HomeMy WebLinkAbout2001/05/17 - 1st Civil Review - Delucia Way TOWN OF NORTH ANDOVER PLANNING BOARD
ENGINEERING REVIEW OF DEFINITIVE SUBDIVISION PLAN
FOR CONFORMANCE WITH PLANNING BOARD
RULES AND REGULATIONS GOVERNING THE SUBDIVISION OF LAND
AND STANDARD ENGINEERING PRACTICE
Subdivision Title: Delucia Way VHB No.: 06716.3,4
Subdivision Location: Waverley Road
Owner& Applicant: Right Now Realty Trust,P.O. Box 985, Kingston,NH 03848
MPB Realty Trust,415 Waverly Road,No. Andover,MA 01845
Applicant's Engineer: Christiansen &Sergi,Inc., 160 Summer Street,Haverhill,MA 01830
Plan Date: 03-09-01 Review Date: 05-17-01
The Applicant's engineer submitted plans and documents to VHB for review on April 13, 2001.
The submission was reviewed for conformance to the October 20oO Rules and Regulations
Governing the Subdivision of Land, appropriate sections of the 1972 Town of North Andover
Zoning Bylaw amended in May 2000 and standard engineering practice. The following
comments note non-conformance with specific sections and questions/comments on the proposed
design.
The Applicant has submitted the following information for VHB's review:
0 Definitive Subdivision Plan (5 sheets) dated 03-09-01
0 Stormwater Management Report dated 03-28-01
0 Form C—Application for of Subdivision Approval
0 Form D—Designer's Certificate
SECTION 5. DEFINITIVE SUBDIVISION PLAN
Section 5.2.5 Contents
1) 5.2.5.2(l)Bearings and distances of the proposed sewer easement lines appear to be
omitted from the lot layout plan. The Applicant should add this information to the plan.
2) 5.2.5.3(10)No groundwater observation and percolation test pit data has been shown on
the subdivision plans. (See comment below under Section 5.2.6)
3) 5,,2.5.4,b(7)Proposed driveway locations appear to be omitted on the street plan. Also,
dimensions of all driveways should be labeled on the street plan.
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4) 5.2,5,5 The typical section should be revised to show site specific conditions.For
example,the plan shows proposed sidewalk on the south side only, yet the typical
section shows sidewalk on both sides.
Section 5.2.6 Test Data
As no soil test data has been submitted, VHB assumes that test pits,have not been performed.
Accurate groundwater elevation and soil permeability data is used when designing the
distance between the bottom of the detention/infiltration area and high water table elevation.
Without this data, it is snot clear whether the detention/infiltration area will function as
designed. The Applicant has provided a soil analysis in the Stormwater Management Report
Section V. The permeability rate and high water table of the on-site soils were determined
according to the Soil Survey by Soil Conservation Service (SCS).VHB suggests that test pits
be performed to confirm the high water,table elevation and soil permeability rates
deterrm*ned by SCS.
Section 5.3 Stormwater Management Report
A Stormwater Management Report has been submitted. See comments below under Section
6.14 Storm Drainage.
Section 5.4 Environmental and Community Impact Statement
An Environmental and Community Impact Statement is required when 6 or more new lots are
created. The Applicant has stated that this requirement does not apply to this project because
only five(5)new lots are being created.VHB believes that six (6) new lots are being created
from one lot as shown on the subdivision plain (sheet 2 of 5).VHB, recommends that the
Applicant submit the Environmental and Community Impact Statement or request a waiver
from this requirement.
SECTION 6. REQUIREMENTS FOR IMPROVEMENTS AND DESIGN
01
Section 6.8 Street—Design Standards
According to Table IA, the minimum intersection comer curve radius must be 40 feet. It
appears that the radii of the comers at the intersection of Waverley Road is 30 feet. VHB
recommends that the radii be revised according to Figure No.I in the Rule &Regulations.
6.8.9 The Applicant should submit site distance measurements/calculations along Waverley
Road to determine whether adequate stopping sight distance exists for vehicles exiting the
proposed subdivision.
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Section 6.10 Driveway Aprons
VHB recommends that the plans include a detail of driveway construction. VHB suggests
that the detail include a plan and section view. The driveway should slope toward the
roadway and runoff from the roadway should not be able to flow down a driveway onto
private property.
Section 6.11 Sidewalk
6.11.4 The plans do not show any provisions for a wheelchair ramp at the intersection of
Waverley Road. VHB recommends that a construction detail for a wheelchair ramp be
included in the plans, the detail should meet the current Massachusetts Architectural Access
Board(AAB)Standards.
Section 6.14 Storm Drainage
1) 6.14.7 It appears that a portion of the existing drainage area that used to flow into the
isolated freshwater wetland was redirected to the proposed detention/infiltration area.
The Applicant should verify altering the existing drainage patterns does not adversely
affect the isolated freshwater wetland.
2) 6.14.9 Gutterspread calculations should be submitted to verify the proposed spacing of
catch basins is adequate to capture the roadway runoff.
3) 6.14.10 If there will be standing water in the proposed detention/infiltration area for an
extended period of time.VHB recommends that a fence be provided around the
perimeter of the detention/infiltration area with an access gate for maintenance.
4) + .14.10 Thee minimum(MIN) 3:1 side slope shown on the typical detention area detail
(sheet 5) should be revised to maximum(MAX) 3:1.
5) The Applicant should verify whether the isolated freshwater wetland is under the
jurisdiction of the Wetlands Protection Act. Limit of 100-foot buffer zone shown on the
site grading plan should be removed if the isolated freshwater wetland is a non-
Jurisdictional wetland.
Section 6.21 Street Lighting
01
No provision for street lighting is apparent on the plans
STANDARD ENGINEERING PRACTICE AND,CONSTRUCTION ISSUES
1) VHB recommends that radii of the proposed sloped granite edging be provided at the
intersection of Waverley Road, as the proposed sloped granite edging is not concentric
with the proposed lot line.
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2) VHB recommends that centerline stations for the 50-foot taper sections from station
0+00 to station 2+20 be identified on the roadway layout plan.
it is recommended that the applicant provide WRITTEN RESPONSES to the issues and
comments contained herein.
Reviewed by: Date:
Danny H. Wong, E.I.T.
Civil Engineer—Highway and Municipal Engineering
Checked by:
Timothy B.McIntosh,P49.
Project Manager—Highway and Municipal Engineering
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