HomeMy WebLinkAbout7427 Triangle Dr - Special Inspections/Engineering - 05/24/2004May 24, 2004
DR Horton, Melody Series
11031 Sheridan Blvd.
Westminster, Colorado 80020
Attn: Mr. Corey Weaver
Re: Exterior Perimeter Drain Observation
Ridgewood Hills 3'd Filing
7427 Triangle Drive- Lot 165
Fort Collins, Colorado
Terracon Project No. 20005162
1 rercan
301 N. Howes • P.O. Box 503
Fort Collins, Colorado 80521-0503
(970) 484-0359 Fax: (970) 484-0454
A representative of Terracon observed the perimeter drain at the above referenced address on May
17, 2004, as requested. A four -inch diameter perforated PVC pipe had been placed around the
exterior perimeter of the basement foundation with an impervious PVC membrane beneath the
drainage system. The drainage pipe appeared to exhibit positive drainage toward the sump pit
located within the basement area. We also observed 1 to 1 %2-inch washed gravel placed above and
below the pipe and drainage filter fabric above the gravel. The waterproof dampening was also
observed and in our opinion was uniformly applied to the exterior foundations.
In our opinion the exterior perimeter drain was constructed in general accordance with the plans and
specifications for this project.
Sincerely,
TERRACON Reviewed By:
ac
Benjamin D. Ruder, E.I. David A. Richer,
Staff Engineer Geotechnical Engin
Copies to: (2) Addressee
(1) Brian Kelly — DR Horton, Melody Series
Manager
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