HomeMy WebLinkAbout20050808 CORRESPONDENCE NEW ENGLAND 1 V1
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2005 MAY 21 A 11: 59
May 26, 2005
Lincoln Daley
North Andover Planning Board
400 Osgood Street
North Andover,MA 01845
Re 249 Marble Ridge Rgad
he d, pial permit application
Dear Lincoln;
This letter is being sent to the Planning Board in order to grant an extension of time to act
on the above referenced submittals. The extension is being granted twJtm 5:
If you have any questions or need additional information please do not hesitate to contact
this office.
Regards,
Z C=
Benjamin C., Osgood, PE.
President
RECEIVED
MAY 2 6 2005
`F T ENT
60 BEECHWOOD DRIVE-NORTH ANDOVER, MA 01845-(978)686-1768-(888)359-7645-FAX(978)685-1099
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NEW ENGLAND 11=1-NGINEERING SERVICES
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May 26, 2005
Lincoln Daley
North Andover Planning Board
400 Osgood Street
North Andover, MA 01845
Re: 249 Marble Ridge Road RECEIVED
Watershed special permit application MAY 2 R
Dear Lincoln:
Enclosed are revised plans and drainage calculations for the above referenced property.
Both sets of documents have been revised to address the items in a letter dated 4/25/05
from VHB. The comments have been addressed as follows:
1. The zoning board is in the process of holding hearings regarding the variances
requested.
2. The zoning board application has been revised to reflect the need for the
additional variances noted.
3. Plan views of the infiltrator systems have been added to the detail sheet of the
plans.
4. A foundation drain detail has been provided on the detail sheet of the plans.
5. The direction of runoff has been added to the haybale detail.
6. The pipe lengths have been added to the plans.
7. The piping system for the infiltrators has been added to the plans.
8. The time span used in the drainage calculations has been increased from 0 to 48
hours for all storms in the pre and post condition.
9. A second catch basin has been added on the south side of the driveway.
10.
a. The time of concentration calculations have been revised to reflect the
presence of the driveway.
b. The swales have been modeled as channel flow.
c. The pipe slope has been corrected.
d. The manning factor for PVC has been changed to 0.11 on all calculations.
60 BEECIMOOD DRIVE-NORTIA ANDOVER, MA 01845-(978)686-1768-(888)359-7645.. FAX(978)685-1099
..........
11. The storage in the infiltrators has been modeled more correctly. This office has
obtained a more recent version of Hydrocad which models the chambers as
embedded inside the stone.
12. Exfiltration has been eliminated in the calculations. Percolation test data has been
provided on the detail sheet.
13. The pipe has been modeled as a 6"PVC with the correct manning number. The
outlet pipe elevation has been revised to correspond with the top of the stone in
the infiltrator system.A detail of the overflow pipe connection has been provided.
14. The calculations have been revised using a summation pond for the pre-
development condition.
I will be at Your June 21, 2005 meeting to discuss this matter. If you have any questions
or need additional information please do not hesitate to contact this office.
Regards,
(z-51 C/-il C. ' �
Benjam , Osgoo �, P7E.
President
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NEW ENGLAND ENGINEERING SERVICES
INC
May 3, 2005
Mr. Lincoln Daley
Town Planner
400 Osgood Street
North Andover, MA 01845
Re: 249 Marbleridge Road North Andover, MA
Request for Continuance
Dear Mr. Daley,
The purpose of this letter is to request a continuance of the hearing for the
aforementioned property. Our office has recently received feedback from review firm and
is addressing the comments for the next planning board meeting.
Therefore, we respectfully request a continuance of the special permit hearing for the
subject property to the May 17, 2005 planning board meeting.
If you have any comments or questions please do not hesitate to contact this office.
Sincerely,
Benjamin C. Osgood, Jr., E.
President
60 BEECHWOOD DRIVE-NORTH ANDOVER, MA 01845-(978)686-1768-(888)359-7645- rAX(978)685-1099