HomeMy WebLinkAbout2013-02-19 Planning Board Supplemental Materials (53)
TOWN OF NORTH ANDOVER
DIVISION OF PUBLIC WORKS
384 OSGOOD STREET
NORTH ANDOVER, MASSACHUSETTS 01845-2909
BRUCE D. THIBODEAU, P.E.
DIRECTOR
Eugene P. Willis, M.S. PE
Director of Engineering
Telephone (978) 685-0950
Fax (978) 688-9573
February 6, 2013
North Andover Planning Board
1800 Osgood St.
North Andover, Ma. 01845
Re: Regency Place P.R.D. Subdivision review #2
Dear Board Members:
The DPW Engineering Dept. has received a request for comment on the above referenced
project. I offer the following comments based on the Definitive P. R. D. Subdivision Plan for
“Regency Place” dated January 10, 2013 by Christiansen & Sergi Inc, Haverhill MA.:
1. The development utilizes many low impact development (LID) techniques that require
drainage easements outside of the right of way. The DPW does not have personnel to maintain
these facilities. A homeowners association should be created to maintain the drainage, both
inside and outside the right of way, in perpetuity. There should be reference to the association in
the individual lot deeds.
2. Much of the drainage infrastructure/swales as shown will be located on private property.
Easements should be created to describe the areas (swales, basins, structures etc.) and granted to
the homeowners association. Specifically infiltration basins C & D are not delineated with
bearings and distances.
3. The project proposes using a “Stormceptor” to replace the existing catch basin at STA.
0+23.6. The DPW does not have personnel to maintain this type of infrastructure. This
structure, and the two up gradient catch basins at STA. 0+37.5, should remain the responsibility
of the homeowner’s association referenced above.
4. An O&M plan for the LID facilities should be created and incorporated in the home
owner’s association. The association should be referenced in the individual lot deeds.
a. The operation and maintenance of the entire drainage system listed in the
Stormwater Report will remain a private responsibility in perpetuity.
b. The Board’s decision should reflect this fact preferably with deed restrictions on
the individual lots.
5. The DPW does not require the newly created subdivision road to be a through street to
the existing Appleton St. roadway.
6. The proposed new roadway entrance should leave Blue Ridge Road with a negative pitch.
The low point in the roadway pavement should occur opposite the catch basins at STA. 0+37.5.
7. Section 6.9 curbing waiver request. The width of the roadbed subgrade and gravel fill
must extend the full 32 feet wide (4’ at each shoulder) if the granite curbing is to be waived.
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02/12/13
TOWN OF NORTH ANDOVER
DIVISION OF PUBLIC WORKS
384 OSGOOD STREET NORTH ANDOVER, MASSACHUSETTS 01845-2909
8. A detail should be provided for water and sewer service connections.
9. Particular attention must be paid to the grass seed mix proposed for the swales. Should
check dams be installed in the steeper sections of the shoulder drainage swale?
10. All accumulated sediment shall be removed from infiltration basins before roadways are
submitted to the town for acceptance.
Sincerely,
Eugene P. Willis, P.E.
Director of Engineering
CC: File,