§ 221-1. Purpose.
A. These regulations are adopted in accordance with New Hampshire Revised Statutes Annotated 674:35 - 42 to provide against such scattered or premature subdivision of land as would involve danger or injury to health, safety or prosperity by reason of lack of water supply, drainage, transportation, schools, fire department or other public services, or necessitate an excessive expenditure of public funds for the supply of such services.
B. These regulations are to provide for the development of the municipality and its environs; for the proper arrangement and coordination of streets within subdivisions in relation to existing or other planned streets; for open space of adequate proportions; for suitably located streets within sufficient width to accommodate existing and prospective traffic; for adequate lighting; and for access of emergency equipment.
C. These regulations provide that the land indicated on plats submitted shall be of such character that it can be used for building purposes unless otherwise specified and generally shall include provisions which will tend to create conditions favorable to health, safety, convenience and prosperity.
§ 221-2. Statutory authority.
Pursuant to the authority vested in the Fitzwilliam Planning Board by the voters of the Town of Fitzwilliam by vote of the Town Meeting, March 10, 1970, and in accordance with the provisions of RSA 674:35 - 42, the Fitzwilliam Planning Board adopts the following regulations governing the subdivision of land in the Town of Fitzwilliam, New Hampshire.
Administration and Enforcement
§ 221-3. Interpretation of requirements.
In matters of judgment or interpretation of the requirements set forth in these regulations, the opinion of the Planning Board and, where appropriate, the Planning Board Attorney shall prevail.
§ 221-4. Copies of regulations to be filed with Clerk and Register of Deeds.
No subdivision regulations or amendment or exception thereto, adopted under RSA 674:35 - 42, shall he legal and have any force and effect until copies of such, certified by a majority of the members of the Planning Board, are filed with the Town Clerk and the Cheshire County Register of Deeds.
§ 221-5. Amendments.
These regulations may be amended or rescinded by the Board, but only following a public hearing on the proposed change (RSA 675:6). The Chairman or Secretary of the Board shall transmit a record of any change so authorized to the Registry of Deeds of Cheshire County.
§ 221-6. Subdivisions substantially in conformity.
Where strict conformity to the subdivision regulations would cause undue hardship or injustice to the owner of the land, a subdivision substantially in conformity with the subdivision regulations may be approved by the Board, provided that the spirit of the subdivision regulations and public convenience and welfare will not be adversely affected.
§ 221-7. Severability.
If any section, provision, portion, clause or phrase of these regulations shall be held to be invalid or unconstitutional by any court of competent authority, such holding shall not affect, impair or invalidate any other section, clause, provision, portion or phrase of this chapter.
§ 221-8. Penalties for offenses.
Any owner or agent of the owner of land located within a subdivision who transfers or sells any land within the subdivision before the final layout has been approved by the Planning Board and recorded or filed in the office of the appropriate Register of Deeds shall forfeit and pay a penalty of five hundred dollars ($500.) for each lot or parcel so transferred or sold; and the description by metes and bounds in the instrument of transfer or other document used in the process of selling or transferring shall not exempt the transaction from such penalties. The town, through its Solicitor or other official designated by its Selectmen, may enjoin such transfer or sale or agreement and may recover said penalty by civil action.
§ 221-9. Enforcement.
These regulations shall be enforced by the Board of Selectmen by acting by and through their duly authorized representatives.
§ 221-10. Appeals.
Any person aggrieved by an official action of the Board may appeal to the Superior Court as provided by RSA 677:15.
§ 221-12. Definitions.
As used in this chapter, the following terms shall have the meanings indicated:
ABUTTER - The current owner of record of any property which is located in New Hampshire and adjoins or is directly across the street or stream from the land under consideration by the Planning Board. For purpose of receiving testimony only, and not for purposes of notification, the term "abutter" shall include any person who is able to demonstrate that his land will be directly affected by the proposal under consideration.
APPLICANT - The owner of any land which is proposed to be subdivided or their assigned representative.
BOARD or PLANNING BOARD - The Planning Board of the Town of Fitzwilliam.
BOND - Any form of security, including cash deposit, security bond, collateral, property or instrument of credit, in an amount and form satisfactory to the Planning Board.
DEVELOPER - The owner, or his agent, of land which is proposed to be subdivided.
EASEMENT - The authorization by a property owner for the use by another, and for a specific purpose, of any designated part of his property.
FRONTAGE - That side of a lot abutting on a street or way or body of water and ordinarily regarded as the front of the lot.
GRADE - The slope of a lot, road, street or other public way specified in percentage terms.
LOT - A tract, plot or portion of a subdivision or other parcel of land intended as a unit for the purpose, whether immediate or future, of transfer of ownership and/or occupancy by one (1) principal structure or use and its accessory structures or uses.
LOT LINE ADJUSTMENT - To establish a property line between two (2) or more adjacent and agreeing owners which does not create buildable lots.
MAJOR SUBDIVISION - All subdivisions not classified as minor subdivisions, including but not limited to subdivisions of four (4) or more lots, or any size subdivision requiring any new street or extension of the municipal utilities or the creation of any public improvements.
MASTER PLAN - A comprehensive plan for development of the local community, prepared and adopted by the local Planning Board, pursuant to state law, and including any part of such plan separately adopted and any amendment to such plan, or parts thereof.
MINOR SUBDIVISION - Any subdivision containing not more than three (3) lots fronting on any existing street, not involving any new street or road, or the extension of municipal improvements and not adversely affecting the remainder of the parcel or adjoining property.
OFFICIAL MAP - The map established by the Planning Board pursuant to law showing the streets, highways, parks and drainage systems and setback lines theretofor laid out, adopted and established by law, and any amendments or additions thereto adopted by the Planning Board as additions thereto resulting from the approval of subdivision plats by the Planning Board and the subsequent filing of such approved plats.
RIGHT-OF-WAY - All town, state and federal highways and rights-of-way dedicated to public use.
SETBACK - The distance between a building and the near- est street line or property line.
SUBDIVISION - The division of a lot, tract or parcel of land into two (2) or more lots, plats, sites or other division of land for the purpose, whether immediate or future, of offer, sale, rent, lease, condominium conveyance or building development.
WETLANDS - Those areas identified and delineated as poorly drained or very poorly drained soils by the National Cooperative Soil Survey.
Procedure for Acting on Plats
§ 221-13. General procedure.
Whenever any subdivision of land is proposed, before any construction, land clearing or building development is begun, before any permit for the erection of any building in such proposed subdivision shall be granted and before any subdivision plat may be filed in the office of the Register of Deeds of Cheshire County, the subdivider or his authorized agent, designated in writing, shall apply for and secure approval of such proposed subdivision in accordance with the following procedure.
§ 221-14. Preliminary consultation and review.
A. The subdivider may appear at a regular meeting of the Planning Board to discuss a proposal in conceptual form and in general terms. Such preliminary consultations shall be informal and directed toward:
(1) Reviewing the basic concepts of the proposal.
(2) Reviewing the proposal with regard to the Town Master Plan and Zoning Ordinance.
(3) Reviewing the town's subdivision regulations as they may apply to this proposal and determination of the proposal as a major or minor subdivision.
(4) Guiding the subdivider relative to necessary state and local requirements and forms.
B. Preliminary consultation and review shall not bind the subdivider or the Board; no public notice is required; no fees shall be charged; and no time limit for acting on the subdivision shall apply.
C. An application for subdivision and a copy of the subdivision regulations may be presented to the subdivider at this time.
221-15. Preliminary layout.
A. The subdivider may file a preliminary layout with the Board or agent of the Board to be submitted fifteen (15) days prior to a regular meeting of the Board. The layout shall include location of property lines and their approximate dimensions, existing easements, buildings, watercourses, ponds or standing water, general topography, site of test pits, soil designations and other essential factors.
B. The Board shall notify the abutters of this meeting, but a public hearing is not required, the time limit for acting on subdivision shall not apply, and it shall not bind the subdivider or the Board.
C. The Board may decide to conduct a site inspection at the time or after the completed application is submitted. The inspection is to be at such time when the site is free of snow cover unless otherwise determined by the Board.
§ 221-16. Completed application.
A. A completed application must be filed fifteen (15) days prior to the regular meeting of the Board. The application shall include a list of abutters with mailing addresses and a check to cover the application fee and the cost of mailing to the abutters.
B. The preliminary layout shall be submitted in triplicate and must be presented at a scale of not more than one hundred (100) feet to the inch [preferred scale is fifty (50) feet to the inch] and at a vertical scale of not more than forty (40) feet to the inch. The overall sheet size shall be either eight and one- half by eleven (81/2 x 11), eleven by seventeen (11 x 17), seventeen by twenty-two (17 x 22) or twenty-two by thirty-four (22 x 34) inches. Separate sheets shall be numbered, showing their relationship to each other. A margin of at least one (1) inch shall be provided outside ruled border lines on three (3) sides and at least two (2) inches along the left side for binding. The layout shall include the following:
(1) Proposed subdivision name, address of owner of record, name of subdivider and engineer or surveyor,
date, North point and scale.
(2) Names of owners of record of abutting properties, abutting subdivision names, streets, easements,
setbacks, alleys, parks and public open spaces and similar facts regarding abutting property.
(3) Location of property lines and their approximate dimensions, existing easements, buildings,
watercourses, ponds or standing water, rock ledges and other essential features.
(4) Existing water rnains, sewer, culverts, drains and proposed connections or alternative means of
providing water supply and disposal of sewage and surface drainage. Location of each percolation
test hole and the results and adequate information with respect to soil conditions to show that, with
the lot sizes as proposed, a water well, if required, and a septic tank, if required, can be put on the lot
without contamination of the water supply on such lot or on other property.
(5) Location, name and widths of existing and proposed streets and highways and their grades and profiles
and the elevations of sufficient points on the property to indicate general topography.
(6) Where the topography is such as to make difficult the inclusions of any facilities mentioned above,
within the public area as laid out, the preliminary layout shall show the boundaries of proposed permanent easements over or under private property.
(7) Location of all parcels of land proposed to be dedicated to public use and the conditions of such
dedication and a copy of such private restrictions as are intended to cover part or all of the tract.
(8) Preliminary designs of any bridges or culverts which may be required.
C. Applications may be disapproved by the Board without public hearing on grounds of failure of the subdivider
to supply information required by these regulations.
§ 221-17. Notification of hearing.
Notification of the filing of a completed application shall be given by the Board to the abutters and the subdivider by certified mail, return receipt requested, mailed at least ten (10) days prior to the date of the submission of the completed application to the Board at a regular meeting. At the same time, the notice shall be posted in two (2) public places in the town or shall be published in a newspaper of general circulation. The notice shall give the date, time and place of the Board meeting at which the completed application and preliminary layout shall be formally submitted to the Board and shall include a general description of the proposal which is the subject of the application and shall identify the subdivider and location of the proposed subdivision.
§ 221-18. Final plat
The final plat, as submitted for approval and subsequent recording, shall be in triplicate with one (1) copy on Mylar for recording with the Registry of Deeds of Cheshire County. The final plat shall include all data required for preliminary layout submission and all adjustments required by the Planning Board.
§ 221-19. Consideration of completed application and final plat.
A. The Board shall consider the completed application within thirty (30) days of its submission. The Board shall act to approve or disapprove the completed application within ninety (90) days after submission.
B. Approval of the final plat shall be certified by written endorsement on the final plat and signed by the Chairman and Secretary of the Board. The Chairman or Secretary of the Board shall transmit a copy of the final plat with such approval endorsed in writing thereon to the Register of Deeds of Cheshire County. The subdivider shall be responsible for the payment of all recording fees. In case of disapproval of any plat submitted, the grounds for such disapproval shall be adequately stated in the records of the Planning Board and written notice given to the subdivider.
C. If the Planning Board has not obtained an extension and has not taken action to approve or disapprove the completed application within ninety (90) days of its acceptance, the subdivider may obtain from the Selectmen an order directing the Board to act within fifteen (15) days. Failure of the Planning Board to act upon such order of the Selectmen shall constitute grounds for the applicant to petition the Superior Court.
D. The Planning Board shall conduct an on-site inspection to see that improvements are completed and boundary markers are in place.
§ 221-20. Expenses and fees.
A. All costs of notice shall be paid in advance by the applicant Failure to pay such costs shall constitute valid grounds for the Board to disapprove the plat without a public hearing.
B. A nonrefundable application fee of twenty-five dollars ($25.) shall be paid for any subdivision regardless of size.
C. All expenses incurred by the Town of Fitzwilliam and its Planning Board in processing an application for subdivision approval, including the expenses of the Board Engineer and Board Attorney, shall be borne by the applicant. An estimate of said expenses may be given to the applicant at any time, and payment may be required prior to the scheduling of a public hearing on the proposed subdivision.
Schedule of Fees
INSERT FEES HERE
§ 221-21. Compliance with other laws; survey to be provided.
A. All subdivision plats shall comply with the following laws, rules and regulations:
(1) All applicable statutory provisions.
(2) The Town Zoning Ordinance, building codes and all other applicable laws of the town.
(3) The Master Plan, Official Map and other officially adopted plans of the town.
(4) Any regulations of the New Hampshire Water Supply and Pollution Control Commission, New
Hampshire Water Resources Board, New Hampshire Department of Public Works and Highways and other appropriate state agencies.
B. The Board shall require the developer to provide it with a transit survey where, in the Board's opinion, accuracy normally involved in such a survey is necessary to determine that the proposed plat meets all applicable requirements and conditions contained in these regulations and, if so, show error of closure.
§ 221-22. Character of land.
Land of such character that it cannot he safely used for building purposes because of exceptional danger to health and peril from fire, flood or other menace shall not be platted for occupancy nor for such other uses as may increase danger to health, life or property or aggravate flood hazard until appropriate measures are taken by the subdivider to eliminate such hazards. No natural drainageway shall be obstructed unless adequate means are taken to provide for the runoff for peak conditions. The area of buildable land must be of such size as to meet the specified requirements in the land ordinances.
§ 221-23. Scattered or premature development.
A. Purpose. The purpose of this section is to provide against scattered or premature subdivision of land.
B. Causes. The following items shall be considered in determining whether the proposed subdivision is scattered
or premature. The subdivider may be required to have studies made under guidelines established by the
Planning Board to determine the effect that the proposed subdivision may have:
(1) Distance from nearest elementary school.
(2) Capacity of school system and effect on school bus transportation.
(3) Adequacy of access street(s) and/or sidewalks.
(4) Adequacy of water supply for domestic and fire fighting purposes, including available water holes
suitable for pumping.
(5) Potential health problems due to on-site sewage systems and inadequate water supply.
(6) Potential fire protection problems due to location and/or special conditions relative to type of use.
(7) Potential special policing problems.
(8) Potential drainage problems both on the site and downstream.
(9) Necessitating excessive expenditure of public funds.
(10) Other potential problems within the meaning of the purpose of this section as stated in Subsection A.
C. Improvements. If it is determined by the Planning Board that the proposed subdivision is scattered or premature unless special on and off-site improvements are made, the Planning Board may require the subdivider to make said improvement prior to, or as a condition of, approval of the subdivision. These improvements may consist of, but need not be limited to, the following:
1) Improve any access street to the subdivision to the appropriate street standards if such access would
otherwise be inadequate, provided that the town owns or provides the right-of-way.
(2) Extend the public water and/or sewer system(s) if either or both are within three thousand (3,000) feet
of the subdivision, provided that the subdivision serves or potentially can serve twelve (12) or more
(3) Build or reconstruct sidewalks on any access streets where potential increase in pedestrian traffic will
occur, provided that the town owns or provides the right-of-way.
(4) Construct static water supplies (fire ponds) with dry hydrants for fire protection. Provide traffic signals
at intersection and rebuild intersection in the immediate area of the proposed subdivision if such
intersection would otherwise be inadequate, provided that the town owns or provides the right-of-way,
or give to the town easements or land for rights-of-way.
D. Phasing of subdivisions. As an alternative to making the studies and/or improvements as required by this
section, the subdivider may propose to develop his subdivision in stages.
This may be approved by the Planning Board if the town and/ or school district have plans to make public improvements and a schedule to implement these improvements so that the various stages of the subdivision will not then take place until the relative public improvements are scheduled. If improvements involve roadways, the Board can require bonding to cover improvements.
221-24. Lot layout and improvements.
A. Lot size, width, depth, shape and orientation shall be appropriate for the location of the subdivision and use contemplated, with particular attention to purity of water and waste disposal.
B. Lots shall be laid out and graded to eliminate flood or stagnant water pools. No water shall be permitted to run across the street on the surface but shall be directed into catch basins, if available, or otherwise into ditches, and shall be piped underground in a pipe of not less than twelve (12) inches in diameter, or such size as may be deemed necessary by the Road Agent.
C. It shall be the responsibility of the subdivider to provide the Board with adequate information to prove that the area of each lot is adequate to permit the installation and operation of individual sewage disposal system (septic tank and leach field or dry well, but not a cesspool), except where public sewer systems are available, and to prove that the area of each lot is adequate to permit the installation and operation of individual on-site water systems, except where a public or common water system is available. Whenever required by the Board in order to establish the adequacy of the sew-age disposal system, a series of percolation tests shall be made in the subdivision in accordance with the New Hampshire Water Supply and Pollution Control Manual titled "Guide for the
Design, Operation and Maintenance of Small Sewage Disposal systems."
D. Areas set aside for parks and playgrounds to be dedicated or to be reserved for the common use of all property owners by a covenant in the deed, whether or not required by the Board, shall be of reasonable size and character for neighborhood playgrounds or other recreational use.
E. The preliminary plat or layout shall show the boundaries of proposed permanent easements for utilities over or on the property wherever topography permits, and the total width of such easements shall not be less than twenty (20) feet centered on the rear lot line with ten (10) feet provided from each lot. Such easements shall have satisfactory access to existing or proposed public ways. Watercourses proposed for public control shall have a permanent easement of not less than twenty (20) feet.
F. All proposed drainage facilities and culverts shall be installed. Natural watercourses shall be cleaned and increased in size where necessary to take care of storm runoff. Drainage swales below center-line grade shall be constructed in the street right-of-way on both sides of the paved roadway.
G. Monuments constructed of concrete or stone at least four (4) inches wide on the top and at least thirty (30) inches long shall be set at all block corners and iron pins or equivalent markers at all lot corners. Two (2) bench marks of the same description as the monuments shall be set at opposite ends of the subdivision whose tops are at an even foot in reference to the United States Geological Survey datum plan where practical or of an assumed datum where the preceding is not feasible.
H. In examining and passing upon a proposed subdivision, the Board may make recommendations to the subdivider relating to earth movement and retention of natural cover in order to preserve the natural beauty of Fitzwilliarn and its environment.
I. Performance bond to include lot improvements or surety shall include an amount to guaranty completion of all requirements contained in the above subsections of the regulations, including but not limited to soil preservation, final grading, lot drainage and all other lot improvements required by the Planning Board.
§ 221-25. Street layout.
A. The roadway shall be graded to the final grade in accordance with the profile and cross section submitted.
B. Streets shall be logically related to the topography so as to produce usable lots, reasonable grades and safe intersections in appropriate relation to the proposed use of the land to be served by such streets; where practicable, lots shall be graded toward the ditch line of the streets; where not practicable, adequate provisions shall be made to control the drainage of each lot by an adequate stormwater system, subject to approval of the Road Agent or Town Engineer.
C. The arrangement of streets in the subdivision shall provide for the continuation of the principal streets in adjoining subdivisions or for their proper projection when adjoining property is not subdivided and shall be of a width at least as great as that of such existing connecting streets, but in no case less than that required under Subsection D below.
D. No street or highway right-of-way shall be less than fifty (50) feet in width and may be required to be more if a greater street width is warranted in the opinion of the Board. Existing streets shall be widened as if they were new streets, with one- half (1/2) of the additional widening to be required on each side. In addition, the travel surface of the road is required to be thirty (30) feet. Streets entering opposite sides of another street shall be laid out either directly opposite one another or with a minimum offset of one hundred twenty-five (125) feet between their center lines.
E. Except where future connections may be possible, dead-end streets shall not, in general, exceed six hundred (600) feet in length and shall be provided with a turnaround roadway at the closed end with a minimum radius of sixty (60) feet from the center to the outside edge of the right-of-way.
F. No horizontal curves shall have a center-line radius of less than one hundred fifty (150) feet, except turnarounds on a dead-end street. For changes in grade exceeding three percent (3%), a vertical curve shall be provided ensuring a minimum sight distance of one hundred fifty (150) feet.
G. Grades of all streets shall conform in general to the terrain and shall so far as practicable not exceed ten percent (10%). No street shall have a grade of less than one percent (1%).
H. The width of blocks shall not be less than four hundred (400) feet, nor shall the length exceed one thousand two hundred (1,200) feet.
I. Intersecting property lines at street intersections shall be joined by a curve of at least a twenty-foot radius.
J. Streets shall be laid out or shall intersect as nearly as possible at right angles. No street shall intersect another with an angle of less than sixty degrees (60'). A clear line of sight of at least one hundred (100) feet shall be provided at all intersections at an eye height of three and seventy-five hundredths (3.75) feet.
K. Streets which join or are in alignment with streets abutting on neighborhood properties shall bear the same name. Names of new streets shall not duplicate nor bear a phonetic resemblance to the names of existing streets within the Town of Fitzwilliam and shall be subject to the final approval of the Board of Selectmen.
221-26. Street construction and improvements.
A. Road construction, including pavement and drainage facilities, curbs and sidewalks, when required, shall be installed and constructed with standard specifications and in all cases must be constructed under the supervision of the Road Agent.
B. The roadway shall be constructed in accordance with the following specifications:
(1) All topsoil, loam, clay, muck and stumps and other improper road foundation material must be removed from the limits of the roadbed to a depth of at least twelve (12) inches. Topsoil shall be removed from areas that will be filled. Where loam or improper road foundation material exceeds twelve (12) inches in depth, such material must be excavated and replaced with bank-run gravel or broken rock.
(2) The subbase course shall consist of bank-run gravel, free from loam or organic matter.
(3) The base course shall consist of fine gravel, not to exceed three (3) inches in diameter.
(4) The base course shall consist of one (1) application of primer (SC 1-3 or equal road tar) applied at the rate of three-fourths (3/4) gallon per square yard and one (1) application of MC 2-4 (or its road tar equivalent) applied at the rate of one-half (%) gallon per square yard. The surface shall be sanded with clean sharp sand following each coating of oil.
SUBDIVISION OF LAND
NEW HAMPSHIRE DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS
SUGGESTED MINIMUM DESIGN STANDARDS FOR RURAL SUBDIVISION STREETS
These are suggested minimum design standards to be followed in the absence of local subdivision controls. Every effort should be made to exceed these minimums wherever possible. The circumstances of topography and other physical factors may require an occasional exception to these standards; however, the Selectmen should exercise reasonable judgment before granting such variances.
1. GENERAL STREET PLAN Approval of the general development street plan should be required before allowing construction of small integral phases of the plan.
2. STREET LAYOUT Streets shall be laid out so as to intersect at right angles, as nearly as possible, and no street shall intersect another at less than sixty degrees (60'). Property lines at street intersections shall be rounded to provide for a property-line radius of not less then twenty (20) feet. Streets shall be continuous and in alignment with existing streets as far as possible.
3. DEAD-END STREETS Dead-end streets, designed to be so permanently, shall not be longer than five hundred (500) feet and shall be provided with a turnaround having an outside roadway diameter of at least one hundred (100) feet.
4. STREET NAMES All streets shall be named without duplication with other streets in town.
5. RIGHT-OF-WAY The minimum width of a right-of-way shall be fifty (50) feet. A greater width may be required for arterial and collector streets.
6. HIGHWAY RIGHT-OF-WAY BOUNDS Highway bounds, of a type approved by the Board of Selectmen, shall be installed at all intersections of streets, at all points of change in direction and at any other points the Board may deem necessary to designate the street lines.
7. ALIGNMENT No street shall be constructed with a curvature of less than a two-hundred-fifty-foot radius [twenty-two and nine- tenths degrees (22.9')].
8. GRADES Street grades. where feasible, shall not exceed ten percent (10%) nor shall be any less than five-tenths percent (0.5%).
9. CONSTRUCTION SUPERVISION Construction of the road- way, drainage facilities, sidewalks, curbs and all other elements of the highway must be done under the supervision of, and with the approval of, the Board of Selectmen.
10. CLEARING The entire area of each street shall be cleared of all stumps, brush, roots, boulders and like material and all trees not intended for preservation.
11. SUBGRADE PREPARATION All loam and other yielding material shall be removed from the roadway and replaced with suitable fill material. All boulders and ledge shall be removed to a uniform cross section depth of not less than twelve (12) inches below the subgrade and replaced with sand and gravel.
12. DRAINAGE Surface water shall be disposed of by means of culverts of sufficient capacity at watercourses as determined by standard hydraulic design methods and by construction of a longitudinal storm drainage system whenever required to relieve water in the ditch sections. Construction shall be in accordance with New Hampshire Standard Specifications, 1969, Sections 603 and 604.
13. GRAVEL BASE All streets shall be constructed with a mini- mum of twelve (12) inches of gravel per New Hampshire Standard Specifications, 1969, Section 304.
14. ASPHALT SURFACE The asphalt surface may be a bituminous surface treatment, Specification Section 410, or hot bituminous pavement, Section 403, as required by the Selectmen. The minimum width should be twenty (20) feet for up to three hundred (300) vehicles per day, twenty-two (22) feet for three hundred (300) to six hundred (600) vehicles per day and twenty-four (24) feet for over six hundred (600) vehicles. A forty-four-foot wide pavement may be required in areas where on-street parking is expected. Angle parking shall not be allowed.
15. GRAVEL SURFACE In unusual cases of low traffic volumes where the Selectmen feels an asphalt surface is not required, the total usable roadway width shall be a minimum of twenty-eight (28) feet so that the ultimate design may be a twenty-foot asphalt surface with four-foot gravel shoulders.
16. BRIDGES On stream crossings of ten (10) feet or more span, the structure shall be designed to H15-S20 loading (American Association of State Highway and Transportation Officials specifications). The minimum roadway width shall be twenty-four (24) feet.
17. GRAVEL SHOULDERS A four-foot gravel shoulder, equal to the base course depth, shall be constructed adjacent to all twenty- , twenty-two- and twenty-four-foot asphalt surfaces.
18. SIDEWALKS Sidewalks of two-inch-thick asphalt, on a four- inch gravel base, not less than four (4) feet in width and no closer than twenty-two (22) feet to the street center line, shall be constructed on one or both sides of the street when, in the opinion of the Board, such sidewalks are necessary.
19. EROSION CONTROL Erosion shall be controlled by placing mulch or matting on all surfaces disturbed by construction of the roadway and on all other surfaces where there is danger of eroded material being carried to the roadway area.
20. UTILITIES Utility poles should be kept close to the right-of- way line, in no case closer than the ditch line and always well back of a curb. Water and sewer mains should be constructed outside the surface area and preferably outside the ditch line.
21. SAFETY Safety is an important factor on all roadway improvements. On development roads, it may not be possible or practical to obtain obstacle-free roadsides, but every effort should be made to provide clear areas within the maintenance limits. The use of flatter slopes, the use of guardrails where necessary and the use of warning signs are other safety factors to be considered.
22. MINIMUM STANDARDS The use of more liberal values than these minimum standards is recommended. For additional guidance and design of local development roads and streets with high volumes of traffic, reference should be made to the New Hampshire Department of Public Works and Highways, Minimum Rural Highway Design Standards.