HomeMy WebLinkAbout2004-03-04 Drainage Report SPR andover
consultants 1 Fast River Place
Inc. Methuen, Massachusetts 01844
Tel, (978) 687-3828
Fax(978) 686-5100
DRAINAGE REPORT
for
MacLeod Hanger
This project will result in 8,030 SF of new impervious area consisting of 6,001 SF of
rooftop and 2,029 SF of pavement. See Site Plan prepared by Andover Consultants Inc.
dated January 22, 2004.
There is a recently completed pavement removal project for Runway"Echo"which
removed approximately 26,800 SF of pavement. This information is shown on plans
entitled Construction of Airport Improvements prepared by Dufrense-Henry dated April
2003. Portions of those plans are attached.
Comparing both projects, there is a net reduction of 70% impervious area. Given that
:both projects are in the same watershed, the combined peak rate of stormwater runoff
from both project areas will result in a reduction of peak rates under post-construction
conditions.
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Civil Engineers • Land Surveyors • Land Planners