CHAPTER IV _ SPECIFICATIONS FOR PRELIMINARY
LAYOUTS, FINAL SUBDIVISION PLANS AND PLAN_PROFILES
SECTION 1. PRELIMINARY LAYOUT
Preliminary Layouts submitted to the Commission shall be drawings or prints of drawings at a scale of one inch equals forty feet (1"=40') or one hundred (100') feet on sheets either eighteen by twenty_four by thirty_six inches (18"x24"x36") in size, and shall contain the following information:
a) Names of owners and proposed subdivider, proposed subdivision name and identifying title, location of subdivision, approximate north arrow and scale and date of drawing.
b) Location and approximate dimensions of all existing property lines of the subdivision.
c) All pertinent features, such as existing structures, easements, watercourses, swampland and wooded areas, properly labeled.
d) Approximate contours of the existing surface of land, with intervals adequate to indicate drainage and grades.
e) Proposed lot lines with approximate dimensions and area of all proposed lots including assessor's block and parcel numbers.
f) Location and approximate dimensions and area of all property proposed to be set aside for open space, playground or park use.
g) A reference map to the scale of one inch equals one thousand feet (1"=1000') showing the proposed subdivision and tie_in to the nearest street intersection. If the application submitted covers only a part of the applicant's holdings, a map which may appear on the same sheet, drawn on a scale in which one inch equals two hundred feet (1"=200') showing an outline of the plotted area with its proposed road system and an indication of a proposed future road system and lot layout for the remaining portion of the tract.
h) Where the subdivider anticipates that the subdivision will be developed in phases, such phases should be delineated on the Preliminary Layout.
SECTION 2. FINAL SUBDIVISION PLAN
The Final Subdivision Plan submitted to the Commission for approval shall be a clear and legible print at a scale of one inch equals forty feet (1"=40') feet on sheets twenty_four by thirty_six inches (24"x36") or eighteen by twenty_four inches (18"x24"). When more than one (1) sheet is required an index sheet of the same size showing the entire subdivision shall be submitted with the Plan. The Plan, which may composed of multiple sheets or sets of sheets, shall show the following information:
a) Names and addresses of applicant and proposed subdivider, if other than owner, proposed subdivision name and identifying title and location, scale of drawing, with north arrow, date of drawing and name, license number and seal of land surveyor and licensed professional engineer.
b) Location and dimensions of all existing property lines of the subdivision with reference to monuments, pipes, drill holes, foundations or other points of reference of a fixed or semi_permanent nature; the location of any Town_owned buildings or facilities on adjacent properties; Assessor's map, block and parcel numbers; the location of any Town boundary line within the subdivision, and the square footage of the proposed lot located within the Town and not within the Town; utility poles and numbers.
c) All permanent features, such as existing structures, stone walls, fences, easements of record, watercourses, ponds, swampland, wooded areas, specimen trees (especially along existing streets), and area of all land to be set aside for community wells (if any), playground, park or open space use.
d) Names and addresses of present record owners of abutting properties, as indicated in the records of the Town Assessor; names and approval date of abutting subdivisions.
e) Lines of proposed and existing roads, lots, easements and areas to be dedicated to public use; lengths of all straight lines, and adequate data for all curves.
f) Area of all lots in square feet and acres. Each lot shall be numbered and its dimensions on all sides given. If a side is a bent or curved line, a single dimension shall, nevertheless, be given in addition to any subordinate dimensions.
g) Proposed road names which shall not duplicate or be readily confused with already existing names unless an extension thereof.
h) Any additional data necessary, together with the aforesaid data, to enable a licensed surveyor to determine readily the location of every street line, lot line, boundary line, and to reproduce such lines upon the ground to the A_2 Standard of Accuracy.
i) All lots shall have street numbers assigned in accordance with the following system: The left side of the road shall have odd numbers assigned, while the right side shall have the even numbers; numbering shall increase from major thoroughfares, north_to_south, or east_to_ west; one number shall be allowed for every 20 linear feet on each side of the street; numbers shall not be assigned to undeveloped land or lots, but allowance shall be made for future development.
j) Certificate under seal of (i) a Connecticut licensed professional engineer as to the adequacy of proposed public Improvements, and (ii) a Connecticut licensed land surveyor that both the survey and the map conform to the standards of survey and map accuracy respectively of Class A_2 as defined in the "Recommended Standards for Surveys and Maps in the State of Connecticut" as adopted by the Connecticut Association of Land Surveyors, Inc. on September 13, 1984, or as the same may be amended from time to time.
k) A reference map to the scale of one inch equals one thousand feet (1"~=~1000') showing the proposed subdivision and tie_in to the nearest street intersection; and also an index map of the subdivision at a scale of one inch equals two hundred feet (1" = 200'). If the application submitted covers only a part of the applicant's holdings, a map which may appear on the same sheet, drawn on a scale in which one inch equals two hundred feet (1" = 200') showing an outline of the plotted area with its proposed road system and an indication of a proposed future road system and lot layout for the remaining portion of the tract.
l) Where the subdivisions are proposed to be developed in phases, such phases shall be clearly delineated on the Final Subdivision Plan.
m) Soil types and inland wetlands and watercourses, as defined in the Willington Inland Wetlands and Watercourses Regulations, delineated by a certified soils scientists; Flood Zones, in accordance with the most current Federal Flood Insurance Rate Map; existing wells, public water supply watersheds, and other public or private water supplies; existing and proposed contours at intervals of two (2') feet, or less where the topography of the site and the area around it cannot be otherwise accurately and fairly represented. Topography is to be based on aerial photogrametry or field survey, not interpolated from CGS quadrangle maps.
n) The application of passive solar energy techniques, as set forth in Section 8 hereafter.
o) The location of any signs to be used for identification or sale of lots, in accordance with Section 18, Sign Regulations, of the Willington Zoning Regulations.
p) The location of any proposed highway right_of_way, as on file in the Office of the Town Clerk.
q) The approximate location and outfall of any footing or curtain drains, where required.
r) The location of all septic system primary and reserve leaching fields; the location of deep observation hold and percolation tests located in each such field; the results of all such tests, in tabular form; and the designation of any lot for which an engineered system is required pursuant to these Regulations.
SECTION 3. PLAN_PROFILES
When new roads or improvements of existing roads are involved in a subdivision, the Final Subdivision Plan shall be accompanied by complete Plan_Profiles of each such road drawn on a sheet which shall be either twenty_four by thirty_six inches (24" x 36") or eighteen by twenty_four inches (18" x 24") in size. The horizontal scale shall be the same as that used in the Final Subdivision Plan. When the horizontal scale of one inch equals forty feet (1" = 40') is used, the vertical scale shall be one inch equals four feet (1" = 4'). When the horizontal scale of one inch equals one hundred feet (1" = 100') is used, the vertical scale shall be one inch equals ten feet (1" = 10'). Such Plan_Profiles shall show:
a) Existing ground surface on the center line, the proposed line grade, and existing elevations at both road lines.
b) Elevations at each high and low point.
c) By proper notation, location and elevations of bench marks, based on U.S.C.&G.S. datum.
d) Grades expressed as percentages.
e) Stations at high and low points, at centerline intersections, and at suitable intervals.
f) Data showing disposition of surface water, including, but not limited to, catchbasins, plungepools, retention/detention basins, and the like; water and sanitary sewer pipes (if any), including sufficient data to permit checking of drainage designs; and the location of all associated easements or rights of way in favor of the Town or any public utility.
g) Typical cross_section of each road indicating location, dimensions and materials of proposed paved improvements and utilities.
h) Certificate under seal of (i) a Connecticut licensed professional engineer as to the adequacy of proposed public Improvements and (ii) a Connecticut licensed surveyor that the Plan_Profiles are substantially correct.
i) Location of street name, speed limit, stop, dead end, and other street signs, as recommended by the Town Engineer.
SECTION 4. HYDRAULIC STUDY
The applicant shall provide a hydraulic study sufficient to demonstrate compliance with the requirements of Chapter VI, Section 1(e) of these Regulations.
SECTION 5. EROSION AND SEDIMENTATION CONTROL PLAN
A soil erosion and sediment control plan consistent with the publication of the U.S. Department of Agriculture, Soil Conservation Service, entitled, Erosion and Sedimentation Control Handbook, as the same may be amended from time to time, shall be submitted with all subdivision applications when the disturbed area of development is more than one_half (1/2) acre.
SECTION 6. STREAMBELT RESERVATIONS
The applicant shall delineate a streambelt along any watercourses passing through the property to be subdivided. The streambelt shall be established in accordance with the publication of the U.S. Department of Agri_ culture, Soil Conservation Service, entitled, A Guide to Streambelts _ A System of Natural Environmental Corridors in Connecticut.
SECTION 7. GROUNDWATER MANAGEMENT PLAN
If the seasonal groundwater elevations could affect the structures, sewage disposal systems or the roadway, a system of underdrains shall be shown on the plans.
SECTION 8. PASSIVE SOLAR ENERGY TECHNIQUES
The applicant shall demonstrate to the Commission that he has considered, in developing the subdivision plan, using passive solar energy techniques. Passive solar energy techniques mean site design techniques which maximize solar heat gain, minimize heat loss, and provide thermal storage within a building during the heating season and minimize heat gain and provide for natural ventilation during the cooling season. The site techniques shall include, but not be limited to: (1) House orientation; (2) street and lot layout; (3)~vegetation; (4) natural and man_made topographical features; and (5) protection of solar access within the development. These techniques are to be used where feasible, but not at the expense of adverse impacts to the natural enviro
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