From: 	Will Conway <wconway@sebagotechnics.com>
To:	Helen Donaldson <HCD@portlandmaine.gov>
CC:	Joe Dasco <joedasco@comcast.net>, Ali Malone <ali.malone@gmail.com>, Matthew Gagnon <mgagnon@landryfrenchconstruction.com>
Date: 	11/6/2014 1:38 PM
Subject: 	Fwd: Seaport Lofts - Monitoring Information

Nell, See below from Landry French and please let me know if this satisfies the request for clarification of our monitoring plan.

 To supplement our submittal on monitoring, we will set control points prior to construction on any existing structures behind the Retaining wall and at about every 25’ along the Retaining wall itself.  We will also set points along the North elevation wall of the house labeled M on Civil Sheet 1 of 12.  We will check these points for movement both vertically and horizontally during excavation to verify that no movement has occurred.  These checks will be done using a Total Station survey instrument. After the new wall and foundation  is installed and after backfilling we will check them again.  It should be noted that we were very conservative in our excavation support design with respect to the soil conditions because of these existing structures and sensitivity of the soil.  The structure has 2 levels of bracing which will minimize any potential risk of movement.

Matthew Gagnon, Leed A.P.
Project Manager

Landry/French Construction Company
160 Pleasant Hill Road
Scarborough, ME  04074
P. 207‑730‑5566/F. 207‑730‑5567
Cell 207‑219‑0015
www.landryfrenchconstruction.com<http://www.landryfrenchconstruction.com/>
http://www.facebook.com/LandryFrenchConstruction