307Main Application and Plans_Definitive Filing
Application for Approval of
Definitive Subdivision Plan
307 MAIN STREET DEFINITIVE PLAN
307 Main Street
Barnstable, Massachusetts
Prepared for:
WinnDevelopment Company, LP
One Washington Mall, Suite 500
Boston, MA, 02108
Prepared by:
Submitted in Compliance with the Zoning
Ordinance of the Town of Barnstable as
amended through November 2022 and the
Subdivision Regulations.
April 11, 2024
344700PT004.docx
April 11, 2024
Barnstable Planning Board
Attn: James Kupfer, Assistant Director
367 Main Street
Hyannis, Massachusetts 02601
Via: FedEx and email to James.Kupfer@town.barnstable.ma.us
Reference: Application for Definitive Subdivision Plan
307 Main Street
Barnstable, Massachusetts
B+T Project No. 3447.00
Dear Members of the Board:
On behalf of the applicant, WinnDevelopment Company, LP, Beals and Thomas, Inc.
respectfully submits the enclosed Application for Approval of Definitive Subdivision Plan for
the proposed subdivision of the parcel of land located at 307 Main Street in Hyannis,
Massachusetts. This filing is submitted in accordance with Chapter 801: Subdivision
Regulations (the Regulations).
Four copies of this submission package will be filed with the Barnstable Planning Board
including one copy of the stormwater report and ten 11”x17” copies of the plans. As
required, the submission includes:
▪ One (1) copy of the properly executed Form C and Form C Checklist;
▪ One (1) copy of the most recently recorded deed and tax bill for each parcel of land,
with evidence of payment of all taxes;
▪ Written authorization to submit the application on behalf of the owner;
▪ The required filing fee;
▪ A project narrative detailing the waiver requests and written response to comments;
▪ One (1) copy of the completed Environmental Analysis Form;
▪ One (1) print of the Definitive Plan.
Barnstable Planning Board
April 11, 2024
Page 2
Enclosed is a check payable to the Town of Barnstable in the amount of $350.00 for the
Application for Approval of Definitive Plan fee for five lots.
Should you have any questions regarding this application or require additional information,
please contact us at (508) 366-0560. We thank you for your consideration and look forward
to meeting with the Board to review the Application.
Sincerely,
BEALS AND THOMAS, INC.
Paula A. Thompson, PE, LEED AP, SITES AP
Associate
Enclosures
cc: Barnstable Board of Health (via hand delivery)
Barnstable Town Clerk (via hand delivery)
Ramie Schneider, WinnDevelopment Company LP (via email)
Robert Brennan, Esq., Smolak & Vaughan, LLP (via email)
MC/pat/cmv/344700PT004.docx
Application for Approval of Definitive Plan
307 Main Street Preliminary Plan
Barnstable, Massachusetts
TABLE OF CONTENTS
1.0 FORMS ................................................................................................................................. 1-1
2.0 PROJECT NARRATIVE .......................................................................................................... 2-1
2.1 EXISTING CONDITIONS ................................................................................................................................. 2-1
2.2 PROPOSED DEFINITIVE PLAN ........................................................................................................................ 2-1
2.3 COMPLIANCE WITH THE DESIGN STANDARDS .............................................................................................. 2-2
2.3.1 Streets (Section 801-26) ................................................................................................................ 2-2
2.3.2 Drainage (Section 801-27) ............................................................................................................ 2-3
2.3.3 Easements (Section 801-28) ......................................................................................................... 2-3
2.3.4 Sidewalks (Section 801-29) ........................................................................................................... 2-3
2.3.5 Curbing and Berms (Section 801-30) .......................................................................................... 2-4
2.3.6 Lots (Section 801-31) ..................................................................................................................... 2-4
2.3.7 Open Spaces (Section 801-32)..................................................................................................... 2-4
2.3.8 Protection of Natural Features (Section 801-33) ....................................................................... 2-4
2.3.9 Retaining Walls (Section 801-34) ................................................................................................. 2-4
2.3.10 Utilities (Section 801-35) ............................................................................................................... 2-4
2.4 WAIVER REQUESTS ....................................................................................................................................... 2-5
2.5 RESPONSE TO COMMENTS ........................................................................................................................... 2-5
3.0 ABUTTER INFORMATION ..................................................................................................... 3-1
4.0 DEFINITIVE PLAN ................................................................................................................. 4-1
Section 1.0
Forms
Form C – Application for Approval of Definitive Plan
Form C Checklist
Form EA - Environmental Analysis
Copy of the most recently recorded deed
Tax bill for each parcel of land
Evidence of taxes being paid
Written authorization to submit the application on behalf of the Owner
Filing Fee
SUBDIVISION REGULATIONS
801 Attachment 2:9 11 - 01 - 2004
SUBDIVISION REGULATIONS
801 Attachment 2:11 11 - 01 - 2004
§ 801-24
(See § 801-15.)
BARNSTABLE CODE
801 Attachment 2:12 09 - 15 - 2004
SUBDIVISION REGULATIONS
801 Attachment 2:13 11 - 01 - 2004
§ 801-13.
BARNSTABLE CODE
801 Attachment 2:14 09 - 15 - 2004
X
NA
144 Turnpike Road, Suite 201, Southborough, MA 01772-2104
Civil 41360
Digitally signed by Paula A. ThompsonDN: O="Beals and Thomas, Inc.", CN=Paula A. Thompson, E=pthompson@bealsandthomas.com
Reason: I agree to the terms defined by the placement of my signature in this document
Location: Date: 2024.04.11 07:53:36-04'00'Foxit PDF Editor Version: 12.1.4
Paula A. Thompson
Mark E. Benson, PLS
144 Turnpike Road, Suite 201, Southborough, MA 01772-2104
PLS 48416
Digitally signed by MEB-K9G
DN: CN=MEB-K9GReason: I am the author of this document
Location:
Date: 2024.04.11 09:48:09-04'00'
Foxit PDF Editor Version: 12.1.3
MEB-K9G
Paula A. Thompson, PE
508
508 366-0560
366-0560
SUBDIVISION REGULATIONS
801 Attachment 2:17 11 - 01 - 2004
§801-24A(1)(a)[12]
§ 801-18
BARNSTABLE CODE
801 Attachment 2:18 09 - 15 - 2004
SUBDIVISION REGULATIONS
801 Attachment 2:19 11 - 01 - 2004
§ 801-40E.
BARNSTABLE CODE
801 Attachment 2:20 09 - 15 - 2004
N O T N O T
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Bill No.28077Town of Barnstable Fiscal Year 2024Actual Real Estate Tax Bill
Assessed owner as of January 1, 2023:
Based on assessments as of January 1, 2023, your Real Estate Tax
for the fiscal year beginning July 1, 2023 and ending June 30, 2024
on the parcel of real estate described below is as follows:
TAX SUMMARY
CPAHYCOM
HYRES
TAXCOMTAXRES
Total Tax
$997.61
$21,513.88
$0.00$33,253.82
$0.00
$55,765.31
Taxpayer CopySEE REVERSE SIDE FOR IMPORTANT INFORMATION
THE COMMONWEALTH OF MASSACHUSETTS
THIS FORM APPROVED BY COMMISSIONER OF REVENUETreasurer/Collector
Sean D. O’Brien
Make Check Payable and Mail To:
Town of Barnstable,MA
Department 2200
PO Box 986535
Boston, MA 02298-6535
M
A
Y
R
E
M
I
T
F
E
B
R
U
A
R
Y
R
E
M
I
T
Town of Barnstable
PO Box 40
Hyannis, MA 02601
Location:
Bill Date
Class Code
Land Area
Parcel ID
Book/Page
Deed Date
Town of Barnstable
PO Box 40
Hyannis, MA 02601
Location:
02082082024800028077600012977575
3410
1.91 AC
327-103
C227231 0
08/12/2021
307 MAIN STREET (HYANNIS)
WATSON, CONRAD TR
307 MAIN STREET NOMINEE TRUST
42C WAREHOUSE ROAD
HYANNIS MA 02601-2211
Fiscal Year 2024 Actual Real Estate Tax Bill
WATSON, CONRAD TR
307 MAIN STREET NOMINEE TRUST
42C WAREHOUSE ROAD
HYANNIS MA 02601-2211
Payments made after 12/15/2023 may not
be reflected on this bill.
Parcel ID: 327-103
307 MAIN STREET (HYANNIS)
28077
AMOUNT DUE 5/1/2024
Parcel ID: 327-103
307 MAIN STREET (HYANNIS)
28077
Bill No.4/1/2024
$12,977.57
Preliminary Tax
Real Estate Tax
Make Check Payable and Mail To:
Town of Barnstable,MA
Department 2200
PO Box 986535
Boston, MA 02298-6535
4th Quarter PaymentReturn This Portion With Your Payment
COLLECTOR’S COPY
Bill Date
Bill No.
Voluntary Scholarship Payment: ______________
Voluntary Elderly/Disabled Payment: ______________
Total Paid: ______________
02082082024800028077600029077484
Fiscal Year 2024 Actual Real Estate Tax Bill
Abatement applications are due in the Assessor’s
office by 2/1/2024.
AMOUNT DUE 2/1/2024
12/29/2023
$29,077.48
T18 P1
5103
2WATSON, CONRAD TR
307 MAIN STREET NOMINEE TRUST
42C WAREHOUSE ROAD
HYANNIS MA 02601-2211
FTATTAFADTTDDTFTDFTFDAFAFFDTTTTFFFADTTTDFFAATFADAFTFFFAFAAADADTTD
3rd Quarter PaymentReturn This Portion With Your Payment
COLLECTOR’S COPY
Voluntary Scholarship Payment: ______________
Voluntary Elderly/Disabled Payment: ______________
Total Paid: ______________
$30,060.17
$55,765.31
Special Assessments $250.00
Current Payments/Credits
Total Tax/Spec. Assess.
$14,275.10
$56,015.31
Exemptions/Abatements $0.00
Past Due $15,785.07
Interest $314.84
3rd Quarter Due 2/1/2024 $29,077.48
4th Quarter Due 5/1/2024 $12,977.57
Class 1Class 1
ResidentialResidential
Class 5Class 5
Pers. PropPers. Prop
Class 3Class 3
CommercialCommercial
Class 4Class 4
IndustrialIndustrial
$6.65$6.65 $5.92$5.92 $5.92$5.92 $5.92$5.92GeneralGeneral
District Tax Rate Per $1,000
Barnstable FDBarnstable FD Cotuit FDCotuit FD COMM FDCOMM FD W. Barnstable FDW. Barnstable FD
$2.11$2.11 $1.23$1.23 $1.16$1.16 $1.93$1.93
Hyannis FDHyannis FD Residential/OtherResidential/Other $2.40/$3.83$2.40/$3.83
FeesPROPERTY DESCRIPTION
Interest at the rate of 14% per annum will accrue on overdue
payments from the due date until payment is made.
To Pay Your Bill Online:
Log on to: www.townofbarnstable.us
or pay bills by telephone by calling
855-844-0216
SPECIAL ASSESSMENTS
OFFICE HOURS M-F 8:30 AM to 4:30 PM
Collector’s Office: (508) 862-4054
Make Check Payable and Mail To:
Town of Barnstable,MA
Department 2200
PO Box 986535Boston, MA 02298-6535
$0.00
DESC AMOUNT INTSABUS C&I $250.00
Land Value $693,300
Building Value $4,923,900Exempt Value $0
$250.00
$5,617,200
Total Special Assessments
Taxable Value
Return with Payment
Return with Payment
FISCAL YEAR 2024 TAX: This tax bill shows the amount of real estate taxes you owe for fiscal year 2024 (July 1, 2023 - June 30, 2024). The tax shown in this bill is based on assessments as
of January 1, 2023. The bill also shows betterments, special assessments and other charges.
PAYMENT DUE DATES/INTEREST CHARGES: Your preliminary tax was payable in two equal installments if preliminary bills were mailed on or before August 1, 2023. The first payment was due
on August 1, 2023, or 30 days after the bills were mailed, whichever was later, and the second payment was due on November 1, 2023. However, if preliminary bills were mailed after August 1,
2023, your preliminary tax was due as a single installment on November 1, 2023, or 30 days after the bills were mailed, whichever was later. Your preliminary tax is shown on this bill as a credit
against your tax, including betterments, special assessments and other charges. If tax bills were mailed on or before December 31, 2023, the balance is payable in two equal installments. Your
first payment is due on February 1, 2024. Your second payment is due on May 1, 2024. However, if tax bills were mailed after December 31, 2023, the balance is due as a single installment on
May 1, 2024, or 30 days after the bills were mailed, whichever is later. If your payments are not made by their due dates, interest at the rate of 14% per annum will be charged on the unpaid and
overdue amount. If tax bills were mailed on or before December 31, 2023, interest will be computed on overdue first payments from February 1, 2024 and on overdue second payments from May
1, 2024 to the date payment is made. If tax bills were mailed after December 31, 2023, interest will be computed on overdue final payments from May 1, 2024, or the payment due date, whichever
is later, to the date payment is made. You will also be required to pay charges and fees incurred for collection if payments are not made when due. Payments are considered made when received
by the Collector. To obtain a receipted bill, enclose a self-addressed stamped envelope and both copies of the bill with your payment.
ABATEMENT/EXEMPTION APPLICATIONS: You have a right to contest your assessment. To do so, you must file an application for an abatement in writing on an approved form with the Board
of Assessors. You may apply for an abatement if you believe your property is valued at more than its fair cash value, is not assessed fairly in comparison with other properties, or if a classified
tax system is used locally, is not properly classified. If tax bills were mailed on or before December 31, 2023, the filing deadline for an abatement application is February 1, 2024. However, if tax
bills were mailed after December 31, 2023, the deadline is May 1, 2024, or 30 days after the date the bills were mailed, whichever is later.
You may be eligible for an exemption from or deferral of all or some of your tax. In order to obtain an exemption for which you are qualified, you must file an application in writing on an approved
form with the assessors. The filing deadline for an exemption under Mass. G.L. Ch. 59, §5, Cl. (17, 17C, 17C½, 17D), 18, 22, 22A, 22B, 22C, 22D, 22E, 22F, (22H), (37, 37A), (41, 41B, 41C,
41C½), 42, 43, (52, 53, 56 or 57) or a deferral under Cl. 18A or 41A is April 1, 2024, or 3 months after the date tax bills were mailed, whichever is later. The filing deadline for all other exemptions
under Ch. 59, §5 is February 1, 2024 if tax bills were mailed on or before December 31, 2023, or May 1, 2024, or 30 days after the date tax bills were mailed, whichever is later, if the bills were
mailed after December 31, 2023. The filing deadline for a residential exemption under Ch. 59, §5C, or a small commercial exemption under Ch. 59 §5I, if locally adopted and not shown on your
bill, is April 1, 2024, or 3 months after the date tax bills were mailed, whichever is later.
Applications are timely filed when (1) received by the assessors on or before the filing deadline, or (2) mailed by United States mail, first class postage prepaid, to the proper address of the
assessors, on or before the filing deadline, as shown by a postmark made by the United States Postal Service. If your application is not timely filed, the assessors cannot by law grant an
abatement or exemption.
INQUIRIES: If you have questions on your valuation or assessment or on abatements or exemptions, you should contact the Board of Assessors. If you have questions on payments, you should
contact the Collector’s Office.
Section 2.0
Project Narrative
Application for Approval of Definitive Plan
307 Main Street Preliminary Plan
Barnstable, Massachusetts
Project Narrative 2-1
2.0 PROJECT NARRATIVE
2.1 Existing Conditions
The Property is located at 307 Main Street in Barnstable, Massachusetts and can be
further identified by the Barnstable Assessor as Map 327, Lot 103 which is under site
control by WinnDevelopment Company, LP. The current property owner, 307 Main
Street Nominee Trust, through its trustee, has authorized the Applicant to submit this
application. The Property consists of a ±1.8-acre, developed site that currently
contains a two-story vacant bank building and associated 73-space parking lot.
The Property is located in the Downtown Main Street Zoning District (DMS) and the
Hyannis Main Street Waterfront Historic District (HMSWHD). The Property is bounded
to the east by Old Colony Road (a two-lane, one-way roadway); to the northwest by
Main Street (a two-lane, one-way roadway); and to the south by the former Cape Cod
Times building, which has been retrofitted with apartments.
The Property is served by two driveway curb cuts along Old Colony Road on the
eastern side of the site and can also be accessed via a curb cut on Main Street
connecting to a fire access lane and easement. The fire access lane is located along
the southwestern property line and provides access to the abutting property.
According to the Federal Emergency Management Agency (FEMA) Firm Maps
25001C0568J and 25001C0569J, the Property is not mapped within a flood hazard
area. Additionally, the Property is not mapped by Natural Heritage and Endangered
Species Program (NHESP) within priority habitat of rare species or within estimated
habitat of rare wildlife, nor does it contain any certified vernal pools or wetland
resources areas. Based on the Zoning Map of the Town of Barnstable last amended
February 2, 2023, the Property is not within a Groundwater Protection Overlay District
or a Well Protection Overlay District.
2.2 Proposed Definitive Plan
The Applicant is requesting Approval of a Definitive Plan to subdivide the Property
into five multi-family residential lots. The Project includes a 230-foot-long dead-end
road (Minor Road) to access the multi-family lots in lieu of individual access from Old
Colony Road and/or Main Street.
Application for Approval of Definitive Plan
307 Main Street Preliminary Plan
Barnstable, Massachusetts
Project Narrative 2-2
2.3 Compliance with the Design Standards
This section describes compliance with the applicable sections of the Regulations
(Chapter 801, Article VI: Design Standards).
2.3.1 Streets (Section 801-26)
Location of Streets (Section 801-26.A)
The road provides safe and adequate access to all lots in the subdivision to
lessen the congestion of adjacent public streets and reduce the number of
existing curb cuts onto adjacent streets.
As access to the adjacent property is provided via an existing driveway from
Ocean Street and access easement/driveway from Main Street, the Project is
not proposing to project the subdivision road to the adjacent property.
Since the subdivision borders on major roads, several of the proposed lots will
have double frontage, however access to lots will be provided from the
subdivision road and not from the adjacent major roads.
Width, Alignment and Grades of Streets (Section 801-26.B)
The width, alignment, and grade of the road has been designed in accordance
with the criteria contained within the Appendix, Design Standards, and Typical
Road Cross Section of the Regulations.
The road is located approximately 240 feet from the intersection of Old Colony
Road and Main Street and intersects Old Colony Road at approximately 90
degrees.
The road is designed with a grade of 2%± for the first 40 feet from Old Colony
Road and no greater than 6% within 500 feet of the proposed dead-end. The
changes in grade are connected by a vertical curve of a length of 120 linear
feet, compliant with the design standards table.
Dead-end Streets (Section 801-26.C)
The road is proposed as a 230-foot long dead-end as the adjacent property is
provided via an existing driveway from Ocean Street and access
easement/driveway from Main Street.
The road has been designed with a roadway diameter of 90 feet at the
turnaround and right-of-way diameter of 105 feet. Refer to Section 2.4 for
waiver request of Section 801-26.C (4).
Clearance Above Roads (Section 801-26.D)
There is no existing vegetation on the lot that will be required to be cleared to
accommodate trucks or emergency vehicles.
Application for Approval of Definitive Plan
307 Main Street Preliminary Plan
Barnstable, Massachusetts
Project Narrative 2-3
2.3.2 Drainage (Section 801-27)
General Provisions (Section 801-27.A)
The subdivision has been designed such that all drainage is contained and
disposed of within the subdivision. No drainage is discharged onto adjacent
properties or onto the public right-of-way at a rate greater than existed prior to
construction of the subdivision. Post-development site will have less
impervious area than the pre-development site, and therefore, peak runoff
rates and volumes will be reduced. As required, a Stormwater Management
Report is being submitted with the Definitive Plan.
Subsurface Drains or Subdrains (Section 801-27.B)
The existing groundwater table is greater than four feet below the finished
grade of the roadway. As such, a system of subdrains is not necessary.
Storm Drains (Section 801-27.C)
A complete storm drain system including gutters, catch basins, manholes,
drain lines, water quality structures, dry wells, and subsurface infiltration
systems has been designed to capture, treat, and infiltrate stormwater runoff
from the subdivision to provide adequate drainage of the road so water does
not accumulate.
Proprietary water quality treatment structures are proposed to treat the first
one inch of rainfall. Catch basins are located in pairs at low points in the
roadway and at intervals of not more than 300 feet on contiguous roadway
grades with manholes located at changes in direction or at the intersection of
two or more drain lines.
Drains are a minimum of 12 inches in diameter with a minimum slope of 0.5%
and design velocities between 3 and 10 feet per second to be self-cleaning.
2.3.3 Easements (Section 801-28)
Easements are proposed for water and sewer mains to the existing municipal
facilities within Main Street and are centered on the lot line between Lot 3 and
Lots 4 and 5. Two access easements are also proposed at the corner of Main
Street and Old Colony Road to facilitate the extension of the sidewalk
requested by the Department of Public Works (DPW).
2.3.4 Sidewalks (Section 801-29)
A five-foot-wide sidewalk is proposed on one side of the proposed road and
around the cul-de-sac bulb. A green strip is proposed with street trees at 30-
foot intervals to separate the sidewalk from the roadway. A six-foot-wide
sidewalk is proposed from the new subdivision roadway to Main Street at the
request of DPW. All sidewalks conform to the American Disabilities Act (ADA)
and Massachusetts Architectural Access Board (MAAB) standards.
Application for Approval of Definitive Plan
307 Main Street Preliminary Plan
Barnstable, Massachusetts
Project Narrative 2-4
2.3.5 Curbing and Berms (Section 801-30)
At the time of paving, bituminous concrete Cape Cod berms will be installed
along the road. The proposed road will include vertical granite curbing in the
final condition.
2.3.6 Lots (Section 801-31)
Lots within the subdivision comply with the Zoning Ordinance of the Town. Lot
numbers will be conspicuously displayed with a suitable marker visible from
the road layout. Lots are located and designed to provide building sites with
positive drainage away from buildings.
2.3.7 Open Spaces (Section 801-32)
A separate open space, park, playground, or recreation area is not proposed.
2.3.8 Protection of Natural Features (Section 801-33)
There are no natural features, such as large trees, watercourses, scenic points,
historic spots, and similar community assets on site.
2.3.9 Retaining Walls (Section 801-34)
No retaining walls are proposed.
2.3.10 Utilities (Section 801-35)
Water, sewer, gas, electric, telecommunications and storm drainage facilities
are shown on the Definitive Plan which will be necessary for development of
the lots.
The sewer main is designed to connect to the municipal sewer within Main
Street. The water main is designed to connect to the existing municipal water
system within Main Street; a hydrant is proposed within the cul-de-sac bulb.
Private utility mains and services including electric, gas, and
telecommunications services are depicted conceptually, and their design and
final location will be coordinated with the respective utility companies.
Application for Approval of Definitive Plan
307 Main Street Preliminary Plan
Barnstable, Massachusetts
Project Narrative 2-5
2.4 Waiver Requests
The Applicant is requesting three waivers from the Regulations.
▪ Section 801-24 A. (1) (a)[13] which in part requires boring locations, logs, and soil
classifications at each proposed manhole, catch basin, infiltration system, 250-ft
spacing within the roadway, etc. The Project is requesting a waiver to allow use of
the soils information previously obtained for the site. Boring locations are shown
on Sheet C4.0 with a summary table of the encountered conditions. Underlying
the surface layer of asphalt or topsoil, a layer of uncontrolled fill material was
encountered and extends to between approximately 6 to 9.5 feet below ground
surface (bgs). The fill material was observed to generally consist of sand and gravel
with trace to some silt, varying to silty sand with some gravel and was observed to
contain varying amounts of organics, brick, ash, and cinders. A natural, inorganic
glacial outwash deposit was encountered underlying the fill material in each
boring location and was observed to generally consist of gravelly sand with trace
silt, varying to sand with some gravel and trace silt.
Groundwater was encountered at a depth of approximately 23.5 feet below
ground surface during the excavation of borings in July 2023. A groundwater
adjustment factor of 2.7 feet was applied for this site based on Well #AIW-231
(Zone C).
The geotechnical information obtained adequately meets the intent of the
regulation relative to mapping the soils and groundwater as the results are
consistent throughout the site. The presence of the existing building prohibits
strict compliance with the regulation as portions of the roadway and the noted
infrastructure fall within the building footprint.
▪ Section 801-26 C. (4) which requires that “Dead-end streets shall be constructed
all the way to the property line and shall be designed and located so as to allow
them to continue to abutting property.” As access to the adjacent property is
provided both from an existing driveway from Ocean Street and an access
easement/driveway from Main Street and the adjacent property has frontage on
both Main Street and Ocean Street, the Project is requesting a waiver from this
Section of the Regulations.
2.5 Response to Comments
We have included the comments from the Barnstable DPW Engineering Department
Review of the Preliminary Subdivision Plan, dated February 26, 2024, in italicized font,
followed by our current responses in bold font.
1. All plan sheets should be signed, stamped, and dated by the responsible
registered Massachusetts Professional Engineer (P.E.) and/or Professional Land
Surveyor (P.L.S.).
Application for Approval of Definitive Plan
307 Main Street Preliminary Plan
Barnstable, Massachusetts
Project Narrative 2-6
All plan sheets are stamped, signed, and dated by the responsible
professional.
2. The plan should depict the classification of the proposed subdivision roadway as a
major, secondary, minor A, or minor B street.
The type of road, Minor A, is indicated on Sheet C3.0.
3. Site distance should be analyzed in both directions given the potential for
conversion to two-way traffic on Old Colony Road. Also confirm that minimum
required site distance is met.
Sight distance provided verses sight distance required is indicated on the
plans for both directions.
4. Provide the right-of-way width for the proposed subdivision access road shown on
the “Lotting Plan” sheet.
Right-of-way width is provided on Sheet C3.0.
5. Identify the location of the access driveway to serve Lot 5 and confirm adequate site
distance is met.
The access driveway to serve Lot 5 will be provided from Road A through the
Access and Utility easement. See Sheet C3.0.
6. The proposed catch basins closest to Old Colony Road need to be shifted so they
are not within the town owned right of way.
The proposed catch basins closest to Old Colony Road have been shifted so
they are not within the Old Colony Road right-of-way.
7. A sidewalk should be included along the Old Colony Road frontage connecting to
the existing sidewalk at the intersection of Main Street and Old Colony Road.
A sidewalk is proposed along Old Colony Road connecting the existing Main
Street sidewalk to the proposed Road A sidewalk.
8. Provide a curb inlet catch basin, leach pit, and overflow structure connected to the
municipal stormwater collection system to the south of the proposed access road
along Old Colony Road.
A curb inlet catch basin, leach pit, and overflow structure are proposed south
of Road A and will be connected to the municipal stormwater collection
system within Old Colony Road.
Section 3.0
Abutter Information
Preliminary Subdivision Abutter Map and List
Planning Board Preliminary & Definitive Plans Abutter List for Subject Parcel
Direct abutters to subject parcel.
Parcel ID Owner 1 Owner 2 Address Line 1 Address Line 2 City State Zip
327102 MAIN STREET TIMES LLC 297 NORTH MAIN ST
BLD 1 STE121
HYANNIS 02601MA
327103 WATSON, CONRAD TR 307 MAIN STREET NOMINEE
TRUST
42C WAREHOUSE ROAD HYANNIS 02601MA
3/29/2024 10:50 AMReport Generated On:Page 1 of 1 2Total Number of Abutters:
This list by itself does NOT constitute a "Certified List of Abutters" and is provided only as an aid to the determination of abutters. If a Certified Abutter List is required, you must contact the Assessing Division to
have this list certified.
1,200.00
Planning Board Preliminary & Definitive Plans Abutter Map for Subject Parcel
This map is for illustration
purposes only. It is not adequate
for legal boundary determination
or regulatory interpretation. This
map does not represent an
on-the-ground survey. It may be
generalized, may not reflect
current conditions, and may
contain cartographic errors or
omissions.
Legend
Direct abutters to subject parcel.
Parcel lines shown on this map are
only graphic representations of
Assessor’s tax parcels. They are
not true property boundaries and
do not represent accurate
relationships to physical objects
on the map such as building
locations.
50
Town of Barnstable
GIS Unit
100
3/29/2024
gis@town.barnstable.ma.us
Printed on:
0
ft.100
Subject Parcel
Abutters
ft.
1 inch = approx.
Parcels
Town Boundary
Railroad Tracks
Buildings
Approx. Building
Buildings
Painted Lines
Parking Lots
Paved
Unpaved
Driveways
Paved
Unpaved
Roads
Paved Road
Unpaved Road
Bridge
Paved Median
Streams
Marsh
Water Bodies
Section 4.0
Definitive Plan
APPLICANT
Beals and Thomas, Inc.
144 Turnpike Road
Southborough, Massachusetts 01772
Job No.: 3447.00
Plan No.: 344700P011B-001
Sheet 1 of 10
WinnDevelopment Company, LP
One Washington Mall, Suite 500
Boston, Massachusetts 02108
CIVIL ENGINEER/SURVEY AND
LANDSCAPE ARCHITECT
HYANNIS, MASSACHUSETTS
(Barnstable County)
IN
Scale: 1" = 2,000'
Locus Map
SHEET INDEX
Cover Sheet
Lotting Plan
Notes, References, and Legend
Topographic Plan
Site Plan
Roadway Plan and Profiles
Roadway Cross Sections
Site Details
307 MAIN STREET
DEFINITIVE SUBDIVISION PLAN
C1.0
C2.0
C3.0
C4.0
C5.0
C6.0
C7.0 - C7.2
LOCUS
OWNER
307 Main Street Nominee Trust, Conrad Watson, Trustee
42C Warehouse Road
Hyannis, Massachusetts 02601
DEFINITIVE SUBDIVISION PLAN - APRIL 11, 2024
Subdivision Number 828
BEALS AND THOMAS, INC.
144 Turnpike Road, Suite 210
Southborough, Massachusetts 01772-2104
T 508.366.0560 | www.bealsandthomas.com
BEALS AND THOMAS, INC.
144 Turnpike Road, Suite 210
Southborough, Massachusetts 01772-2104
T 508.366.0560 | www.bealsandthomas.com
Boring
Sample
Elevation
(ft)
Sample
Depth
(ft)
Strata
USDA
Soil
Texture
Class
Corresponding
Rawls
Infiltration
Rate (in/hr)
B-1 +34.9 2.0 to
4.0 Fill Sand 8.27
B-4(OW)+33.5 2.0 to
4.0 Fill Sand 8.27
B-5(OW)+34.7 0.5 to
2.0 Fill Loamy
Sand 2.41
B-3(OW)+26.1 9.0 to
11.0
Glacial
Outwash Sand 8.27
B-4(OW)+29.5 6.0 to
8.0
Glacial
Outwash Sand 8.27
B-5(OW)+25.2 10.0 to
12.0
Glacial
Outwash Sand 8.27
B-6 +24.1 10.0 to
12.0
Glacial
Outwash
Loamy
Sand 2.41
BEALS AND THOMAS, INC.
144 Turnpike Road, Suite 210
Southborough, Massachusetts 01772-2104
T 508.366.0560 | www.bealsandthomas.com
BEALS AND THOMAS, INC.
144 Turnpike Road, Suite 210
Southborough, Massachusetts 01772-2104
T 508.366.0560 | www.bealsandthomas.com
EG=25.9FG=25.94EG=32.4FG=26.93EG=34.7FG=28.47EG=36.7FG=30.82EG=36.4FG=33.74EG=36.4FG=35.43EG=36.0FG=29.55EG=34.5FG=27.60EG=25.4FG=25.36EG=25.8FG=25.78EG=26.1FG=26.10EG=26.1FG=26.06EG=26.7FG=26.68BEALS AND THOMAS, INC.
144 Turnpike Road, Suite 210
Southborough, Massachusetts 01772-2104
T 508.366.0560 | www.bealsandthomas.com
BEALS AND THOMAS, INC.
144 Turnpike Road, Suite 210
Southborough, Massachusetts 01772-2104
T 508.366.0560 | www.bealsandthomas.com
BEALS AND THOMAS, INC.
144 Turnpike Road, Suite 210
Southborough, Massachusetts 01772-2104
T 508.366.0560 | www.bealsandthomas.com
BEALS AND THOMAS, INC.
144 Turnpike Road, Suite 210
Southborough, Massachusetts 01772-2104
T 508.366.0560 | www.bealsandthomas.com
(5'-0" [1524] MIN.)SOLIDS STORAGE SUMP
INLET PIPE, OPTIONAL
(IF PIPE IS REQUIRED,
INVERT IS 3" [76] HIGHER
THAN OUTLET INVERT)VARIES1'-3" [381] MIN.PLAN VIEW
TOP SLAB NOT SHOWN
SECTION A-A
12" [305]Ø
REMOVABLE
DROP TEE
FLOW
CONTRACTOR TO GROUT
TO FINISHED GRADE
GRADE RINGS/RISERS
(NOT PROVIDED BY CONTECH)
STORMCEPTOR
INSERT
PERMANENT
POOL ELEVATION
REMOVABLE
DROP TEE
HANDLE
1'-5" [432]1'-8" [508]WEIRA
A
4" [102]Ø
OUTLET
RISER
FLO
W
4" [102]Ø OIL
INSPECTION PIPE
(CAP OPTIONAL)
OUTLET PIPE
TOP SLAB ACCESS
(SEE FRAME AND
COVER DETAIL)
48" [1219]Ø I.D.
MANHOLE STRUCTURE+/-90°MAXBEALS AND THOMAS, INC.
144 Turnpike Road, Suite 210
Southborough, Massachusetts 01772-2104
T 508.366.0560 | www.bealsandthomas.com
MC-7200 TECHNICAL SPECIFICATIONS
PART #STUB B C
MC7200IEPP06T 6" (150 mm)42.54" (1081 mm)---
MC7200IEPP06B ---0.86" (22 mm)
MC7200IEPP08T 8" (200 mm)40.50" (1029 mm)---
MC7200IEPP08B ---1.01" (26 mm)
MC7200IEPP10T 10" (250 mm)38.37" (975 mm)---
MC7200IEPP10B ---1.33" (34 mm)
MC7200IEPP12T 12" (300 mm)35.69" (907 mm)---
MC7200IEPP12B ---1.55" (39 mm)
MC7200IEPP15T 15" (375 mm)32.72" (831 mm)---
MC7200IEPP15B ---1.70" (43 mm)
MC7200IEPP18T
18" (450 mm)
29.36" (746 mm)---MC7200IEPP18TW
MC7200IEPP18B ---1.97" (50 mm)
MC7200IEPP18BW
MC7200IEPP24T
24" (600 mm)
23.05" (585 mm)---MC7200IEPP24TW
MC7200IEPP24B ---2.26" (57 mm)
MC7200IEPP24BW
MC7200IEPP30BW 30" (750 mm)---2.95" (75 mm)
MC7200IEPP36BW 36" (900 mm)---3.25" (83 mm)
MC7200IEPP42BW 42" (1050 mm)---3.55" (90 mm)
NOTE: ALL DIMENSIONS ARE NOMINAL
NOMINAL CHAMBER SPECIFICATIONS
SIZE (W X H X INSTALLED LENGTH)100.0" X 60.0" X 79.1" (2540 mm X 1524 mm X 2010 mm)
CHAMBER STORAGE 175.9 CUBIC FEET (4.98 m³)
MINIMUM INSTALLED STORAGE*267.3 CUBIC FEET (7.56 m³)
WEIGHT (NOMINAL)205 lbs.(92.9 kg)
NOMINAL END CAP SPECIFICATIONS
SIZE (W X H X INSTALLED LENGTH)90.0" X 61.0" X 32.8" (2286 mm X 1549 mm X 833 mm)
END CAP STORAGE 39.5 CUBIC FEET (1.12 m³)
MINIMUM INSTALLED STORAGE*115.3 CUBIC FEET (3.26 m³)
WEIGHT (NOMINAL)90 lbs.(40.8 kg)
*ASSUMES 12" (305 mm) STONE ABOVE, 9" (229 mm) STONE FOUNDATION AND BETWEEN CHAMBERS,
12" (305 mm) STONE PERIMETER IN FRONT OF END CAPS AND 40% STONE POROSITY.
PARTIAL CUT HOLES AT BOTTOM OF END CAP FOR PART NUMBERS ENDING WITH "B"
PARTIAL CUT HOLES AT TOP OF END CAP FOR PART NUMBERS ENDING WITH "T"
END CAPS WITH A PREFABRICATED WELDED STUB END WITH "W"
B
C
83.4"
(2120 mm)
79.1"
(2010 mm)
INSTALLED
60.0"
(1524 mm)
100.0" (2540 mm)90.0" (2286 mm)
61.0"
(1549 mm)
32.8"
(833 mm)
INSTALLED
38.0"
(965 mm)
CUSTOM PREFABRICATED INVERTS
ARE AVAILABLE UPON REQUEST.
INVENTORIED MANIFOLDS INCLUDE
12-24" (300-600 mm) SIZE ON SIZE
AND 15-48" (375-1200 mm)
ECCENTRIC MANIFOLDS. CUSTOM
INVERT LOCATIONS ON THE MC-7200
END CAP CUT IN THE FIELD ARE NOT
RECOMMENDED FOR PIPE SIZES
GREATER THAN 10" (250 mm). THE
INVERT LOCATION IN COLUMN 'B'
ARE THE HIGHEST POSSIBLE FOR
THE PIPE SIZE.
UPPER JOINT
CORRUGATION
WEB
CREST
CREST
STIFFENING
RIB
VALLEY
STIFFENING RIB
BUILD ROW IN THIS DIRECTION
LOWER JOINT
CORRUGATION
FOOT
2
MC-7200 ISOLATOR ROW PLUS DETAIL
SUMP DEPTH TBD BY
SITE DESIGN ENGINEER
(24" [600 mm] MIN RECOMMENDED)
CATCH BASIN
OR MANHOLE
OPTIONAL INSPECTION PORT
MC-7200 END CAP
24" (600 mm) HDPE ACCESS PIPE REQUIRED
USE FACTORY PARTIAL CUT END CAP PART #:
MC7200IEPP24B OR MC7200IEPP24BW
STORMTECH HIGHLY RECOMMENDS
FLEXSTORM INSERTS IN ANY UPSTREAM
STRUCTURES WITH OPEN GRATES
COVER PIPE CONNECTION TO END CAP WITH ADS
GEOSYNTHETICS 601T NON-WOVEN GEOTEXTILE
ONE LAYER OF ADSPLUS125 WOVEN GEOTEXTILE BETWEEN
FOUNDATION STONE AND CHAMBERS
10.3' (3.1 m) MIN WIDE CONTINUOUS FABRIC WITHOUT SEAMS
ELEVATED BYPASS MANIFOLD
MC-7200 CHAMBER
INSTALL FLAMP ON 24" (600 mm) ACCESS PIPE
PART #: MCFLAMP
3
MC-7200 CROSS SECTION DETAIL
ACCEPTABLE FILL MATERIALS: STORMTECH MC-7200 CHAMBER SYSTEMS
PLEASE NOTE:
1.THE LISTED AASHTO DESIGNATIONS ARE FOR GRADATIONS ONLY. THE STONE MUST ALSO BE CLEAN, CRUSHED, ANGULAR. FOR EXAMPLE, A SPECIFICATION FOR #4 STONE WOULD STATE: "CLEAN, CRUSHED, ANGULAR NO. 4 (AASHTO M43) STONE".
2.STORMTECH COMPACTION REQUIREMENTS ARE MET FOR 'A' LOCATION MATERIALS WHEN PLACED AND COMPACTED IN 9" (230 mm) (MAX) LIFTS USING TWO FULL COVERAGES WITH A VIBRATORY COMPACTOR.
3.WHERE INFILTRATION SURFACES MAY BE COMPROMISED BY COMPACTION, FOR STANDARD DESIGN LOAD CONDITIONS, A FLAT SURFACE MAY BE ACHIEVED BY RAKING OR DRAGGING WITHOUT COMPACTION EQUIPMENT. FOR SPECIAL LOAD DESIGNS, CONTACT STORMTECH FOR
COMPACTION REQUIREMENTS.
4.ONCE LAYER 'C' IS PLACED, ANY SOIL/MATERIAL CAN BE PLACED IN LAYER 'D' UP TO THE FINISHED GRADE. MOST PAVEMENT SUBBASE SOILS CAN BE USED TO REPLACE THE MATERIAL REQUIREMENTS OF LAYER 'C' OR 'D' AT THE SITE DESIGN ENGINEER'S DISCRETION.
5.WHERE RECYCLED CONCRETE AGGREGATE IS USED IN LAYERS 'A' OR 'B' THE MATERIAL SHOULD ALSO MEET THE ACCEPTABILITY CRITERIA OUTLINED IN TECHNICAL NOTE 6.20 "RECYCLED CONCRETE STRUCTURAL BACKFILL".
NOTES:
1.CHAMBERS SHALL MEET THE REQUIREMENTS OF ASTM F2418, "STANDARD SPECIFICATION FOR POLYPROPYLENE (PP) CORRUGATED WALL STORMWATER COLLECTION CHAMBERS" CHAMBER CLASSIFICATION 60x101
2.MC-7200 CHAMBERS SHALL BE DESIGNED IN ACCORDANCE WITH ASTM F2787 "STANDARD PRACTICE FOR STRUCTURAL DESIGN OF THERMOPLASTIC CORRUGATED WALL STORMWATER COLLECTION CHAMBERS".
3.THE SITE DESIGN ENGINEER IS RESPONSIBLE FOR ASSESSING THE BEARING RESISTANCE (ALLOWABLE BEARING CAPACITY) OF THE SUBGRADE SOILS AND THE DEPTH OF FOUNDATION STONE WITH CONSIDERATION
FOR THE RANGE OF EXPECTED SOIL MOISTURE CONDITIONS.
4.PERIMETER STONE MUST BE EXTENDED HORIZONTALLY TO THE EXCAVATION WALL FOR BOTH VERTICAL AND SLOPED EXCAVATION WALLS.
5.REQUIREMENTS FOR HANDLING AND INSTALLATION:
·TO MAINTAIN THE WIDTH OF CHAMBERS DURING SHIPPING AND HANDLING, CHAMBERS SHALL HAVE INTEGRAL, INTERLOCKING STACKING LUGS.
·TO ENSURE A SECURE JOINT DURING INSTALLATION AND BACKFILL, THE HEIGHT OF THE CHAMBER JOINT SHALL NOT BE LESS THAN 3”.
·TO ENSURE THE INTEGRITY OF THE ARCH SHAPE DURING INSTALLATION, a) THE ARCH STIFFNESS CONSTANT AS DEFINED IN SECTION 6.2.8 OF ASTM F2418 SHALL BE GREATER THAN OR EQUAL TO 500 LBS/FT/%.
AND b) TO RESIST CHAMBER DEFORMATION DURING INSTALLATION AT ELEVATED TEMPERATURES (ABOVE 73° F / 23° C), CHAMBERS SHALL BE PRODUCED FROM REFLECTIVE GOLD OR YELLOW COLORS.
MATERIAL LOCATION DESCRIPTION AASHTO MATERIAL
CLASSIFICATIONS COMPACTION / DENSITY REQUIREMENT
D
FINAL FILL: FILL MATERIAL FOR LAYER 'D' STARTS FROM THE
TOP OF THE 'C' LAYER TO THE BOTTOM OF FLEXIBLE
PAVEMENT OR UNPAVED FINISHED GRADE ABOVE. NOTE THAT
PAVEMENT SUBBASE MAY BE PART OF THE 'D' LAYER
ANY SOIL/ROCK MATERIALS, NATIVE SOILS, OR PER ENGINEER'S PLANS.
CHECK PLANS FOR PAVEMENT SUBGRADE REQUIREMENTS.N/A
PREPARE PER SITE DESIGN ENGINEER'S PLANS. PAVED
INSTALLATIONS MAY HAVE STRINGENT MATERIAL AND
PREPARATION REQUIREMENTS.
C
INITIAL FILL: FILL MATERIAL FOR LAYER 'C' STARTS FROM THE
TOP OF THE EMBEDMENT STONE ('B' LAYER) TO 24" (600 mm)
ABOVE THE TOP OF THE CHAMBER. NOTE THAT PAVEMENT
SUBBASE MAY BE A PART OF THE 'C' LAYER.
GRANULAR WELL-GRADED SOIL/AGGREGATE MIXTURES, <35% FINES OR
PROCESSED AGGREGATE.
MOST PAVEMENT SUBBASE MATERIALS CAN BE USED IN LIEU OF THIS
LAYER.
AASHTO M145¹
A-1, A-2-4, A-3
OR
AASHTO M43¹
3, 357, 4, 467, 5, 56, 57, 6, 67, 68, 7, 78, 8, 89, 9, 10
BEGIN COMPACTIONS AFTER 24" (600 mm) OF MATERIAL OVER
THE CHAMBERS IS REACHED. COMPACT ADDITIONAL LAYERS IN
12" (300 mm) MAX LIFTS TO A MIN. 95% PROCTOR DENSITY FOR
WELL GRADED MATERIAL AND 95% RELATIVE DENSITY FOR
PROCESSED AGGREGATE MATERIALS.
B
EMBEDMENT STONE: FILL SURROUNDING THE CHAMBERS
FROM THE FOUNDATION STONE ('A' LAYER) TO THE 'C' LAYER
ABOVE.
CLEAN, CRUSHED, ANGULAR STONE OR RECYCLED CONCRETE5 AASHTO M43¹
3, 357, 4, 467, 5, 56, 57
A FOUNDATION STONE: FILL BELOW CHAMBERS FROM THE
SUBGRADE UP TO THE FOOT (BOTTOM) OF THE CHAMBER.CLEAN, CRUSHED, ANGULAR STONE OR RECYCLED CONCRETE5 AASHTO M43¹
3, 357, 4, 467, 5, 56, 57 PLATE COMPACT OR ROLL TO ACHIEVE A FLAT SURFACE.2,3
NO COMPACTION REQUIRED.
7.0'
(2.1 m)
MAX
24"
(600 mm) MIN*
12" (300 mm) MIN100" (2540 mm)
ADS GEOSYNTHETICS 601T NON-WOVEN GEOTEXTILE ALL AROUND
CLEAN, CRUSHED, ANGULAR STONE IN A & B LAYERS
12" (300 mm) MIN
12" (300 mm) MIN 9"
(230 mm) MIN
D
C
B
A
*TO BOTTOM OF FLEXIBLE PAVEMENT. FOR UNPAVED
INSTALLATIONS WHERE RUTTING FROM VEHICLES MAY OCCUR,
INCREASE COVER TO 30" (750 mm).
DEPTH OF STONE TO BE DETERMINED
BY SITE DESIGN ENGINEER 9" (230 mm) MIN
PERIMETER STONE
(SEE NOTE 4)
EXCAVATION WALL
(CAN BE SLOPED OR VERTICAL)
MC-7200
END CAP
SUBGRADE SOILS
(SEE NOTE 3)
PAVEMENT LAYER (DESIGNED
BY SITE DESIGN ENGINEER)
60"
(1524 mm)
**THIS CROSS SECTION DETAIL REPRESENTS
MINIMUM REQUIREMENTS FOR INSTALLATION.
PLEASE SEE THE LAYOUT SHEET(S) FOR
PROJECT SPECIFIC REQUIREMENTS.
1
NOTE: MANIFOLD STUB MUST BE LAID HORIZONTAL
FOR A PROPER FIT IN END CAP OPENING.
12" (300 mm)
MIN SEPARATION
12" (300 mm) MIN INSERTION
12" (300 mm)
MIN SEPARATION
12" (300 mm)
MIN INSERTION
MC-SERIES END CAP INSERTION DETAIL
MANIFOLD HEADER
MANIFOLD STUB
STORMTECH END CAP
MANIFOLD HEADER
MANIFOLD STUB
6
IMPORTANT - NOTES FOR THE BIDDING AND INSTALLATION OF MC-7200
CHAMBER SYSTEM
1.STORMTECH MC-7200 CHAMBERS SHALL NOT BE INSTALLED UNTIL THE MANUFACTURER'S
REPRESENTATIVE HAS COMPLETED A PRE-CONSTRUCTION MEETING WITH THE INSTALLERS.
2.STORMTECH MC-7200 CHAMBERS SHALL BE INSTALLED IN ACCORDANCE WITH THE "STORMTECH MC-7200
CONSTRUCTION GUIDE".
3.CHAMBERS ARE NOT TO BE BACKFILLED WITH A DOZER OR EXCAVATOR SITUATED OVER THE CHAMBERS.
STORMTECH RECOMMENDS 3 BACKFILL METHODS:
·STONESHOOTER LOCATED OFF THE CHAMBER BED.
·BACKFILL AS ROWS ARE BUILT USING AN EXCAVATOR ON THE FOUNDATION STONE OR SUBGRADE.
·BACKFILL FROM OUTSIDE THE EXCAVATION USING A LONG BOOM HOE OR EXCAVATOR.
4.THE FOUNDATION STONE SHALL BE LEVELED AND COMPACTED PRIOR TO PLACING CHAMBERS.
5.JOINTS BETWEEN CHAMBERS SHALL BE PROPERLY SEATED PRIOR TO PLACING STONE.
6.MAINTAIN MINIMUM - 9" (230 mm) SPACING BETWEEN THE CHAMBER ROWS.
7.INLET AND OUTLET MANIFOLDS MUST BE INSERTED A MINIMUM OF 12" (300 mm) INTO CHAMBER END CAPS.
8.EMBEDMENT STONE SURROUNDING CHAMBERS MUST BE A CLEAN, CRUSHED, ANGULAR STONE MEETING
THE AASHTO M43 DESIGNATION OF #3 OR #4.
9.STONE SHALL BE BROUGHT UP EVENLY AROUND CHAMBERS SO AS NOT TO DISTORT THE CHAMBER
SHAPE. STONE DEPTHS SHOULD NEVER DIFFER BY MORE THAN 12" (300 mm) BETWEEN ADJACENT
CHAMBER ROWS.
10.STONE MUST BE PLACED ON THE TOP CENTER OF THE CHAMBER TO ANCHOR THE CHAMBERS IN PLACE
AND PRESERVE ROW SPACING.
11.THE CONTRACTOR MUST REPORT ANY DISCREPANCIES WITH CHAMBER FOUNDATION MATERIAL BEARING
CAPACITIES TO THE SITE DESIGN ENGINEER.
12.ADS RECOMMENDS THE USE OF "FLEXSTORM CATCH IT" INSERTS DURING CONSTRUCTION FOR ALL INLETS
TO PROTECT THE SUBSURFACE STORMWATER MANAGEMENT SYSTEM FROM CONSTRUCTION SITE
RUNOFF.
NOTES FOR CONSTRUCTION EQUIPMENT
1.STORMTECH MC-7200 CHAMBERS SHALL BE INSTALLED IN ACCORDANCE WITH THE "STORMTECH MC-7200
CONSTRUCTION GUIDE".
2.THE USE OF EQUIPMENT OVER MC-7200 CHAMBERS IS LIMITED:
·NO EQUIPMENT IS ALLOWED ON BARE CHAMBERS.
·NO RUBBER TIRED LOADER, DUMP TRUCK, OR EXCAVATORS ARE ALLOWED UNTIL PROPER FILL
DEPTHS ARE REACHED IN ACCORDANCE WITH THE "STORMTECH MC-7200 CONSTRUCTION GUIDE".
·WEIGHT LIMITS FOR CONSTRUCTION EQUIPMENT CAN BE FOUND IN THE "STORMTECH MC-7200
CONSTRUCTION GUIDE".
3.FULL 36" (900 mm) OF STABILIZED COVER MATERIALS OVER THE CHAMBERS IS REQUIRED FOR DUMP
TRUCK TRAVEL OR DUMPING.
USE OF A DOZER TO PUSH EMBEDMENT STONE BETWEEN THE ROWS OF CHAMBERS MAY CAUSE DAMAGE TO
CHAMBERS AND IS NOT AN ACCEPTABLE BACKFILL METHOD. ANY CHAMBERS DAMAGED BY USING THE "DUMP
AND PUSH" METHOD ARE NOT COVERED UNDER THE STORMTECH STANDARD WARRANTY.
CONTACT STORMTECH AT 1-888-892-2694 WITH ANY QUESTIONS ON INSTALLATION REQUIREMENTS OR WEIGHT
LIMITS FOR CONSTRUCTION EQUIPMENT.
MC-7200 STORMTECH CHAMBER SPECIFICATIONS
1.CHAMBERS SHALL BE STORMTECH MC-7200.
2.CHAMBERS SHALL BE ARCH-SHAPED AND SHALL BE MANUFACTURED FROM VIRGIN, IMPACT-MODIFIED
POLYPROPYLENE COPOLYMERS.
3.CHAMBERS SHALL MEET THE REQUIREMENTS OF ASTM F2418-16a, "STANDARD SPECIFICATION FOR
POLYPROPYLENE (PP) CORRUGATED WALL STORMWATER COLLECTION CHAMBERS" CHAMBER
CLASSIFICATION 60x101.
4.CHAMBER ROWS SHALL PROVIDE CONTINUOUS, UNOBSTRUCTED INTERNAL SPACE WITH NO INTERNAL
SUPPORTS THAT WOULD IMPEDE FLOW OR LIMIT ACCESS FOR INSPECTION.
5.THE STRUCTURAL DESIGN OF THE CHAMBERS, THE STRUCTURAL BACKFILL, AND THE INSTALLATION
REQUIREMENTS SHALL ENSURE THAT THE LOAD FACTORS SPECIFIED IN THE AASHTO LRFD BRIDGE
DESIGN SPECIFICATIONS, SECTION 12.12, ARE MET FOR: 1) LONG-DURATION DEAD LOADS AND 2)
SHORT-DURATION LIVE LOADS, BASED ON THE AASHTO DESIGN TRUCK WITH CONSIDERATION FOR IMPACT
AND MULTIPLE VEHICLE PRESENCES.
6.CHAMBERS SHALL BE DESIGNED, TESTED AND ALLOWABLE LOAD CONFIGURATIONS DETERMINED IN
ACCORDANCE WITH ASTM F2787, "STANDARD PRACTICE FOR STRUCTURAL DESIGN OF THERMOPLASTIC
CORRUGATED WALL STORMWATER COLLECTION CHAMBERS". LOAD CONFIGURATIONS SHALL INCLUDE: 1)
INSTANTANEOUS (<1 MIN) AASHTO DESIGN TRUCK LIVE LOAD ON MINIMUM COVER 2) MAXIMUM PERMANENT
(75-YR) COVER LOAD AND 3) ALLOWABLE COVER WITH PARKED (1-WEEK) AASHTO DESIGN TRUCK.
7.REQUIREMENTS FOR HANDLING AND INSTALLATION:
·TO MAINTAIN THE WIDTH OF CHAMBERS DURING SHIPPING AND HANDLING, CHAMBERS SHALL HAVE
INTEGRAL, INTERLOCKING STACKING LUGS.
·TO ENSURE A SECURE JOINT DURING INSTALLATION AND BACKFILL, THE HEIGHT OF THE CHAMBER
JOINT SHALL NOT BE LESS THAN 3”.
·TO ENSURE THE INTEGRITY OF THE ARCH SHAPE DURING INSTALLATION, a) THE ARCH STIFFNESS
CONSTANT SHALL BE GREATER THAN OR EQUAL TO 450 LBS/IN/IN. THE ASC IS DEFINED IN SECTION
6.2.8 OF ASTM F2418 AND b) TO RESIST CHAMBER DEFORMATION DURING INSTALLATION AT ELEVATED
TEMPERATURES (ABOVE 73° F / 23° C), CHAMBERS SHALL BE PRODUCED FROM REFLECTIVE GOLD OR
YELLOW COLORS.
8.ONLY CHAMBERS THAT ARE APPROVED BY THE SITE DESIGN ENGINEER WILL BE ALLOWED. UPON
REQUEST BY THE SITE DESIGN ENGINEER OR OWNER, THE CHAMBER MANUFACTURER SHALL SUBMIT A
STRUCTURAL EVALUATION FOR APPROVAL BEFORE DELIVERING CHAMBERS TO THE PROJECT SITE AS
FOLLOWS:
·THE STRUCTURAL EVALUATION SHALL BE SEALED BY A REGISTERED PROFESSIONAL ENGINEER.
·THE STRUCTURAL EVALUATION SHALL DEMONSTRATE THAT THE SAFETY FACTORS ARE GREATER
THAN OR EQUAL TO 1.95 FOR DEAD LOAD AND 1.75 FOR LIVE LOAD, THE MINIMUM REQUIRED BY ASTM
F2787 AND BY SECTIONS 3 AND 12.12 OF THE AASHTO LRFD BRIDGE DESIGN SPECIFICATIONS FOR
THERMOPLASTIC PIPE.
·THE TEST DERIVED CREEP MODULUS AS SPECIFIED IN ASTM F2418 SHALL BE USED FOR PERMANENT
DEAD LOAD DESIGN EXCEPT THAT IT SHALL BE THE 75-YEAR MODULUS USED FOR DESIGN.
9.CHAMBERS AND END CAPS SHALL BE PRODUCED AT AN ISO 9001 CERTIFIED MANUFACTURING FACILITY.
INSPECTION & MAINTENANCE
STEP 1)INSPECT ISOLATOR ROW PLUS FOR SEDIMENT
A.INSPECTION PORTS (IF PRESENT)
A.1.REMOVE/OPEN LID ON NYLOPLAST INLINE DRAIN
A.2.REMOVE AND CLEAN FLEXSTORM FILTER IF INSTALLED
A.3.USING A FLASHLIGHT AND STADIA ROD, MEASURE DEPTH OF SEDIMENT AND RECORD ON MAINTENANCE LOG
A.4.LOWER A CAMERA INTO ISOLATOR ROW PLUS FOR VISUAL INSPECTION OF SEDIMENT LEVELS (OPTIONAL)
A.5.IF SEDIMENT IS AT, OR ABOVE, 3" (80 mm) PROCEED TO STEP 2. IF NOT, PROCEED TO STEP 3.
B.ALL ISOLATOR PLUS ROWS
B.1.REMOVE COVER FROM STRUCTURE AT UPSTREAM END OF ISOLATOR ROW PLUS
B.2.USING A FLASHLIGHT, INSPECT DOWN THE ISOLATOR ROW PLUS THROUGH OUTLET PIPE
i)MIRRORS ON POLES OR CAMERAS MAY BE USED TO AVOID A CONFINED SPACE ENTRY
ii)FOLLOW OSHA REGULATIONS FOR CONFINED SPACE ENTRY IF ENTERING MANHOLE
B.3.IF SEDIMENT IS AT, OR ABOVE, 3" (80 mm) PROCEED TO STEP 2. IF NOT, PROCEED TO STEP 3.
STEP 2)CLEAN OUT ISOLATOR ROW PLUS USING THE JETVAC PROCESS
A.A FIXED CULVERT CLEANING NOZZLE WITH REAR FACING SPREAD OF 45" (1.1 m) OR MORE IS PREFERRED
B.APPLY MULTIPLE PASSES OF JETVAC UNTIL BACKFLUSH WATER IS CLEAN
C.VACUUM STRUCTURE SUMP AS REQUIRED
STEP 3)REPLACE ALL COVERS, GRATES, FILTERS, AND LIDS; RECORD OBSERVATIONS AND ACTIONS.
STEP 4)INSPECT AND CLEAN BASINS AND MANHOLES UPSTREAM OF THE STORMTECH SYSTEM.
NOTES
1.INSPECT EVERY 6 MONTHS DURING THE FIRST YEAR OF OPERATION. ADJUST THE INSPECTION INTERVAL BASED ON PREVIOUS
OBSERVATIONS OF SEDIMENT ACCUMULATION AND HIGH WATER ELEVATIONS.
2.CONDUCT JETTING AND VACTORING ANNUALLY OR WHEN INSPECTION SHOWS THAT MAINTENANCE IS NECESSARY.
4" PVC INSPECTION PORT DETAIL (MC SERIES CHAMBER)
NOTE:
INSPECTION PORTS MAY BE CONNECTED THROUGH ANY CHAMBER CORRUGATION VALLEY.
STORMTECH CHAMBER
4" (100 mm) INSERTA TEE
TO BE CENTERED ON CORRUGATION VALLEY
CONCRETE COLLAR
ASPHALT OVERLAY FOR
TRAFFIC APPLICATIONS
12" (300 mm) MIN WIDTH
8" (200 mm) MIN THICKNESS OF ASPHALT
OVERLAY AND CONCRETE COLLAR
8" NYLOPLAST UNIVERSAL DRAIN BODY
(PART# 2708AG4IPKIT) OR TRAFFIC RATED
BOX W/SOLID LOCKING COVER
CONCRETE COLLAR / ASPHALT OVERLAY
NOT REQUIRED FOR GREENSPACE OR
NON-TRAFFIC APPLICATIONS
4" (100 mm) SDR 35 PIPE
NYLOPLAST 8" LOCKING SOLID
COVER AND FRAME
4
UNDERDRAIN DETAIL
A
A
B B
SECTION A-A
SECTION B-B
NUMBER AND SIZE OF UNDERDRAINS PER SITE DESIGN ENGINEER
4" (100 mm) TYP FOR SC-310 & SC-160LP SYSTEMS
6" (150 mm) TYP FOR SC-740, SC-800, DC-780, MC-3500, MC-4500 & MC-7200 SYSTEMS
OUTLET MANIFOLD
STORMTECH
END CAP
STORMTECH
CHAMBERS
STORMTECH
CHAMBER
STORMTECH
END CAP
DUAL WALL
PERFORATED
HDPE
UNDERDRAIN
ADS GEOSYNTHETICS 601T
NON-WOVEN GEOTEXTILE
ADS GEOSYNTHETICS 601T
NON-WOVEN GEOTEXTILE
FOUNDATION STONE
BENEATH CHAMBERS
FOUNDATION STONE
BENEATH CHAMBERS
5
GENERAL NOTES
1.CONTECH TO PROVIDE ALL MATERIALS UNLESS NOTED OTHERWISE.
2.FOR SITE SPECIFIC DRAWINGS WITH DETAILED STRUCTURE DIMENSIONS AND WEIGHT, PLEASE CONTACT YOUR CONTECH ENGINEERED
SOLUTIONS LLC REPRESENTATIVE. www.ContechES.com
3.STORMCEPTOR WATER QUALITY STRUCTURE SHALL BE IN ACCORDANCE WITH ALL DESIGN DATA AND INFORMATION CONTAINED IN THIS
DRAWING. CONTRACTOR TO CONFIRM STRUCTURE MEETS REQUIREMENTS OF PROJECT.
4.STORMCEPTOR STRUCTURE SHALL MEET AASHTO HS20 LOAD RATING, ASSUMING EARTH COVER OF 0' - 2' [610], AND GROUNDWATER
ELEVATION AT, OR BELOW, THE OUTLET PIPE INVERT ELEVATION. ENGINEER OF RECORD TO CONFIRM ACTUAL GROUNDWATER ELEVATION.
CASTINGS SHALL MEET AASHTO M306 AND BE CAST WITH THE CONTECH LOGO.
5.STORMCEPTOR STRUCTURE SHALL BE PRECAST CONCRETE CONFORMING TO ASTM C478 AND AASHTO LOAD FACTOR DESIGN METHOD.
6.ALTERNATE UNITS ARE SHOWN IN MILLIMETERS [mm].
INSTALLATION NOTES
A.ANY SUB-BASE, BACKFILL DEPTH, AND/OR ANTI-FLOTATION PROVISIONS ARE SITE-SPECIFIC DESIGN CONSIDERATIONS AND SHALL BE
SPECIFIED BY ENGINEER OF RECORD.
B.CONTRACTOR TO PROVIDE EQUIPMENT WITH SUFFICIENT LIFTING AND REACH CAPACITY TO LIFT AND SET THE STORMCEPTOR MANHOLE
STRUCTURE.
C.CONTRACTOR TO INSTALL JOINT SEALANT BETWEEN ALL STRUCTURE SECTIONS AND ASSEMBLE STRUCTURE.
D.CONTRACTOR TO PROVIDE, INSTALL, AND GROUT INLET AND OUTLET PIPE(S). MATCH PIPE INVERTS WITH ELEVATIONS SHOWN. ALL PIPE
CENTERLINES TO MATCH PIPE OPENING CENTERLINES.
E.CONTRACTOR TO TAKE APPROPRIATE MEASURES TO ASSURE UNIT IS WATER TIGHT, HOLDING WATER TO FLOWLINE INVERT MINIMUM. IT IS
SUGGESTED THAT ALL JOINTS BELOW PIPE INVERTS ARE GROUTED.
www.ContechES.com
®
FRAME AND COVER
(MAY VARY)
NOT TO SCALE
NOTE:
WATER QUALITY UNIT TO BE CONTECH STORMSCEPTOR 450i OR APPROVED EQUAL