A. 
Design guidelines. All subdivisions shall be designed and improvements made by the developer consistent with the requirements of Article IV. Design and construction shall do the following:
(1) 
Reduce, to the extent reasonably possible:
(a) 
Volume of cut and fill;
(b) 
Area over which existing vegetation will be disturbed; especially if within 200 feet of a river, pond, or stream, or having a slope of more than 15%;
(c) 
Number of mature trees removed;
(d) 
Extent of waterways altered or relocated;
(e) 
Visual prominence of man-made elements not necessary for safety or orientation;
(f) 
Erosion and siltation;
(g) 
Flood damage;
(h) 
Number of driveways exiting onto existing streets;
(i) 
Disturbance of important wildlife habitats, outstanding botanical features, and scenic or historic environs.
(2) 
Increase, to the extent reasonably possible:
(a) 
Vehicular use of collector streets to avoid traffic on streets providing house frontages;
(b) 
Visual prominence of natural features of the landscape;
(c) 
Legal and physical protection of views from public ways;
(d) 
Street layout facilitating south orientation of houses;
(e) 
Use of curvilinear (consisting of or bounded by curved lines) street patterns.
B. 
Conformance with Master Plan. The street layout and utilities in all plans shall conform to the proposals of the Lancaster Master Plan, where applicable.
C. 
Standards of construction. Standards of construction not otherwise specified hereunder shall be according to the "Standard Specifications for Highways and Bridges of the Massachusetts Department of Public Works" (latest edition with amendments in effect at that time).
D. 
Typical cross sections. Design and construction shall conform to the typical cross sections.[1]
[1]
Editor's Note: The typical cross sections are on file in the Planning Board office.
A. 
Location.
(1) 
All streets in the subdivision shall be designed so that they will provide safe vehicular travel. Due consideration shall also be given to the attractiveness of the street layout in order to obtain the maximum livability and amenity of the subdivision.
(2) 
Streets shall be continuous and in alignment with existing streets as far as is practicable.
(3) 
If adjoining property is not subdivided, proper provision for extending streets shall be made.
(4) 
Reserve strips prohibiting access to streets or adjoining property will not be permitted except where, in the opinion of the Planning Board, such strips are in the public interest.
B. 
Alignment.
(1) 
Streets shall intersect at 90° when possible, and at not less than 60° in other cases.
(2) 
The minimum center-line radius of any curve shall be 100 feet on a lane, 150 feet on a minor street, and 200 feet on a collector street or where gradient exceeds 5%. The Planning Board may require a greater radius where deemed necessary for the public safety.
(3) 
All intersections and approaches to intersections shall be cleared of any obstructions to the motorist's view and maintained clear. Street lines at intersections shall be cut back to provide for pavement radii of not less than 25 feet.
(4) 
Sight distances of at least 225 feet in each direction shall be provided at intersections, except that 400 feet sight distance shall be provided at intersections with collector streets, state-numbered highways, and other streets having high-speed traffic. At intersections involving such streets, intersection designs shall allow for longer turning radii, and safe acceleration and deceleration, potentially involving increased street width, increased curb radii, and use of traffic islands for channelization. Between intersections, minimum sight distance shall be as follows:
[Amended 4-27-1987]
(a) 
Collector street: 400 feet.
(b) 
Minor street: 225 feet.
(c) 
Lane: 125 feet.
(5) 
Center-line offsets for intersecting streets shall not be less than 150 feet.
C. 
Dead-end streets.
(1) 
Only lanes may be permitted to be dead-end streets, unless, in the opinion of the Board, such dead-end streets are necessitated in other cases by topography or other local conditions.
(2) 
Dead-end streets shall be provided at the closed end with a cul-de-sac having pavement diameter of 120 feet and property line diameter of 160 feet, or an alternative turnaround designed for a vehicle of thirty-foot length, eight-foot width, and having an outside turning radius of 57 feet. Islands in the cul-de-sac are not recommended.
[Amended 6-13-2011]
D. 
Width.
(1) 
Minimum street width shall be as follows:
[Amended 4-27-1987; 6-13-2011]
Type of Street
Right-of-Way
(feet)
Pavement
(feet)
Collector street
60
30
Minor street
50
24
Lane
40
24
A divided boulevard shall be 12 feet on each side.
[Added 6-13-2011]
(2) 
The center line of the paved surface shall normally coincide with the right-of-way center line.
(3) 
The Planning Board may require slope easements where retention cannot be adequately handled within the required right-of-way.
E. 
Grades.
(1) 
Grades of all streets shall not be less than 1.0%.
(2) 
The maximum grades for streets shall be as follows:
(a) 
Collector street: 8%.
(b) 
Minor street: 10%.
(c) 
Lane: 11%.
(3) 
Grades shall not exceed 4% within 30 feet of an intersecting street.
(4) 
All changes in grade exceeding 1% shall be connected by vertical curves of sufficient length to afford a passing sight distance of at least the following, unless drainage considerations for sag vertical curves dictates otherwise:
(a) 
Collector street: 275 feet.
(b) 
Minor street: 175 feet.
(c) 
Lane: 125 feet.
(5) 
The street surface shall have a cross slope of 3/8 inch per foot on each side of the center line.
(6) 
Center-line profile shall normally be at least three feet above the grade of adjacent, nonbordering vegetative as well as bordering vegetative, wetlands.
[Amended 4-27-1987]
F. 
Construction.
G. 
Surface preparation. Clearing and grubbing shall be performed to remove stumps, brush, roots, boulders, and like material from the area of the traveled way, shoulders, sidewalks, utility trenches, but elsewhere, wherever feasible, existing vegetation shall be protected.
H. 
Forming the subgrade. All topsoil, subsoil, rocks, ledge and other unsuitable material shall be excavated to a depth of at least 16 inches within the traveled way, 12 inches for shoulders, and 10 inches for sidewalks. Unless a permit is granted by the Town for the removal of loam and topsoil, said material shall be stockpiled on the premises for final landscaping of roadway shoulders and adjacent house lots. The depth of excavation may be reduced by written authorization of the Planning Board or its agent if the existing base is clean gravel suitable for roadway foundation. A greater depth of excavation may be required in any area where the subgrade material (clay, peat, etc.) will not support the roadway, or drainage conditions require more gravel to establish a firm foundation. Prior to placement of the gravel base course, the entire subgrade surface shall be thoroughly compacted by means of a three-wheel roller weighing not less than 10 tons or equivalent pneumatic tired or vibratory compactors. After compacting, the surface shall show no deviation in excess of two inches from the grades indicated on the drawings. No gravel base course shall be placed in any subgrade area until said area has been inspected and approved by the Planning Board or its agent.
[Amended 6-13-2011]
I. 
Placing and compacting base course materials. Base course gravel shall be placed in maximum lifts of eight inches to provide a twelve-inch compacted base depth within the traveled way. Each lift is to be thoroughly compacted with a three-wheel roller weighing not less than 10 tons, or equivalent pneumatic tired or vibratory compactors. The final lift is to be a finer gradation with no stones larger than three inches in diameter. The base course gravel shall be placed not less than two months prior to surfacing. All drainage and utilities are to be installed prior to placing base course gravel. The base course gravel, once approved, is not to be disturbed by digging without written authorization of the Planning Board or its agent.
[Amended 6-13-2011]
J. 
Conditioning of base course prior to surfacing:
(1) 
The surface of the base course will be inspected and tested for tolerances by the Department of Public Works or its agent. Any deviations in excess of the required tolerances shall be corrected by the subdivider as directed. Any ruts or soft yielding areas in the base course shall be corrected by removing unsuitable material, adding suitable material, reshaping and recompacting as directed. The base course, immediately before surfacing, shall be fine-graded to three inches below final grade as shown on the profiles of the definitive plan, with the grades of the street surface properly marked on grade stakes set no further apart than 50 feet. Grading shall be by means of a self-propelled road grader and such hand labor as may be required. Compaction will be by an approved-type roller weighing not less than eight tons. The surface shall show no deviation in excess of 1/4 inch from the grades indicated on the definitive plan.
[Amended 6-13-2011]
K. 
Application of permanent surface. A pavement of Class I bituminous concrete, Type I-1, shall be placed in strict accordance with the Massachusetts DPW Standard Specifications (Sections 460.0 through 460.62, or later revisions). Said pavement shall be laid in two courses, consisting of 2 1/2 inches compacted thickness of binder course and 1 1/2 inches of wear course. The completed pavement shall have a uniform compacted thickness of four inches. No permanent surface shall be applied after November 1 unless authorized in writing by the Planning Board or its agent. Utilities, road base, drainage system and binder course shall be placed before any building permits are issued within that project phase.
[Amended 6-13-2011]
L. 
Berms and curbs. Bituminous concrete berms shall be installed on both sides of all roadways in conformity with the typical cross section appended hereto,[1] except where waived by the Board where open drainage systems are being relied upon.
[Amended 4-27-1987]
[1]
Editor's Note: The typical cross sections are on file in the Planning office.
M. 
Driveways. All driveways extending from the completed road surface to the lot line must have a topping of at least three inches of bituminous concrete. All driveway slopes must end at the street right-of-way, then continue forward to the completed road surface in the same grade as the sidewalk strip and/or shoulder in order to allow proper drainage of surface water. See the Lancaster Zoning Bylaws for curb cut design standards.[2] For driveways in excess of 1,000 feet, refer to the Required Off-Street Parking section in the Lancaster Zoning Bylaws.[3]
[Amended 6-13-2011]
[2]
Editor's Note: See Ch. 220, Zoning.
[3]
Editor's Note: See Ch. 220, Art. VI, Required Off-Street Parking.
N. 
Access through another municipality. In instances where access to a subdivision is proposed to cross land in another municipality, the applicant shall provide the Board with certification from appropriate authorities in that municipality that such access is in accordance with the subdivision regulations of such municipality, and with its master plan if applicable, and that a legally adequate performance bond has been duly posted, or that such access is already adequately improved to handle prospective traffic.
[Amended 4-27-1987]
[Amended 6-13-2011]
Refer to the Lancaster Stormwater Management Bylaw that was adopted in October 2007 for the process of securing a local stormwater management permit.[1]
A. 
General approach. Storm drains, culverts, swales, detention basins, and related facilities shall be designed to permit the unimpeded flow of all natural watercourses, to endure adequate drainage at all low points along the streets, to control erosion, and to intercept stormwater runoff along streets at intervals reasonably related to the extent and grade of the areas being drained. Where determined to be appropriate by the Planning Board, stormwater shall be carried on the ground surface and recharged ("open system") rather than piped to surface water ("closed system"). Peak storm flows and runoff at the boundaries of the development in a twenty-five-year frequency storm shall be no higher following development than prior to development, unless an increase is authorized by the Planning Board, following consultation with the Conservation Commission and consideration of the ability of receiving wetlands or water bodies to absorb the increase and the consequences of providing detention capacity. In the Floodplain District, adequate drainage systems shall be provided to reduce exposure to flood hazards. Drainage systems shall be designed based on a twenty-five-year frequency storm, except that culverts shall be based on a fifty-year storm, detention basins shall be based on a one-hundred-year storm, and in a one-hundred-year storm streets shall remain passable and drainage shall not enter buildings.
[Amended 4-27-1987]
B. 
Storm drains.
(1) 
Except where drainage swales are used, catch basins will generally be required on both sides of the roadway on continuous grades at intervals of not more than 300 feet. Storm drains and culverts shall be no less than 12 inches inside diameter and shall be of greater size if required by design considerations. All drains shall have a minimum of three-foot cover, except where reinforced concrete pipe is used and there the minimum cover shall be two feet. A catch basin to manhole configuration shall be used.
[Amended 4-27-1987]
(2) 
Proper connections shall be made with any existing drains in adjacent streets or easements where they may exist and prove adequate to accommodate the drainage flow from the subdivision. If the surface water drains will discharge into adjacent existing streets, or onto adjacent properties not under the control of the applicant, the latter shall clearly indicate what course the discharge will take, and shall present to the Board evidence from the owner of the adjacent property that such discharge is permitted.
[Amended 4-27-1987]
(3) 
Subdrains or interceptor drains are required where necessary to preclude flowage of groundwater threatening to the integrity of the road surface.
(4) 
Drainage calculations shall normally assume all tributary area to be developed as zoned. Water velocities shall be between two and 10 feet per second in pipes, and not over five feet per second in swales.
C. 
Catch basins. Catch basins shall be provided with grates installed and approved as to design by the Board. Manholes shall be provided at changes in direction, and wherever there is a change in size of pipe. Not more than two catch basins may be connected in series rather than to manholes. Catch basins and manholes shall be constructed with standard concrete blocks, with brick and mortar or, if required by depth, of reinforced concrete. Catch basins shall have a three-foot deep sump.
D. 
Detention basins.
[Added 6-13-2011]
(1) 
An operations and maintenance plan must be submitted as part of the stormwater management permit application. This plan shall outline a maintenance schedule for all drainage structures, including swales and detention basins. The Planning Board may require that a maintenance bond, or other such instrument, be posted to insure that the ongoing maintenance is addressed.
(2) 
Invasive aquatic weeds must be removed from all new detention basins and stormwater channels for a period of one full year.
E. 
Water Resource Districts. Within Water Resource Districts as established in Chapter 220, Zoning, of the Code of the Town of Lancaster, provisions for contaminant removal shall be made employing detention basins with subsurface drains or perforated risers, oil and grit separator catch basins, or other devices where appropriate.
[1]
Editor's Note: See Ch. 170, Stormwater Control. See also Ch. 305, Stormwater Management Rules and Regulations.
A. 
Installation. All sewers, gas lines, water pipes, telephone, electricity, and CATV cable shall be installed underground before roadway base course installation.
[Amended 6-13-2011]
B. 
Water.
(1) 
Whenever feasible, the water supply shall be from a public water supply system. In such cases, the water supply system will be considered adequate only if it is capable of providing gravity service to each proposed fire hydrant with a flow of 750 gpm (gallons per minute) at 20 psi (pounds per square inch) residual pressure within single-family detached residential developments, or meeting Insurance Safety Office (ISO) requirements for other developments, and only if capable of providing gravity service to each proposed lot with static pressure of 40 psi at street grade. Where any part of any lot is at elevation 450 feet msl (mean sea level) or higher, the applicant shall submit engineering analysis documenting system adequacy.
[Amended 4-27-1987; 6-13-2011]
(2) 
If connection to a public water system is proposed but it is determined by the Board that the above standards will not be met in part or all of the subdivision for reasons beyond the reasonable responsibility of the developer, the Board may nevertheless approve the plan subject to a condition that any lot not adequately served shall not be built upon until service has been made adequate or, if sooner, 24 months have elapsed from the date of plan approval in order to allow time to remedy system deficiencies.
(3) 
Water system materials and construction shall meet the specifications of the Lancaster Board of Water Commissioners.
(4) 
Permanent dead-end water mains shall not normally be allowed. Easements shall be provided where necessary to allow for extension or looping of mains through subsequent development.
(5) 
Individual water meters shall be installed for each house.
[Added 6-13-2011]
(6) 
A waterline stub shall be installed at the time the foundation is constructed.
[Added 6-13-2011]
(7) 
Where connection to an adequate public water system is infeasible, the Planning Board shall approve a subdivision only upon its determination, following consultation with the Fire Department, that reserved access to a fire pond or other provisions will adequately provide for fire safety, and upon its determination, following consultation with the Board of Health, that wells on each lot are likely to be able to provide a sustained yield of five gallons per minute with water quality meeting the Department of Environmental Quality Engineering's "Drinking Water Regulations of Massachusetts," as amended from time to time. One test well may be required of the applicant per 10 potential lots, or the Planning Board's determination may be based upon the written statement of a hydrogeologist following his analysis of well records on nearby premises, subsurface conditions, and the effects of this subdivision and other potential sources of contamination.
Upon recommendation of the Fire Department, the Planning Board may require the installation of a cistern(s) as a source of water for fire suppression. Such requirement may specify the number, size and type of cistern to be installed for each subdivision plan, and may also specify the location and distance from the nearest water line. Maintenance of the cistern(s) will be the responsibility of the developer or the homeowners' association, until such time that the road is accepted by the Town.
[Added 6-13-2011]
C. 
Sewerage.
[Amended 4-27-1987]
(1) 
Provisions shall be made for Lancaster Sewer District sewerage to serve all subdivisions that both lie within the district and can feasibly be serviced by the district system. Service will be determined to be infeasible only if requiring of the developer as much or more off-site expenditure to make connection as required for on-site system development, including house connections, or if requiring unobtainable easements, or for other extraordinary reason. The expense of such connection shall be borne by the applicant according to the Rules and Regulations of the Lancaster Sewer District Commissioners.
(2) 
Design and construction of a district public sewage collection system(s), along with fees for engineering/legal review, shall be as required by the Rules and Regulations of the Lancaster Sewer District Commissioners.
(3) 
No subdivision that shows connection to district public sewerage shall be approved by the Planning Board unless the lots shown to be so connected lie within the Lancaster Sewer District, or were voted into the district according to the Rules and Regulations of the Lancaster Sewer District Commissioners, prior to such approval.
D. 
Floodplain District. In the Floodplain District, all public utilities and facilities such as gas, electrical, and water systems shall be located and constructed to minimize or eliminate flood damage.
A. 
Sidewalks.
(1) 
The Planning Board may require sidewalks on one or both sides of the street if it is felt that the public safety will be served by their installation. Normally, no sidewalk will be required on lanes.
(2) 
All materials shall be removed for the full width of the sidewalk to a subgrade 10 inches below the finished grade as shown on the cross section; and all soft spots and other undesirable material below such subgrade shall be replaced with a good binding material and rolled. This excavated area then shall be filled with eight inches of good quality gravel and rolled with a pitch toward the curb of 3/8 inch to the foot. Two inches of compacted bituminous concrete shall be placed; provided, however, that if a granolithic surface is desired and/or specified by the Board, specifications of the Massachusetts Department of Public Works shall be complied with.
(3) 
Wheelchair ramps shall be provided at all intersections of sidewalks and streets, and elsewhere as appropriate.
B. 
Shoulders. Shoulders shall be at least three feet wide, pitched towards the curb or swale at between 3/8 inch and two inches per foot. The shoulder shall have an eight-inch gravel foundation, and four inches of topsoil (after rolling).
C. 
Lighting.
[Added 6-13-2011]
(1) 
Streetlights shall be installed at every major intersection in the subdivision plan. Refer to the Lighting Section in the Lancaster Zoning Bylaws[1] for design standards for streetlights and illumination.
[1]
Editor's Note: See Ch. 220, Zoning.
(2) 
The Planning Board may also require that individual pole lights be installed at each house site.
D. 
Plantings.
(1) 
Unpaved areas within the right-of-way which have been stripped by the construction shall be graded to meet the adjoining property with a slope of not more than one foot vertical to two feet horizontal in cut or one foot vertical to three feet horizontal in fill. Those areas shall be covered with at least five inches of good quality topsoil and thickly seeded with perennial grasses or other planting materials approved by the Board.
(2) 
Suitable existing trees within the right-of-way, if larger than a four-inch caliper and located outside the shoulders, shall be preserved. Trees to be retained shall not have grade changed over their root areas more than 12 inches. Where suitable trees do not exist at intervals of less than 40 feet on each side of the street, they shall be provided by the developer.
(3) 
Trees to be planted shall be well-branched, nursery-grown stock at least 2.5 inches trunk diameter at four feet above the ground, and shall be free of injury, harmful insects, and diseases. Such species will be native to the region and in no instance shall be an exotic or invasive species.
[Amended 6-13-2011]
(4) 
New plantings shall be guaranteed by the developer for a period of two growing seasons, and the subdivision security shall reflect this requirement.
[Amended 6-13-2011]
E. 
Street signs. As soon as a street is paved, street signs conforming to those placed by the Town shall be erected at each end of the street. The word "Private" shall be lettered on a separate sign placed under the street sign. This separate sign shall be removed when the street is accepted by the Town.
F. 
Monuments.
(1) 
Monuments shall be installed at all street intersections; at all points of change in direction of curvature of the streets; at each lot corner along the street; and as necessary to locate any easements to be deeded to the Town.
(2) 
Monuments must be granite or reinforced concrete and set to a depth of not less than four feet below finished grade and flush with finished grade. Reference points are to be drilled in the top of each monument.
(3) 
A certified monument plan must be submitted prior to the issuance of a building permit.
[Added 6-13-2011]
G. 
Guardrails. Guardrails of a type approved by the Board shall be installed wherever grade falls more than five feet below center-line grade within 20 feet of the paved area of any street, or in other cases where the Planning Board determines that safety warrants installation.
[Amended 4-27-1987]
A. 
Open space.
(1) 
The Planning Board may require the plan to show a potential park or parks suitably located for recreational purposes or for providing light and air. The park or parks shall not be unreasonable in area in relation to the land being subdivided and to the prospective uses of the land, normally not exceeding 5% of plan area. It shall connect to abutting public open space, if possible.
[Amended 6-13-2011]
(2) 
The Board may by appropriate endorsement on the plan require that no building be erected upon such park or parks for a period of not more than three years without its approval. This land shall be made available for purchase by the Town. Failure to purchase within three years shall free the owners from restrictions.
(3) 
The Planning Board may request the plan to show potential open space for the recreational enjoyment and nature appreciation for Town residents and to protect natural landscape features, plans and wildlife. Where possible, the proposed open space should connect to other conservation land and take into consideration natural features unique to the landscape. Open space should consist of upland habitat and not consist of the non-buildable wetlands portion of the property.
[Added 6-13-2011]
(4) 
An alternative method to appropriating open space can be found in the Flexible Development Section[1] of the Lancaster Zoning Bylaws. A forty-percent requirement for open space is mandated in this type of development model.
[Added 6-13-2011]
[1]
Editor's Note: See § 220-15, Flexible development.
(5) 
In lieu of the above open space options, the Planning Board may accept a contribution towards the funding of off-site recreational or open space opportunities for the enjoyment of the Town's citizens.
[Added 6-13-2011]
B. 
Earth removal. Any area within the subdivision used for the extraction of gravel or borrow shall be regraded, loamed, and in sod before final release is granted by the Planning Board. Where earth removal is associated with the construction of the subdivision, the developer shall provide the amount of earth to be removed and disposition of such earth, the method of removal, and the means proposed to prevent erosion and sedimentation to protect adjacent areas.
[Amended 6-13-2011]
C. 
Steep slopes.
[Added 6-13-2011]
(1) 
The purposes of this subsection shall be to preserve and enhance the landscape by encouraging the maximum retention of natural topographic features, such as natural drainage swales, streams, slopes, ridgelines, rock outcroppings, vistas, natural plant formation and trees; to minimize the effects of grading to insure that the natural character of steep slopes is retained; to minimize water runoff and soil erosion problems incurred in grading of steep slopes; and to encourage innovative architectural, landscaping, circulation and site design. For the purposes of this subsection, the term "natural" shall be defined as the condition of the ground surface as it exists at the time a subdivision or development is proposed, including any man-made alterations such as grading, excavation or filling which may have occurred prior to the time such subdivision or development is submitted. No land intended for subdivision or development may be altered so as to circumvent this regulation.
(2) 
The slope of land at any point, stated as a percentage, shall be defined as the change in elevation over a horizontal distance measured perpendicular to the contours divided by the distance over which the change occurs multiplied by one hundred.
Slope = (Change in elevation/horizontal distance measured perpendicular to contours) x 100
(3) 
All natural slopes exceeding 35% over a horizontal distance of 10 feet as measured perpendicular to the contour on a tract or parcel of land intended or proposed for subdivision or on a building lot are protected and shall remain undisturbed.
(4) 
The Planning Board may grant a waiver from the provisions of this subsection if, in the Board's opinion, the proposal satisfies the purposes set forth above.
D. 
Maintenance. The entire area within the right-of-way shall be properly maintained by the developer until accepted by the Town. Immediately prior to such acceptance, all catch basins shall be cleaned, streets swept, and the remainder of the right-of-way and any other areas to be deeded to the Town shall be cleared, mowed, or otherwise put in first-class order. Snow removal and sanding of the streets shall be the responsibility of the developer until such acceptance. Any fences erected in the common area or the right-of-way shall be maintained by the developer or the homeowners' association in perpetuity.
[Amended 6-13-2011]
E. 
Cleaning up. Before sale of a lot, the subdivider shall clean up any debris thereon caused by construction of public improvements.
F. 
Easements.
(1) 
Easements for utilities across lots or centered on rear of side lot lines shall be provided where necessary and shall be at least 20 feet wide.
(2) 
Where a subdivision is traversed by a watercourse, drainageway, channel or stream, there shall be provided a stormwater easement or drainage right-of-way of adequate width to conform substantially to the lines of such watercourse, drainageway, channel or stream and to provide for construction or other necessary purposes (such as maintenance).
G. 
Protection of natural features. Due regard shall be shown for all natural features such as large trees, watercourses, scenic points, historic spots, and similar community assets, which, if preserved, will add attractiveness and value to the subdivision.
H. 
Record plans. Upon completion of construction, and before release of the performance guarantee, the subdivider shall have prepared and submitted record plans at one inch equals 40 feet, which shall indicate the actual location of all of the following:
(1) 
Street lines;
(2) 
Traveled way edges;
(3) 
Path locations;
(4) 
Permanent monuments;
(5) 
Locations, slopes, and inverts of the required utilities and drainage;
(6) 
Locations of any other underground utilities, such as electricity, telephone lines, and streetlighting.
I. 
Certification. A professional civil engineer retained by the developer shall certify that all construction was executed in conformance with the subdivision regulations and with all requirements agreed upon as a condition to plan approval.
J. 
Special studies. If warranted by unusual conditions of location, services, geology, or design, studies beyond those required under § 301-8, Definitive plan, Subsection A, Submittals, may be necessary in order to make sound decisions regarding approval or modification of the definitive plan. In such cases, such studies shall be prepared by a consultant agency or firm agreed to by the applicant and the Planning Board, retained at the expense of the applicant.
[Added 4-27-1987]
A. 
Request for release. Upon completion of the foregoing requirements, security for the performance of which was given by bond, deposit, or covenant, or upon the performance of any covenant, with respect to any lot, the applicant may request and agree on terms of release with said Planning Board.
B. 
Completion requirements. To assist in determining whether satisfactory completion has been made, the Planning Board shall receive properly completed inspection forms (Forms H and I)[1] from the subdivider. The required improvements will not be considered complete until:
[Amended 6-13-2011]
(1) 
The subdivider has filed with the Planning Board a record plan as required at § 301-14H.
[Amended 4-27-1987]
(2) 
The areas to be accepted by the Town have gone through a winter and succeeding spring without substantial deterioration.
[1]
Editor's Note: Said forms are included at the end of this chapter.