HomeMy WebLinkAbout23SITE1 689 OCR AppResponse to TE Comments 021623CIVILWORKS NEW ENGLAND
71 7th STREET – P.O. BOX 161, TURNERS FALLS, MA 01376
181 WATSON ROAD - P.O. BOX 1166, DOVER, NH 03821
1 | 689 Old Colchester Road, Uncasville, CT
February 16, 2023
Ms. Liz Burdick, Director
Town of Montville
Department of Land Use and Development
310 Norwich-New London Turnpike
Uncasville, CT 06382
Re: Atlantic Broadband (CT), LLC
689 Old Colchester Road, Uncasville, CT
Parcel ID: 030-089-00A
CNE Reference No. 22102
Dear Director Burdick:
On behalf of Atlantic Broadband (CT), LLC (“Breezeline”), Civilworks New England
(CNE) hereby submits this response to comments received from CLA Engineers, Inc. on
the site plan submission associated with the redevelopment and improvement of the
existing Breezeline telecommunication/broadband facility at the above referenced
location.
CLA Engineers comments are provided below along with our responses to each in
italics.
The 13 sheet site plan set entitled Site Plan Breezeline Uncasville, CT and Stormwater
Management Report by CNE, both documents as revised 02/13/23, are being
resubmitted with this letter.
1. The signage for handicap parking must be shown in accordance with CT standards.
Response: A handicap parking sign that complies with CT standards has been added
to the details on the site plan set (sheet 10).
2. Limits of clearing must be shown.
Response: The limit of clearing line has been added to the Site Plan.
3. A note must be added to the plan regarding exterior lighting with full cut off at the
property lines.
Response: The requested note has been added to the Utility Plan (sheet 6, upper right
corner). It should be noted that the number of pole-mounted site light fixtures has been
reduced to one.
CIVILWORKS NEW ENGLAND
71 7th STREET – P.O. BOX 161, TURNERS FALLS, MA 01376
181 WATSON ROAD - P.O. BOX 1166, DOVER, NH 03821
2 | 689 Old Colchester Road, Uncasville, CT
4. The weir detail indicates riprap on both sides of the weir, it must be coordinated with
the site plan.
Response: The weir has been modified with the re-designed stormwater management
system and detailed accordingly. The rip-rap has also been clarified and coordinated
with the Grading and Drainage Plan (sheet 5) as revised.
5. Is a dumpster pad proposed for the site?
Response: A 2 cu.yd. dumpster is proposed. This is now depicted on the Site Plan
(sheet 4) along with a concrete pad and gated enclosure fence. Details for such are
provided on sheet 10.
6. Stormwater quality calculations must be submitted.
Response: Stormwater quality calculations for Water Quality Volume (WQV) and
sediment forebay are provided. The infiltration basin has been modified so that the
WQV is entirely retained within the infiltration basin below the outlet weir slot invert.
And, the forebay volume provided on the plan is approximately 3 times the required
volume to be conservative. The basin modifications and forebay are depicted on the
Grading and Drainage Plan and details for such are provided on sheet 12.
7. A temporary sediment pond must be shown with supporting calculations.
Response: A temporary construction-stage sediment basin is shown, along with
supporting calculations, on the Erosion & Sediment Control Plan (sheet 7).
8. The site conditions and spot grading appear either to allow ponding and/or to direct
flow towards the neighbor’s home.
Response: Available GIS contours from CT sources have been added to the site plan
downgradient of the infiltration basin to demonstrate that runoff will not be directed
towards the neighbor’s house. Further, the outlet of the basin has been moved to the
northwest so that overflow is directed down the side of the site driveway. Peak flow
rates and volumes of runoff to the abutting property will be reduced for all design storms
at both design points.
9. A planted buffer may be appropriate at the southerly corner of the site.
Response: Five (5) evergreen trees are provided in the southwest corner of the site to
provide an enhanced vegetated buffer to the neighbor.
CIVILWORKS NEW ENGLAND
71 7th STREET – P.O. BOX 161, TURNERS FALLS, MA 01376
181 WATSON ROAD - P.O. BOX 1166, DOVER, NH 03821
3 | 689 Old Colchester Road, Uncasville, CT
10. The E&S Control Plan must be site specific.
Response: A site specific Erosion & Sediment Control Plan (sheet 7), Erosion &
Sediment Control Notes (sheet 8) and Erosion & Sediment Control Details (sheet 9) are
now provided in the plan set.
11. An E&S Control Bond Estimate must be provided for review.
Response: A site contractor or Construction Manager, who has estimated the amount
for erosion and sediment control, is not yet on the project team. However, CNE
estimates the cost of erosion and sediment control to be approximately $5,339 as
indicated in the enclosed spreadsheet. Adding a 10 percent contingency to this amount
results in a E&S Control Bond Estimate of $5,875.
Thank you for your continued attention to this matter. Please feel free to contact me
directly if you should have any questions or require any additional information.
Very truly yours,
CIVILWORKS NEW ENGLAND
Mark E. Beaudry, PE
Senior Project Manager
Copy: John Lavin, Atlantic Broadband (CT), LLC
John Tuttle, KT|W Designs PLLC