A. 
The subdivider shall install all of the improvements itemized herein unless waived, in writing, by the Board. All work done under this article shall be done under the direction of the Planning Board.
B. 
No aforementioned bond or covenant shall be released until full approval, in writing, of all work done under this article is received by the Planning Board from its designated inspector/observer.
C. 
Referenced standards.
(1) 
The Massachusetts Highway Department Standard Specifications for Highways and Bridges, latest edition, as amended, and the Supplemental Specifications to the Standard Specifications for Highways and Bridges, latest edition, as amended.
(2) 
The Massachusetts Highway Department, Construction Standards, Latest Edition, as amended.
(3) 
Typical Cross Sections (Appendix C) and Typical Details (Appendix D) of these Subdivision Rules and Regulations.[1]
[1]
Editor's Note: Appendix C and Appendix D can be obtained from the Planning Board office.
(4) 
See also the regulations of other Town of Norfolk boards, commissions, committees, and departments.
D. 
Staking prior to construction. Prior to the start of construction of any subdivision, the property shall be staked along both sides of the street right-of-way (or at an appropriate offset distance) at fifty-foot intervals. Finish grades shall be indicated on the stakes. Lot corners and any easements across lots that terminate at the street right-of-way shall also be staked. The Planning Board shall be given written notice that staking is complete at least one week prior to the start of construction.
A. 
Minimum widths and depths. The following minimum improvement standards shall be required (see Typical Cross Sections):[1]
(1) 
Minimum width requirements (in feet).
Street Classification
Right-of-Way
Paved Traveled Way
Grass Strip***
Sidewalks on Outside of Grass Strip
Residential street
40*/50**
14*/24**
1 @ 8
1 @ 13
1 @ 5
Secondary street
50*/60**
16*/26**
2 @ 7
2 @ 5
Primary street
50*/60**
16*/28**
2 @ 11
2 @ 5
Cross slope for traveled way, grass strips, and sidewalks shall be 1/4 inch per foot.
*
Based on one-way street with no on-street parking.
**
Based on two-way street with no on-street parking.
***
Includes berm, edging or curb.
(2) 
Minimum depth requirements (in inches).
(a) 
Roadways.
Street Classification
Processed Gravel
Dense Graded Crushed Stone for Base
Binder Course
Finish Course
Residential street
12
4
2 1/2
1 1/2
Secondary street
15
4
2 1/2
2
Primary street
18
4
3
2
(b) 
Sidewalks.
Street Classification
Processed Gravel
Binder Course
Finish Course
Residential street
12
1 1/2
1
Secondary street
12
1 1/2
1
Primary street
12
1 1/2
1
[1]
Editor's Note: Typical Cross Sections can be obtained from the Planning Board office.
B. 
Clearing and grubbing.
(1) 
Clearing and grubbing shall be done in accordance with the relevant provisions of Section 101 of the Massachusetts Highway Department Standard Specifications and Town of Norfolk bylaws. (See also Article 9, Earth Relocation/Removal.)
(2) 
All excavation and embankment areas shall be first cleared of all stumps, brush, roots, boulders, debris, and like materials and disposed of off-site. All loam and topsoil within the excavation/embankment areas shall be removed and stockpiled for reuse within the subdivision.
(3) 
Brush and stump disposal shall be in accordance with the most recent Board of Health and DEP policy and/or regulations.
C. 
Excavations. Excavations shall be done in accordance with the relevant provisions of Section 120, Excavation, of the Massachusetts Highway Department Standard Specifications and Town of Norfolk bylaws. When 500 cubic yards or more of earth materials are to be removed from the site or relocated within the site, an earth relocation/removal permit is required. (See also Article 9, Earth Relocation/Removal, for requirements and instructions.)
D. 
Embankments.
(1) 
Construction of all embankment fill shall be done in accordance with the relevant provisions of Sections 120, 150, and 170 of the Massachusetts Highway Department Standard Specifications and Town of Norfolk bylaws and in accordance with the procedures described herein.
(2) 
Fill material shall be approved suitable existing material obtained from on-site excavations and shall consist of solid, sound mineral aggregate. It shall be free from deleterious, organic, elastic or foreign matter and shall be adequately graded for satisfactory compaction into a stabilized soil structure.
(3) 
Embankments shall not be constructed with material from rock or boulder excavations.
(4) 
Off-site fill material shall be gravel borrow conforming to Massachusetts Highway Department Material Specification M1.03.0, Type b. A certificate of compliance indicating the gradation and source of material shall be submitted and approved prior to delivery of any material to the site.
(5) 
Fill for embankments shall be placed in uniform layers not exceeding 12 inches in loose measurement depth and compacted to not less than 95% of the maximum dry density as determined by the Standard AASHTO Test Designation T99 compaction test Method C at optimum moisture content. No fill material shall be placed, spread or compacted while the ground fill material is frozen or thawing or during inclement weather conditions. Fill material having excessive moisture content shall not be compacted until the material has been aerated by grading, harrowing or other methods to remove excessive moisture.
E. 
Gravel base.
(1) 
The subgrade shall be brought to proper grade and compacted as shown on the profiles and in accordance with the approved cross section. No gravel base shall be placed until all earthwork and utility installation work has been completed.
(2) 
Gravel for roadway base and sidewalk base shall be spread and compacted in layers not exceeding six inches in compacted measurement depth and in accordance with the approved cross section. Material shall be compacted to not less than 95% of the maximum dry density as determined by the Standard AASHTO Test Designation T99 compaction test Method C at optimum moisture content.
(3) 
Construction of gravel base and binder courses shall be done in accordance with the relevant provisions of Sections 401 and 405 of the Massachusetts Highway Department Standard Specifications except the gravel base shall be placed in layers whose compacted thickness shall not exceed six inches.
(4) 
The standard for a suitable one-foot gravel base beneath the bituminous concrete shall be Massachusetts Highway Department Material Specification M1.03.0 Type C which has a gradation of two-inch minus. A certificate of compliance indicating the gradation and source of material shall be submitted and approved prior to delivery of any material to the site. A sieve test of the materials shall be conducted with results provided prior to installation of same.
F. 
Dense-graded crushed stone for roadway base.
(1) 
Construction of all dense-graded crushed stone for roadway base shall be done in accordance with the relevant provisions of Section 402 of the Massachusetts Highway Department Standard Specifications and in accordance with the procedures described herein.
(2) 
Processed gravel for base shall conform to Massachusetts Highway Department Material Specification M2.01.7. A certificate of compliance indicating the gradation and source of material shall be submitted and approved prior to delivery of any material to the site.
(3) 
A plan showing as-built surface grades of the completed dense-graded crushed stone layer shall be submitted to the Board for approval prior to installation of the bituminous concrete binder course. This survey shall consist of obtaining center-line and both gutter elevations at fifty-foot stations. In areas where the roadway gradient and cross slope do not agree with what is shown on the contact plans, the applicant shall reconstruct and resurvey those areas until the proper gradient and/or cross slope is placed and compacted until written authorization has been obtained from the Planning Board or its engineer on the Form K.[2]
[2]
Editor's Note: Form K can be obtained from the Planning Board office.
G. 
Bituminous concrete pavement, temporary berm, sidewalks, and driveways.
(1) 
Materials and construction methods of the bituminous concrete pavement, tack coat, sidewalks, and driveways shall conform to the relevant provisions of Sections 460 and 701 of the Massachusetts Highway Department Standard Specifications and in accordance with the procedures described herein. Pavement shall be placed and compacted in two courses, binder and finish. All driveways and curb cut ramps shall slope toward the roadway and end at the roadway gutter line. (See driveway detail in "Town of Norfolk Regulations for Street Excavations," as most recently amended.) Driveways shall commence their downward slope to the roadway from the right-of-way/street line and the ramps from the sidewalk. No driveways or ramps which slope away from the roadway will be accepted. Edging or curb (as applicable) shall be continued into the driveway/ramp cut to prevent erosion at the cut. A tack coat of bituminous material shall be applied by mechanical means immediately prior to installation of top course of pavement.
(2) 
A temporary berm shall be constructed on the roadway binder course to direct stormwater runoff to the closed drainage system until a permanent curb/berm is installed. The temporary berm shall be a bituminous concrete dribble berm. At steep grades (greater than 4%) and at low points, a temporary cape cod berm shall be used.
H. 
Slant granite curbing. Sloped granite edging shall be required on both sides of all traveled ways and shall be set after the binder course is placed and before the top course is placed. A dribble berm and/or temporary cape cod berm, as appropriate, shall be installed at the time of binder course installation and shall be continuously maintained in working order until the final course of bituminous concrete is installed. Materials and construction methods shall conform to the relevant provisions of Massachusetts Highway Department Standard Specifications M9.04.2 and be in accordance with the procedures described herein. Certificates of compliance shall be required in accordance with § 325-5.17.
I. 
Curb and edging.
(1) 
Sloped granite edging shall be installed in four-foot-minimum lengths, except where shorter lengths are dictated to form a required radius. It shall be set on a compacted gravel bedding at an angle providing a four-inch reveal. The nose of the granite shall be set in a concrete base approximately six inches square, which shall abut against the binder course. The top course of paving shall cover the concrete and key the granite in place. Joints shall be mortared. Installation of the slant granite curbing shall precede the installation of the bituminous concrete binder course.
(2) 
Materials and construction methods shall conform to the relevant provisions of Section 501 of the Massachusetts Highway Department Standard Specifications and be in accordance with the procedures described herein.
J. 
Walkways.
(1) 
Width. The width of the walkway shall be four feet. Where such a walk cannot be constructed respecting the existing contours and natural features of the land such as trees, shrubs, stone walls, etc., a minimum width of three feet shall be allowed with prior written approval of the Planning Board.
(2) 
Clearing and grubbing.
(a) 
All excavation areas shall first be cleared of stumps, brush, roots, boulders, debris and like materials, which should then be disposed of off-site. All loam and topsoil within the excavation area shall be removed and stockpiled for reuse.
(b) 
The removal of all trees shall be in compliance with the Shade Tree Act and the Scenic Roads Act, where applicable.[3] Trees not protected under these Acts, if in living, viable condition and having a trunk in excess of 12 inches in diameter measured four feet above grade, shall be retained wherever possible. In addition, trees of special importance because of species or distance from other trees shall be field marked by the Planning Board or its agent, indicating in each case whether the tree should be removed or preserved.
[3]
Editor's Note: See MGL c. 87, Shade Trees, and MGL c. 40, § 15C, Scenic road designations.
(3) 
Bituminous paving. Bituminous concrete pavement for sidewalks and driveways shall be installed to conform to the relevant provisions of Sections 460 and 701 of the Massachusetts Highway Department Standard Specifications and in accordance with procedures described therein. Two courses of bituminous concrete pavement for walkways shall be installed to conform to generally accepted engineering practice.
(4) 
Grass strip. A grass strip separating the walkway from the road shall be installed wherever possible, consistent with the walkway design procedures described herein.
(5) 
Drainage. The paved surface shall be pitched a minimum of 1/4 inch per foot in the direction of existing drainage facilities to provide adequate disposal of surface water, including control of erosion, flooding, and standing water on adjacent lands.
A. 
General provisions.
(1) 
Refer also to all Board of Health regulations pertaining to drainage, and drainage design details in § 325-4.19.
(2) 
Materials and construction methods for the installation of the storm drainage system shall be in accordance with the relevant provisions of Sections 201, 220, 230, 260, and 280 of the Massachusetts Highway Department Standard Specifications, except as modified herein.
(3) 
To provide for proper drainage during the construction of all roadways, parking areas and maneuvering aisles, all utility frames (i.e., manholes, catch basins and service boxes) shall be temporarily set to the binder course surface grade. All utility frames shall be reset to finish grade just prior to the placement of the finish course of pavement. Any bituminous concrete removed to facilitate resetting shall be replaced with cement concrete. Where leaching/percolation galleys are used, a collection system with a single discharge point shall be utilized.
B. 
Frames, grates and covers. Ductile iron, ASTM A536: Manhole frames and covers shall be LeBaron Foundry Co. Catalog No. LK 110 with the word "Drain" on the cover, or "Sewer" for sanitary sewer systems, or an approved equal. Standard catch basin frames and grates shall be LeBaron Foundry Co. Catalog No. LF 248-2 or an equal approved by the Planning Board prior to installation, but in all cases the frames and covers must be manufactured in the United States of America. Cascade catch basin frames and grates shall be LeBaron Foundry Co. Catalog No. LK120D or LK121D or an equal approved by the Planning Board prior to installation, but in all cases the frames and covers must be manufactured in the United States of America. Cement concrete collars shall be placed around the castings after the final setting and as directed. Bricks for adjusting frames shall conform to ASTM C32. Said bricks shall mean "Boston bricks" (red tops). The plans shall note that the detail is to Town specifications if not already noted on the detail.
C. 
Manholes. Drainage and sanitary sewer manholes shall be precast, reinforced concrete conforming to ASTM C478, minimum four-foot inside diameter, and coated outside with bitumastic in accordance with the manufacturer's recommendations. Joints and lifting holes shall be mastic gasket. Manholes to service pipes larger than 30 inches in diameter shall require a special manhole in accordance with the Massachusetts Highway Department standards. Manholes will be required at every change in direction, slope or diameter in the drainpipes and at intervals not to exceed 400 feet. Manhole steps shall be steel-reinforced polypropylene plastic and formed invert shall be cement concrete for storm drains and brick for sanitary sewers. When inverts in manholes differ more than 2.75 feet, drop manholes shall be installed. All pipe-to-manhole connections shall be by a resilient connector conforming to ASTM C923, latest edition. Storm drain manholes shall be provided with a weep hole where warranted by high groundwater.
D. 
Catch basins.
(1) 
Catch basins shall be precast reinforced concrete conforming to ASTM C478, minimum five-foot inside diameter with a four-foot sump, and coated outside with bitumastic in accordance with the manufacturer's recommendations. All catch basins, manholes, and frames shall be set on Boston bricks, commonly referred to as "red tops." Hoods shall be installed in all catch basins and shall be LeBaron Foundry Co. Catalog No. L202 or an approved equal. Standard catch basin frames and grates are required on all catch basins where the slope is not greater than 4%. Cascade catch basin frames and grates are required where the slope is greater than 4%. Joints shall be mastic gasket.
(2) 
Catch basins shall be installed on both sides of the roadway on continuous grades at intervals not to exceed 250 feet, at low points and sags in the roadway, and near the corners of intersecting streets. Catch basins shall be provided with inlet stones. Catch basin to catch basin connections will not be allowed. Drains must enter a catch-basin-type structure prior to entering a manhole. Catch basins shall also be provided on all upgradient legs of intersections prior to the PC or PT of the intersection curb returns. Storm gutter inlets shall be required at every catch basin with a granite transition from vertical to slant curb pieces/sections. [See Subsection D(3).]
(3) 
Curb inlet stones. Curb inlet stones shall be provided at all catch basins located within the roadway. Curb inlet stones and transition curbs are to be installed at the time the granite curbing is installed. See Massachusetts Highway Department 9.04.1 for materials.
(4) 
Transition curbs. Granite transition curbs shall be provided for all curb inlet stones located in roadways that have sloped granite curb or bituminous concrete slab. Transition curbs are to be installed at the time the granite curbing is installed. See Massachusetts Highway Department 9.04.1 for materials.
E. 
Flared and metal ends. Discharge ends of storm drains shall be provided with flared/metal ends conforming to Massachusetts Highway Department standards. Backfill shall be placed and thoroughly compacted around the flared/metal ends. End walls may be used when approved by the Planning Board.
F. 
Fieldstone masonry ends. Culverts shall be provided at both ends with fieldstone masonry ends. Materials and construction methods for masonry ends in cement mortar shall conform to the relevant provisions of Section 685 of the Massachusetts Highway Department Standard Specifications.
G. 
Security bars. Removable security bars shall be provided at the entrance and outface of all culverts or open pipe drains. Bars shall be constructed of a design approved by the Planning Board or its agent, and the grate shall be installed in a manner approved by the Planning Board or its agent. A suitable drawing of the grate and method of installation shall be submitted for approval with the plans for the drains and appurtenances.
H. 
Scour protection. The discharge ends of all drains and culverts shall be protected with a riprap apron of a width not less than five feet plus the outside diameter of the pipe. The length of the apron shall be a minimum of 20 feet measured from the end wall or flared/metal end. Riprap shall conform to Massachusetts Highway Department Material Specification M2.02.0. Stone for pipe ends will not be allowed.
I. 
Subdrains. When it is determined that the water table will destabilize the proposed roadway, or sometimes to control erosion in cut slopes, installation of subdrains will be required. Materials and construction methods shall conform to Section 260 of the Massachusetts Highway Department Standard Specifications.
J. 
Trench excavation. Trench excavation shall conform to the relevant provisions of Section 140 of the Massachusetts Highway Department Standard Specifications and in accordance with the procedures described herein.
K. 
Pipe bedding. The pipe shall be bedded in well compacted granular material placed on a flat trench bottom. The granular bedding shall have a minimum thickness of one-fourth the outside pipe diameter, four inches minimum, and shall extend halfway up the pipe barrel at the sides. The remainder of the side fills and a minimum depth of 12 inches over the top of the pipe shall be filled with carefully compacted gravel borrow conforming to Massachusetts Highway Department Material Specification M1.03.0, Type C or an approved backfill material. The granular bedding material shall conform to Massachusetts Highway Department Material Specification M2.01.4.
L. 
Pipe installation and backfilling.
(1) 
Pipe shall be installed and backfilled in accordance with the relevant provisions of Section 230 of the Massachusetts Highway Department Standard Specifications and in accordance with the procedures described herein.
(2) 
Pipe laying shall begin at the downstream end of the installation with the bell or groove end of the first section upstream. The pipe shall be laid to the lines and grades specified with the pipe sections closely jointed. When bell and spigot pipes are used, bell holes shall be dug in the bedding to accommodate the bells. They shall be deep enough to ensure that the bell does not bear on the bottom of the hole but shall not be excessively wide in the longitudinal direction of the installation.
(3) 
When the pipe sections are laid, the barrel of each section shall be in contact with the quadrant shaped bedding throughout its full length exclusive of the bell. Where lift holes in the pipe have been provided, such holes shall be refilled with an acceptable grade of concrete after laying, and the concrete shall be thoroughly cured before backfill material is placed.
M. 
Leaching pit or basin.
(1) 
Pits shall be located a minimum of 100 feet from any source of water supply, 50 feet from buildings, and 20 feet from existing property lines adjacent to the subdivision perimeter. The bottom of the leaching pit shall be at least two feet above groundwater and five feet above rock. Clear distance between two pits shall be at least three times the outside diameter of the larger pit. Leaching pits will not be located in clay soils or where there is less than 10 feet of soil above a rock formation. Overflow provisions shall be provided at each leaching pit or cluster of leaching pits to the satisfaction of the Planning Board.
(2) 
Soil percolation tests shall be conducted at the proposed location of each pit by a registered professional engineer at half the depth and at the full estimated depth of the leaching pit. The required wall area or effective absorption area shall be determined from the soil percolation test. The applicant shall submit to the Planning Board the results of the soil percolation tests and the design of the leaching pits for review and approval.
(3) 
Leaching pits shall be precast, reinforced concrete conforming to ASTM C478. Watertight ductile iron manhole frames and covers shall be LeBaron Foundry Co. Catalog No. LBW 268-1 with the word "Drain" on the cover or an approved equal. Double-washed crushed stone conforming to Massachusetts Highway Department Material Specification M2.01.2 shall be placed in the bottom of the pit to a minimum depth of six inches and around the pit to a minimum thickness of 12 inches. Leaching structures shall be preceded by acceptable pretreatment to allow the settlement of solids and separation of oil/grease from the collected stormwater.
A. 
Materials and construction methods shall conform to the relevant provisions of Section 301 of the Massachusetts Highway Department Standard Specifications and the Norfolk Water Department and be in accordance with the procedures described herein.
B. 
Hydrants shall be located at all low points, and hydrants or manual air release valves shall be located at all high points of the proposed water mains. Cement concrete collars shall be installed around all valve boxes.
C. 
Curb stops and boxes shall be located only within the proposed roadway right-of-way.
Materials and construction methods shall conform to the relevant provisions of Sections 201 and 230 of the Massachusetts Highway Department Standard Specifications and the Norfolk Board of Health and be in accordance with the procedures described herein. A low-pressure air test shall be performed on all installed sanitary sewers in accordance with ASTM C828, latest edition.
A. 
Sanitary sewer pipe and fittings shall be polyvinyl chloride (PVC), SDR 35, conforming to ASTM D3034, latest edition. Large diameter PVC gravity sewer pipe and fittings shall conform to ASTM F679, latest edition.
B. 
Joints for PVC pipe and fittings shall conform to the relevant ASTM as stated in Subsection A.
C. 
The pipe shall be bedded as described in § 325-5.3K.
D. 
The pipe shall be installed and backfilled as described in § 325-5.3L.
E. 
All pipe-to-manhole connections shall be by a flexible manhole sleeve of high-quality synthetic rubber. This sleeve will allow for lateral and angular alignment as the pipe connection is made and shall conform to ASTM C923, latest edition.
All private cable utilities, including telephone, electric power, fire alarm, and cable communications lines, shall be placed underground. All private cable utilities shall be installed using conduits, manholes, handholes and appurtenances required by each utility company. These private cable utilities along with gas distribution lines shall be installed with a minimum cover of 36 inches.
Retaining walls shall be installed where required and deemed necessary by the Planning Board. They shall be cemented stone masonry conforming to the relevant provisions of Section 685 of the Massachusetts Highway Department Standard Specifications, Construction Standards, and in accordance with the procedures described herein. Maximum visible height of retaining walls shall be four feet.
The fire alarm system, if any, shall be installed in accordance with the recommended practices of the National Fire Protection Association. The number, type, and location of fire alarm boxes shall be established by the Norfolk Fire Department.
Trees shall be planted within the grass strip (or, if determined necessary by the Planning Board, in tree easements) at thirty-five-foot or lesser intervals, on both sides of all streets. They shall be at least 12 feet in height and three inches in caliper at the time of planting. All trees shall be planted no later than one month after installation of the first course of bituminous concrete and shall be guaranteed for one year after street acceptance. A written copy of said guarantee shall be provided to the Planning Board prior to street acceptance.
A. 
Tree species. The species of street trees shall be chosen from the following species or such other tree variety, as appropriate, and as may be approved by the Planning Board:
(1) 
Acer pseudoplatanus – sycamore maple.
(2) 
Acer rubrum – red maple and varieties.
(3) 
Acer saccharum – sugar maple and varieties.
(4) 
Carpinus betulus – European hornbeam.
(5) 
Cercidiphyllum japonicum – katsura tree.
(6) 
Ginkgo biloba – ginkgo variety.
(7) 
Liquidambar styraciflua – sweetgum var.
(8) 
Quercus palustris – pin oak.
(9) 
Quercus rubra – red oak.
(10) 
Zelkova serrata – Japanese zelkova.
(11) 
Sophora japonica – Japanese pagoda tree.
(12) 
Fraxinus pennyslvanica – green ash var.
(13) 
Pyrus calleryana – Redspire Callery pear.
(14) 
Gleditsia triacanthos inermis – thornless honeylocust var.
(15) 
Platanus acerifolia – Bloodgood London plane tree.
(16) 
Tilia cordata – littleleaf linden and varieties.
(17) 
Tilia tomentosa – silver linden.
B. 
There shall be at least three species of trees planted per street. No species of tree planted adjacent to any other tree shall be the same species as that tree.
C. 
The grass strip/tree easement areas shall be surfaced with not less than six inches of topsoil which shall be seeded and rolled or otherwise vegetated to the satisfaction of the Planning Board.
D. 
Tree wells are required for the protection of existing trees where deemed necessary by the Tree Warden. Materials and planting methods shall conform to the relevant provisions of Section 771 of the Massachusetts Highway Department Standard Specifications (including but not limited to staking and wiring of all trees). Prior to installation of the trees, the planting method shall be submitted to the Planning Board.
The removal of topsoil from the development area will not be allowed. Not less than six inches of good quality loam shall be placed within the right-of-way, cut and fill areas, easements, lots, etc. Materials and construction methods for loam borrow and topsoil shall conform to the relevant provisions of Section 751 of the Massachusetts Highway Department Standard Specifications and be in accordance with the procedures described herein. Materials and construction methods for seeding shall conform to the relevant provisions of Section 765 of the Massachusetts Highway Department Standard Specifications and be in accordance with the procedures described herein. Seed for the grass strips shall conform to Massachusetts Highway Department Material Specification M6.03.0, Grassplots and Islands. After loam and seed has been placed in retention/detention basins and at slopes equal to or steeper than 3:1, a jute mesh matting, or an approved equal, shall be installed in accordance with the manufacturer's recommendations for slope stabilization. All loaming and seeding shall be installed no later than one month after installation of the first course of bituminous concrete.
The applicant shall furnish and erect necessary streets signs to designate the name of each street (and, in the case of culs-de-sac, the designation "Not A Through Street") in the development prior to the occupancy of any house on the street. Signs shall conform to those used by the Town and approved by the Highway Superintendent.
The applicant shall be responsible for paying fees established by the Town of Norfolk to defray the cost of installation and initial operation of streetlights at locations approved by the Planning Board. In determining required locations, the Planning Board may consult with the Board of Selectmen and the Norfolk Highway Department. Streetlight fixtures and standards shall conform to fixtures and standards as most recently installed in the Town of Norfolk at the time of application. Refer to Appendix D for lighting pole and fixture standards.[1]
[1]
Editor's Note: Appendix D can be obtained from the Planning Board office.
A. 
Guardrails shall be required along roadways in at least the following areas:
(1) 
Culvert crossings.
(2) 
Where side slopes are steeper than three horizontal to one vertical.
(3) 
Where, in the opinion of Planning Board, it is necessary for public safety.
B. 
Materials and construction methods shall conform to the relevant provisions of Section 601 of the Massachusetts Highway Department Standard Specifications and be in accordance with the procedures described herein. Posts shall be pressure-treated wood, rectangular in section six inches by eight inches, chamfered on top, and at least six feet three inches long with flat tops and butts, conforming to Massachusetts Highway Department Material Specification M8.07.0B.2. Rail elements shall conform to AASHTO M180, Class A, Type 4, beams of corrosion-resistant steel. Guardrail shall not be ramped. A guardrail detail shall be provided for approval.
C. 
Wood posts and rails.
(1) 
Wood posts and rails are to be used only on very-low-speed roads having a design speed of 15 miles per hour and 20 miles per hour and parking areas and are to be pressure treated. Prior Planning Board approval is required for use of this type of barrier.
(2) 
Wood posts shall conform to the materials and construction as described in Subsection B. Spacing of posts shall be a maximum of six feet three inches center to center. See detail.[1]
[1]
Editor's Note: The detail can be obtained from the Planning Board office.
(3) 
Wood rails shall be four inches by eight inches and of a length where joints are to be located only at the posts. Rails shall be of the same species and stress grade as the wood posts. Rails shall be treated in accordance with Massachusetts Highway Department Material Specification M8.07.0B.2. Two five-eighths-inch carriage bolts shall be used to fasten the rail to the post and countersunk. Nuts shall be installed so that they cannot be backed off. The number of rails, either one or two, to be used for the wood guardrail shall be determined by the Planning Board.
A. 
Materials and construction methods shall conform to the relevant provisions of Section 710 of the Massachusetts Highway Department Standard Specifications and be in accordance with the procedures described herein.
B. 
Bounds shall be set on both street lines at all angle points, at the beginning and end of curves, and at all intersections.
C. 
Certification, in writing, shall be made by the registered land surveyor for the developer to the Planning Board that, as determined by a survey after completion of construction, the bounds have been properly set in accordance with the approved plan and rules and regulations of the Planning Board. Tie sketches to bound points shall be furnished to the Planning Board and to the Highway Superintendent on sheets of paper 8 1/2 inches by 11 inches with a suitable title block.
D. 
Iron-pipe monumentation driven at least three feet six inches into the ground with a minimum of six inches exposed and with a diameter of 3/4 inch is required for all easement corners.
E. 
Bounds are to be installed at the time the sidewalk top course is installed.
All ramps must comply with the Americans with Disabilities Act regulations[1] and with Architectural Access Board regulations (521 CMR 1 to 47) in force and effective on the date of street acceptance.
A. 
Curb-cut ramps must be provided in curbed areas that have sidewalks. The location of the curb-cut opening and ramp must be carefully coordinated with respect to the pedestrian crosswalk lines, if any. This planning must ensure that the ramp opening (at the fully depressed curb) is situated within the parallel boundaries of the crosswalk markings.
B. 
Ramps for the handicapped are not limited to intersections and marked crosswalks, and ramps should also be provided at other appropriate or designated points of pedestrian concentration, such as loading islands, mid-block pedestrian crossings, and locations where pedestrians could not otherwise recognize the proper place to cross the roadway. Because nonintersection pedestrian crossings are generally unexpected by the motorist, warning signs should be installed and adequate visibility provided by prohibiting parking.
C. 
Ramps for the handicapped should have a textured, nonskid surface. This texture not only provides a measure of safety for the user but also warns a blind person of the presence of the ramp.
[1]
Editor's Note: See 42 U.S.C. § 12101 et seq.
A. 
Upon completion of all the work in the subdivision, the applicant shall remove from the right-of-way and all adjoining properties all temporary structures, rubbish and debris, surplus material, and other objectionable materials and shall leave the area(s) in a neat and orderly condition.
B. 
All storm drainage and sanitary sewer pipes and structures shall be cleaned and flushed, at the applicant's expense, prior to final inspection and acceptance.
Certificates of compliance shall be submitted to the appropriate, responsible agency as indicated on Form K, Subdivision Inspection Checklist,[1] for approval of all materials being used in accordance with the relevant provisions of Section 6.00 of the Massachusetts Highway Department Standard Specifications.
[1]
Editor's Note: Form K can be obtained from the Planning Board office.
A. 
All roads and utilities, including basin cleaning and snow removal, shall be maintained by the applicant until final inspection and acceptance by the Town. Annual work such as cleaning catch basins, repairing curbing, pothole repair and snow removal/sanding must be completed by the developer. If released from restrictions with regard to sale of lots or buildings on lots by the posting of a bond, the subdivider shall maintain the roads for the vehicular travel in a manner satisfactory to the Planning Board. Further, the subdivider shall guarantee the maintenance of the roads in a subdivision in a condition which meets all the requirements of these rules and regulations to the satisfaction of the Planning Board, by posting a bond with two or more sureties approved by the Board or by a surety company authorized to do business in the commonwealth, in a penal sum as required by the Board to secure the maintenance as herein provided, or by a deposit of money or negotiable securities sufficient in amount, in the opinion of the Board, to secure the aforesaid maintenance. Such bond shall be held until the streets are accepted by the Town.
B. 
The bond shall be subject to forfeiture as liquidated damages upon failure of the developer to perform the required roadway maintenance within a reasonable time upon notice by the Town of Norfolk.
At any time during the course of construction, the Board may issue an order to cease some or all work within the subdivision or to undertake corrective or remedial work whenever the applicant has violated these rules and regulations, plan specifications, or conditions of approval. The applicant shall comply with all such orders, and failure to do so shall entitle the Board to rescind or amend plan approval or to take, at the applicant's expense, any corrective or remedial action.