlanning Brd Min_551993Present: Planners: MINUTES May 5,.1993 Chairman Madan, Acting Annino,'Sullivan Clerk Flynn Richard Lewis, Environmental and Conservation Agent 1. 7:00 P.M. - Land Use Study Workshop Both Consultants, Mark Bobrowski and Rick Taintor, were present during the workshop. The workshop began with Rick Taintor presenting a report of "Implications of Existing Zoning and Potential Development ". A copy of Pir. Taintor's report is attached. Mr. Taintor's presentation was broken down into five sections: A. Potential Loss of Open Space B. Relationship of Route 140 Extension to Zoning and Build -Out C. Consistency with 1988 Master Plan Goals D. Consistency with 1989 Open Space and Recreation Plan Goals and Objectives E. Industrial Park vs. Commercial Strip - School Street Board /Public Comment: Planner Flynn asked what effect the extension of Route 140 would have on zoning in the area. Leonard Flynn of the Natural Resources Trust commented on the extension of Route 140 and wetlands and soils maps. Karl Clemmey commented on land within the study area owned by the Commonwealth of Massachusetts. Attorney Mark Bobrowski presented several recommended amendments to Section 4.8 Waterbody Setback and Wetlands Protection of the Zoning By -Law. A copy of Attorney Bobrowski's report is attached. Following Attorney Bobrowski's presentation, his suggested amendments were discussed by the Planning Board and the public. During discussions it was suggested that the Board of Appeals not be the Special Permit granting authority as stated in proposed Section 4.8A.4 Uses Permitted by Special Permit because the Zoning Board usually does not deal with this type of information and is not as familiar with it as another Board may be. Planner Flynn stated that it would be helpful if the Board members could receive the consultants 'reports two or three days in advance of the workshop in order to have a better understand- ing of the reports and allow for the Board to be more involved in the'discussions. Planner Sullivan stated that proposed Section 4.8.3 "Plan" should reference that the plan shall be stamped by a Registered Professional - Engineer. Attorney Bobrowski stated that he would like to discuss who should be the Special Permit granting authority at a future meeting. Attorney Bobrowski also stated that he would like the Planning Board to hold a joint meeting with the Zoning Board to discuss use variances, non - conforming uses, and special permits. Karl Clemmey stated that the consultants should look at the soils /land in the study area. At the conclusion of the consultants discussed addi purpose of the meeting amendments to Section 4.8 variances, non - conforming Zoning Board of Appeals. workshop, the Planning Board and the ng an additional workshop meeting. The would be to discuss the proposed at a greater length and discuss use uses, and special permits with the The additional meeting will be held on May 26, 1993 at 7:00 P.M., and the Board of Appeals will be invited to the meeting at 8:30 P.M. 2. Correspondence MOTION: Planner Flynn to be Acting Clerk. (Annino - Sullivan) All in favor. PASSES. Chairman Madan stated that since the Annual Town Meeting is over he would accept nominations for Chairman. Planner Flynn suggested that reorganization be put off until the full Board is present. MOTION: To delay reorganization until the full Board is present. (Flynn - Sullivan) All in favor. PASSES. Memo from Daniel B. Clifford, Subdivision Inspector, to Shaun Burke, Director of Planning and Development, recommending that $27,509 be released for the Katherine Court subdivision MOTION: To release the.above amount. (Annino - Sullivan) All in favor. PASSES. Memo from Bert Cook, Inspector of Buildings /Zoning Enforcement Officer, with attached letter from Elizabeth Clemmey requesting a surplus removal permit Following a discussion of the request the following action was taken: MOTION: To send a positive recommendation to the Building Inspector provided the material is :surplus.. (Sullivan- Flynn) All in favor. PASSES. Letter from The Bonwood Company, Inc. to Shaun Burke, Director of Planning and Development, requesting a permit to remove excess fill in the Massapoag Estates subdivision MOTION: To table until we hear from Mr. Clifford as to whether the material is excess or if an earth removal permit is required. (Flynn- Sullivan) All in favor. PASSES. MOTION: To send a letter to the Building Inspector regarding water pressure in Massapoag Estates and how it relates to the Building Code. (Annino- Flynn) All in Favor. PASSES. Letter from the Commonwealth of Massachusetts regarding Mill Farm Estates Memo to Shaun Burke, Director of Planning and Development, from Dan Clifford, Subdivision Inspector, regarding Van Gemert Estates and Trowbridge Woods Petition to the Board of Selectmen to abandon Old Maple Street from residents of the area Memo to William Madan, Chairman, Planning Board, from Shaun Burke, Director of Planning and Development, regarding Article 39 of the Annual Town Meeting warrant 3. Public Discussion Karl Clemmey requested that the Planning Board present their recommendations to Town Meeting in a less confusing manner. 4. Adjournment - 9:30 P.M. ClevI's Signature Date of Approval r , MARK BOBROWSKI ATTORNEY AT LAW 17 COCASSET STREET FOXBOROUGH. MA 02035 -(508) 543 -0408 May 5, 1993 TO: MANSFIELD PLANNING BOARD FR: MARK BOBROWSKI RE: SUGGESTED REVISIONS / SECTION 4.8 On April 23rd, the chairman, town planning staff, and the consultants met to discuss revisions to the soil based zoning provisions which affect the Great Woods Study Area. We also outlined a few other zoning changes deemed important in light of my memorandum of April 7, 1993. Please consider the following alternative to your existing Section 4.8, governing "Waterbody Setback and Wetlands Protection." The purpose of the article is twofold. First, the simpler waterbody setback regulation is separated from the more complex wetland provision. Second, areas of poorly drained soils which do not contain vegetative wetland areas are provided with a special permit mechanism to proceed with development. ARTICLE TO SEE IF THE TOWN WILL VOTE TO AMEND SECTION 4.8, WATERBODY SETBACK AND WETLANDS PROTECTION," BY MAKING THE FOLLOWING CHANGES THERETO: Item 1. Delete Section 4.8 in its entirety and substitute the following therefor: 4.8 Waterbody Protection 4:8.1 Purpose. This section is intended to protect and preserve the areas along existing rivers, streams, ponds, and lakes from adverse development; to protect the community against costs which may be incurred by the detrimental or unsuitable use of the areas along existing rivers, streams, ponds, and lakes; to protect persons and property against the hazards of flood water inundation by assuring the continuation of the natural flow patterns of wetlands and waterbodies; and, to conserve natural conditions, wildlife, open space, and the amenities of the town. 4.8.2 Applicability. a. Along the Wading River, Canoe River, Rumford River (south of Spring Street to the Norton town line), and Hodges Brook (south of School Street to the Norton town line), construction of primary use buildings shall not be permitted within 100 feet of said waterbody, as measured by the high water line. b. Along all other brooks and streams, and around all lakes and ponds, construction of primary use buildings shall not be permitted within a distance to said waterbody which is equivalent to the minimum rear yard setback of any district, or twenty (20) feet, whichever is greater, as measured by the high water line. 4.8.3 Plan. On any lot containing a protected waterbody, or adjacent to a protected waterbody, the Building Inspector shall require an applicant for a building permit to submit a plan showing the boundaries of the lot, the location of the proposed structure, the exact limits of the waterbody or waterbodies, and the necessary computations to show that development will conform to the requirements herein. 4.8.4 Lot Size. Any lot located in the Residence 1, Residence 2, or Residence 3 Districts which contains a portion of a waterbody, or a portion of any setback described in section 4.8.2 a or b, shall possess, in addition to the lot area set forth in Schedule 4.2.1, the following minimum buildable area: Residence 1 /No sewer 37,000 sq. ft. Sewer 33,000 sq. ft. Residence 2 /No sewer 17,000 sq. ft. Sewer 13,000 sq. ft. Residence 3 /One - family 10,000 sq. ft. Two - family 13,000 sq. ft. No portion of the waterbody or portion of the lot within the protected setback from the waterbody may be used in computing the minimum buildable area required in the district in which the lot is .located. Item 2. Add a new section 4.8A, as follows: 4.8A Wetland Protection Districts 4.8A.1 Purpose. This section is intended to protect and preserve wetlands and the areas along existing rivers, streams, ponds, and lakes from adverse development; to protect the community against costs which may be incurred by the detrimental or unsuitable use of wetlands and the areas along existing rivers, streams, ponds, and lakes; to protect persons and property against the hazards of flood water inundation by assuring the continuation of the natural flow patterns of wetlands and waterbodies and by preserving natural floodwater storage areas and other areas subject to seasonal or periodic flooding or which may provide safe floodwater storage capacity; and, to conserve' natural conditions, wildlife, open space, and the amenities of the town. 4.8A.2 Applicability. The Wetlands Protection Districts include all wetland areas, as defined by the following poorly or very poorly drained soil associations: Whitman Ridgebury Scarboro Walpole Medisaprists and a setback of twenty (20) feet from the wetland area. These poorly drained or very poorly drained soil associations are shown in a document entitled "Soil Conservation Survey or Bristol County (Northern Part)," prepared by the Soil Conservation Service of the U.S. Department of Agriculture. Said document is incorporated by reference into the Mansfield Zoning. By -Law. o Where the boundaries of the district are in doubt or dispute, the burden of proof shall be upon the owner of the land in question to show where they should properly be located. At the request of the landowner, the town may engage a soil scientist or a qualified wetlands specialist, at the sole expense of the landowner, to provide technical assistance in the delineation of the district boundary. The board of appeals may, by special: permit, waive the applicability of this section where the landowner demonstrates that the land proposed for development does not contain any of the above - referenced poorly or very poorly drained soil associations. 4.8A.3 Permitted Uses 3 The following uses are permitted as of right in the Wetlands Protection Districts: a. conservation of soil, water, plants and wildlife; b. outdoor recreation, nature study, boating, fishing and hunting, where legally permitted; C. agriculture, horticulture, floriculture, and silviculture; d. driveways and roads where alternative means of access are inappropriate and not feasible. 4.8A.4 Uses Permitted by Special Permit Any use permitted in the underlying district in which the land is located may be permitted by special permit in the Wetlands Protection Districts provided that all of the following findings are made by the board of appeals: a. that the land containing the poorly or very poorly drained soil associations is not a wetland area, as ' defined by G.L. c. 131, s. 40; b. that the proposed use will not be in conflict with any of the purposes set forth in Section 4.8A.1. The board of appeals shall 'refer 'all applications to the Conservation Commission within five (5) days of receipt for review and recommendations. Failure by the Conservation Commission to report to the board of appeals within thirty (30) days thereafter shall be deemed a lack of opposition to the proposed work. Where the decision of the board of.appeals differs from the recommendation or report of the Conservation Commission, the board of appeals shall state the reasons therefor in writing. 4.8A.5 Lot Size. Any lot located in the Residence 1, Residence 2, or Residence 3 Districts which contains a portion of a wetland area or a portion of the setback described in section 4.8A.2, shall possess,. in addition to the lot area set forth in Schedule 4.2.1,• the following minimum buildable area: Residence 1/No sewer - 37,000 sq. ft. Sewer -33,000 sq: ft. - Residence .2 /No sewer 17, 000. sq`.` ft. Sewer 13,000_sq. ft. - Residence 3/One-family 10,000,sq. ft. _ Two - family.•.: 13,000 {`sq::ft. 5 Jx No portion of the wetland area `or portion of the lot within the protected setback from the wetland area maybe used in -computing + ` the minimum buildable area required in the'district in which the 4 lot is located. In addition, the following zoning changes will be reviewed at the June 9, 1993 meeting of the Planning Board. A copy of the proposed changes will be circulated at least one week in advance. 1. Nonconforming use /structure regulations; 2. Special permit /variance clarification; 3. Landscaping, screening and buffer provisions for site plan review; 4. Minor housekeeping amendments. l r GREAT WOODS AREA LAND USE STUDY IMPLICATIONS OF EXISTING ZONING AND POTENTIAL DEVELOPMENT 9 May 5,1993 Prepared for: Town of Mansfield Planning Board d• The LandUse Collaborative ❖ G7eat Woods Area Land Use Study Implications of Existing Zoning & Potential Development CONTENTS Introduction..................................................... ............................... 1 Potential Loss of Open Space ......................... ............................... 1 Relationship of Route 140 Extension to Zoning and Build- Out...... 2 Consistency with 1,988 Master Plan Goals ...... ............................... 3 Consistency with 1989 Open Space and Recreation Plan Goalsand Objectives ...................................... ............................... 6 Industrial Park vs. Commercial Strip — The School Street Corridor........................................................... ............................... 8 Summary and Conclusions .............................. ..............................1 0 The LandUse Collaborative May 1993 GREAT WOODS AREA LAND USE STUDY IMPLICATIONS OF EXISTING ZONING AND POTENTIAL DEVELOPMENT IntrodUctlon This report reviews the implications of existing zoning and land use trends in the Great Woods study area. First, the report quantifies the amount of open land that would be lost to development under "build- out ", and identifies general locations where such land use changes would occur. Second, the potential implications of an extension of Route 140 into the study area are discussed. Next, the report reviews the Town of Mansfield's land use goals and objectives as set forth in its Master Plan (1988) and Open Space and Recreation Plan (1989), and identifies ways in which the development that is permitted under current zoning (as projected in the build -out analysis) is inconsistent with these goals and objectives. Finally, the report focuses on the School Street corridor in the "Golden Triangle ", an area where special care should be taken to ensure that development does not seriously compromise the town's land use goals. Potential Loss of Open Space The study area contains a total of approximately 1,286 acres, of which 106 are already developed as single- family homes in the R -1 Residential zoning district, and another 106 acres are occupied by the Great Woods Center for the Performing Arts. Of the remaining 1,074 acres, 285 acres are in public ownership, leaving about 789 privately -owned acres that are theoretically available for development. Of this land, 38 acres are developed for single residences on land that could support additional residential development; 38 acres (in the "Golden Triangle" area) are developed for residences but zoned for industry; and the remaining 712 acres are currently undeveloped. The build -out analysis estimated that a total of 336 acres (43 percent) of this privately - owned land would be excluded from development because of soils conditions or the presence of wetlands. These areas comprise two north -south corridors through the study area, following the drainage patterns of Hodges and Great Brooks and their tributary streams (and abutting the 197 acres owned by the Town of Mansfield and the Natural Resources Trust and held for conservation purposes). Whether or not these parcels are completely unbuildable under the town's zoning regulations may be open to interpretation; nevertheless, the extent of wetland soils and stream systems in these corridors, combined with the difficulty of providing access to the area, suggests that these areas are unlikely to be developed in the foreseeable future. The remaining open land that could be lost to development under existing zoning regulations totals 453 acres, which is equal to about 35 percent of the total study area acreage, 45 percent of the undeveloped land in the study area, and 64 percent of the The LandUse Collaborative May 1993 Great Woods Area Land Use Study Implications of Existing Zoning & Potential Development undeveloped land in private ownership. Because of the patterns of public land ownership, drainage systems, and soils indicative of wetlands areas, this land is primarily located around the northerly and southerly edges of the study area. On the north side of the study area, there are three principal areas where currently open land could be developed: • The large open area within the "Golden Triangle" (in the area bounded by School Street, Route 140 and Interstate 495), including the existing farm, would appear to be a prime candidate for development because of its zoning (for industry) and access; ` • A portion of the Tri- County Beagle Club's property adjacent to Interstate 495 is upland and could be developed for residences upon provision of adequate access; and • A parcel abutting the town conservation land and the Tri- County Beagle Club land, adjacent to the railroad line, has potential for residential development, although the issue of access is problematic. There are also three areas of potential development on the south side of the study area: • Several large parcels between Interstate 495 and the Great Woods Center for the Performing Arts (the Kraska, Clemmey and Vazza properties) are zoned for industrial development. These parcels have potential access from South Main Street as well as potential future access from the proposed continuation of Route 140 through the Great Woods into Norton. • A smaller parcel (also owned by Kraska) on the Norton town line, to the west of the Great Woods Center, is zoned for residential use but adjoins commer- cially -zoned parcels in Norton that are in common ownership. An 85 -acre parcel between Oak Street and the town's conservation property is currently assessed as farmland but is zoned for residential use. The build -out analysis estimated that at least 80 percent of this parcel could be developed. The above areas are delineated on the map of Existing and Potential Development. Relationship of Route 140 Extension to Zoning and Build -Out As noted in the build -out analysis, there has been discussion of a potential extension of "new" Route 140 southward from the Interstate 495 interchange through the Great Woods and into Norton. If built, such a road would probably skirt the westerly side of the Great Woods Center for the Performing Arts and would provide improved access not only to the Performing Arts Center but also to the adjacent industrially -zoned parcels (the Kraska, Clemmey and Vazza properties). Improved access might also be provided to additional properties to the north and west of the new roadway, which are currently landlocked (the "Central" subarea as described in the build -out analysis). The LandUse Collaborative Page 2 Great Woods Area Land Use Study Implications of Existing Zoning & Potential Development A question has been raised as to how the introduction of such a major road into the interior of the Great Woods would affect development in the study area. Because the build- out analysis assumed that every parcel could eventually achieve access to the existing public road network, there would be no impact on the quantity of development projected; however, the timing of such development could be significantly advanced. A more important question, however, relates to the town's own policy response to the construction of anew roadway into the study area. An extension of Route 140 would significantly improve the study area's accessibility from Interstate 495, and this in turn would tend to create demands for zoning changes to allow for additional nonresidential development. In fact, such demands might precede the decision to build the road in order to provide the economic rationale for the state to support a costly project in an environmen- tally sensitive area. However, in some cases the existing zoning of the area is already inconsistent with previously expressed town policies regarding open space preservation in the Great Woods (these inconsistencies are discussed in detail in the following sections). The town's formally adopted policies call for both increased land acquisition and regulatory changes that are more protective of sensitive natural resources. Therefore, if the town is to continue supporting its stated goals and objectives, both the Planning Board and the Board of Selectmen should make a clear policy statement to the effect that they will oppose the rezoning of existing residentially -zoned areas to a more intensive uses, regardless of the quality of access or the type or level of development of neighboring properties. Consistency with 1988 Master Plan Goals The Master Plan prepared in 1988 for the Town of Mansfield by Connery Associates resulted in a comprehensive rezoning of the town in 1989. This town -wide rezoning was designed to achieve the goals set forth in the Master Plan, and reflected a new emphasis in town policies on managing growth so as to preserve the character of the community and to minimize expenditures for infrastructure. The Master Plan identified the following six "basic goals ": • Preserve the small -town character and open space • Retain some central role for downtown Mansfield • Maintain a diversified and affordable housing stock • Protect and preserve existing older neighborhoods • Protect and preserve the existing groundwater supply • Minimize the need for public expenditure The LandUse Collaborative Page 3 Great Woods Area Land Use Study Implications of Existing Zoning & Potential Development These basic goals were then used to evaluate three "alternative development options" or scenarios: • "Trends extended" —a continuation of existing policies favoring continued suburbanization; • "Trends adjusted"— incorporating minor adjustments to existing policies; and • "Trends modified'— representing a significant departure from the town's existing policies. For each goal and each alternative development option, specific planning strategies were identified. The following outline fists the goals and principal strategies, and identifies their relationship to current zoning in the Great Woods Study Area. 1. Preserve the small -town character and open space Strate 'es: • Reduce densities in outlne areas Residential densities were reduced in the Great Woods area through the creation of the "Natural Resource and Scenic Residential" (Rl) district, raising minimum lot areas to 45,000 square feet (40,000 square feet if served by public sewers). • Use clustering to keep development hidden from main roads Cluster residential development is allowed through the Special Permit process, but has not achieved great popularity in the town. A more proactive stance such as mandatory clustering might be considered. However, little of the residentially - zoned land in the Great Woods study area is visible from "main roads ", so that this goal has little relevance. The town also has a provision allowing "residential compounds" of between two and six units in the Rl district by special permit. This is essentially a special type of cluster development for small groups of dwellings, where at least 35 percent of the total area must be set aside as permanent open space. One residential compound has been created in the study area. 2. Retain some central role for downtown Mansfield trategies: • Reduce non - residential development outside downtown The creation of the Industrial Park (I1) district did not reduce the potential for non- residential development outside the downtown. Permitted development intensities are higher in the Central Business (BI) and Downtown Mixed Use (112) districts than in the II district. However, because of the substantial amount of undeveloped land in the Il district and the broad range of allowed and permitted uses, the School The LandUse Collaborative Page 4 Great Woods Area Land Use Study Implications of Existing Zoning & Potential Development Street corridor has the potential to compete with the downtown area for commercial space. This is discussed in detail later in this paper. • Retain downtown commuter rail station A new commuter rail station was considered for the School Street site, but the proposal is not currently active. 3. Maintain a diversified and affordable housing stock Strategies: • Clustering PUD "village" development and mull- family development on older industrial sites to diversify supply . Not applicable to the Great Woods (no "older industrial sites "). • Incentive zoning and housing trust fund to create affordability The provisions allowing increased density as an incentive for the development of affordable housing do not apply in the Rl district, and therefore have no impact on the study area. • Protection of older neighborhoods to help maintain older stock This goal applies to the denser residential neighborhoods close to the downtown. Residential areas in the study area (i.e., primarily between Elm Street and Hodges Brook) are newer single - family neighborhoods. 4. Protect and preserve existing older neighborhoods Strategies: • Cap development density Not applicable to the Great Woods. • Allow residential reuse of older industrial areas Not applicable to the Great Woods. 5. Protect and preserve the existing groundwater supply Strategies: • Reduce total growth allowed to stay within limits of capacity of water supply Total growth allowed was reduced through increases in minimum lot area. • Greatly reduce density in critical water yield areas The Master Plan recommended that a "Zone T' study be undertaken to define aquifer boundaries with the ultimate purpose of applying further development restrictions and/or acquiring additional public open space. The Master Plan also included maps of water yield and groundwater recharge areas indicating that the The LandUse Collaborative Page 5 Great Woods Area Land Use Study Implications of Existing Zoning & Potential Development Great Woods study area included some areas of "secondary water yield" (along the Hodges Brook corridor and on both sides of School Street) as well as primary and secondary recharge areas. However, these maps do not bear any relationship to the "Water Supply Protection Districts" established in the Zoning By -Laws, which do not encompass any part of the study area. This is a potential area of conflict between the Master Plans goals and the existing zoning which should be investigated further. • Sewering to protect groundwater The permitted residential density of the majority of the study area was reduced in order to avoid the need for sewering. Public sewers could be accessed by the industrial properties in the South Main Street portion of the study area. • Aggessive and priority land acquisition in critical water yield areas The Master Plan recommended that the town prioritize open space acquisition in five types of areas, including "favorable and secondary water yield areas ". As noted above, the "secondary water yield areas" include the Hodges Brook corridor and much of the "Golden Triangle" on both sides of School Street. 6. Minimize the need for public expenditure Strategies; • Reduce growth to stay within limit of water supply and sewage treatment plan t Total growth allowed was reduced through increases in minimum lot area. • Reduce density allowed in outing areas to avoid need for sewers This strategy was addressed through the increase in minimum lot area to 45,000 square feet. • Reduce allowed growth in certain areas to avoid major road improvements This strategy was not addressed in the Great Woods area. On the contrary, the Master Plan emphasized the need to upgrade the South Main Street interchange of Interstate 495. The impacts of potential growth on School Street are addressed later in this report. Consistency with 1989 Open pace and Recreation Plan Goals and Objectives The Open Space and Recreation Plan was prepared by the Conservation Commission and Recreation Commission in 1989, includes an inventory of conservation, recreation and historic resources, a statement of conservation and Recreation needs, a statement of goals and objectives, and an action plan. The statement of needs included the results of a 1987 survey completed by 462 of the town's residents, which identified the three most serious problems facing the town as (1) protection of the water supply, (2) loss of open space, and The LandUse Collaborative Page 6 Great Woods Area Land Use Study implications of Existing Zoning & Potential Development (3) overburdening of town services. A public meeting in December 1988, held to inform residents about the progress of the Plan and to hear their concerns about open space and recreation, confirmed the high priority given to open space acquisition by residents. Among the summary statements included in this section of the Plan were the following: • Additional conservation areas and recreational facilities are needed. • Existing areas need to be better maintained and managed. • As much as possible should be done to protect water supplies. Based on these conclusions, the Plan set forth four general goals, with detailed objectives relating to each goal. The following discussion lists each goal and highlights the statements regarding objectives and recommended actions that are relevant to the Great Woods study area. 1. Acquire more open space lands The Plan gives priority to acquisition of additional open space and conservation land, considering this to be an urgent need. Four general areas were identified as targets for land acquisition within the next five years (i.e., from 1989 -90 through 1993 -94): the Great Woods, the Canoe River watershed, the Wading River greenbelt, and "Areas of Special Concern", which were defined to include "areas identified by the state as important wildlife habitats and areas important to the town for the protection of drinking water supplies." The Plan shows a large portion of the Great Woods study area as an Area of Special Concern, including land currently owned by the Commonwealth of Massachusetts, the Tri- County Beagle Club, and several private owners (including the entire Central subarea as described in the build -out analysis). Clearly, development of any of these parcels would conflict with the goals of the Open Space and Recreation Plan, which focuses on them both as part of the Great Woods and_as areas of particular environmental significance. 2. Protect aquifers and groundwater recharge areas The Plan's objectives echo the recommendation of the Master Plan for a "Zone 2" study for existing and proposed town wells, as well as recommending that the town's Water Resources District be modified based on the results of the study and that land acquisition activities take the delineated Zone 2 areas into consideration. Since it is quite possible that portions of the Great Woods study area would be included in a Zone 2 delineation, continued development within the study area could be in conflict with this goal. However, in the absence of the recommended Zone 2 study it is not possible to draw any firm conclusion in this regard. 3. Provide for public access to conservation lands and manage In accordance with community needs The plan recommended that trails be developed in the town -owned conservation properties within the Great Woods. The development permitted under existing zoning would not impact on this recommendation. The LandUse Collaborative Page 7 Great Woods Area Land Use Study Implications of Existing Zoning & Potential Development 4. Expand and Improve recreational facilities The plan recommended that satellite playground and park areas be developed for the East and West Mansfield areas, to serve the new residential growth. However, a location suggested for such facilities include the undeveloped recreational property on West and Pine Streets, and the Great Woods area is not identified as a potential location. Industrial Park vs Commercial Strip — The School Street Corridor The stretch of School Street between Interstate 495 and "new" Route 140 is zoned "Industrial Park" (I1), reflecting the town's strategy of providing additional development space with good access to the regional highway system. According to the Master Plan, the I1 zoning district was designed to reserve certain areas, including the "Golden Triangle", "primarily for the expansion of industrial and office uses." As inducements to such uses, greater building heights and floor area ratios were permitted in the I1 district for office and industrial buildings than for retail uses, and these intensity standards are also more permissive in the Il district than in other industrial districts in the town. The Master Plan stated that "the amount of retail development [in the Il district] is restricted in order to restrain the growth in traffic and encourage the retention of a strong downtown Mansfield." However, in addition to industrial and warehousing uses, the I1 district permits a broad range of business uses as of right, including retail stores, office buildings, restaurants, amusement facilities, and automobile repair and body shops, and dealerships. Special permit uses in this district include malls, fast food restaurants, gas stations, and motor vehicle salvage yards. The "Golden Triangle" is abutted on the north by the Cabot, Cabot and Forbes industrial park, and the I zoning was created specifically to extend the CC &F land use pattern. However, there are two characteristics of the School Street corridor that distinguish it from the existing development to the north and that will influence what speck uses are established there. First, the parcels on the northerly side of School Street are relatively narrow, with the railroad line behind them. Parcel depths range from about 600 feet near Route 140 to less than 200 feet at the intersection with a dead -end street, with two additional parcels in a narrow triangle adjacent to Interstate 495. It is not clear whether such parcels could be developed for industrial uses comparable to those on the north side of the railroad line, which are on substantially larger lots: for example, of the three buildings directly north of the tracks only one would fit on the north side of School Street even if the existing small lots were consolidated. Second, School Street serves as one of two major collector roads for the residential areas of West Mansfield. A build -out analysis conducted for the town by SRPEDD in 1988 identified this section of road as one of two "areas of concern" with respect to business and industrial traffic generation. The SRPEDD report noted that School Street "will probably bear the burden of ... the majority of the traffic generated by the new residential growth in the western end of the town and a portion of the business and industrial traffic." Because School Street provides an important access to the existing The LandUse Collaborative Page 8 Great Woods Area Land Use Study Implications of Existing Zoning & Potential Development industrial park area (via Plymouth Street), and also serves as a major connector between downtown Mansfield, West Mansfield neighborhoods, and Route 140, there will be increasing pressure to develop frontage parcels for roadside service uses and convenience stores. To the extent that these parcels are less desirable for industrial and office uses due to their sizes and configurations, this pressure could easily result in their development for retail and service uses. Thus, although the purpose of the Il zoning district is to promote industrial and office uses with a modest amount of supporting retail and service uses, the realities of parcel configurations and market forces may well result in a very different outcome for School Street: the emergence of a commercial strip. By creating a new suburban shopping corridor, this would clearly conflict with the primary Master Plan goal of preserving Mansfield's "small -town character". Furthermore, commercial roadside development along School Street would have a considerable negative impact on the visual quality of the corridor because Mansfield's Zoning By -Law contains only minimal landscaping and design standards for parking areas. In particular, the following aspects of the regulations should be noted: • Driveways may be up to 50 feet wide (and wider if divided), and may be spaced as close as 30 feet apart. • Parking lots must be screened at lot lines, but only a ten -foot landscaped strip is required at the street line. • There are no requirements for internal landscaping of parking lots.` • There are no requirements for locations or setbacks of parking areas. These standards are appropriate for development within industrial parks and downtown areas, but are inadequate for a roadway like School Street with potential conflicts between local and through traffic and high visibility by passing traffic. For example, under these standards, driveways could take up nearly two- thirds of the street frontage, with less than two car lengths between each pair of potential turning movements. In order to preserve the quality of the School Street corridor the town should make several changes in its Zoning By -Laws. First, the table of use regulations should be revised to expand the list of retail and service uses that would require a special permit.. ** Second, detailed landscaping and screening regulations should be developed for commercial uses in the Il district in order to preserve the appearance of the corridor. * For a parcel with the minimum required area of 40,000 square feet, the requirement that 35 percent of the lot area be maintained as open space could be achieved with a 20 -foot landscaped strip around the perimeter of the parcel. ** Alternatively, the town could consider establishing a special corridor business district along the School Street frontage in recognition of the greater potential that this area has for retail and service uses in comparison to industrial development. The LandUse Collaborative Page 9 Great Woods Area Land Use Study Implications of Existing Zoning & Potential Development Finally, the regulations regarding driveway design and spacing should be modified to take into consideration the relatively high traffic volumes along collectors such as School Street and the safety and congestion implications inherent in commercial strip development. Summary and Conclusions The build -out analysis estimated that under existing zoning regulations, approximately 450 acres that are now open space could be developed for residential commercial, or indus- trial uses. This total represents about 45 percent of the undeveloped land in the study area, and 64 percent of the undeveloped land in private ownership. Because of the patterns of public land ownership, drainage systems, and soils indicative of wetlands areas, this land is primarily located around the northerly and southerly edges of the study area, including the "Golden Triangle" area and several large parcels that are currently participating in preferential open space taxation programs. The amount of development estimated by the build -out analysis would not be affected by the introduction of a new roadway into the interior of the study area; however, such a roadway would advance the timing of that development and would also put pressure on the town for zoning changes to permit even more intensive development. The review of Mansfield's Master Plan and Open Space and Recreation Plan has identified the following actual and potential inconsistencies between the town's stated land use goals and objectives and the development policies that are implied in its zoning regulations: • The extensive array of business uses allowed as of right and by special permit in the I1 district is inconsistent with the goal of limiting business and service uses outside the downtown area. The lack of a scientific delineation of the town's groundwater recharge areas (i.e., a "Zone T' study) has precluded a clear understanding of the potential impacts of development on the groundwater supply. The Master Plan recommends reduced density in recharge areas, and both the Master Plan and the Open Space Plan recommend increased town acquisition of open space in such areas. • The relationship between zoning and roadway capacity does not appear to have been addressed in the establishment of the I1 districts along School Street and South Main Street. The Open Space and Recreation Plan targets the Great Woods area in general, and the central core of the study area in particular, for open space preservation. The "Area of Special Concern" includes the Tri- County Beagle Club property, the state - owned land adjacent to the interchange of I -495 and Route 140, and the privately - owned parcels in the interior of the study area. Development of any of these parcels, although currently permitted by zoning, would conflict with the goals and objectives of the Open Space and Recreation Plan. The LandUse Collaborative Page 10 Great Woods Area Land Use Study Implications of Existing Zoning & Potential Development • In addition to the permissive zoning that applies elsewhere in the Il district, School Street between the 1 -495 overpass and Route 140 has two characteristics that will tend to make retail and service development more likely than industrial uses: (1) the street's dual role as a collector for the West Mansfield residential neighborhoods and an access to the CC &F industrial park (via Plymouth Street), and (2) the configuration of parcels on the north side of the street. Extensive roadside commercial development with minimal site design controls, as currently permitted under the town's Zoning By -Law, would conflict with the stated purpose of the I1 district, with the goal of concentrating future retail and service development in the downtown area, and with the primary goal of preserving Mansfield's "small -town character." The LandUse Collaborative Page 11