HomeMy WebLinkAboutLAGRANGE @ RIGDEN FARM REPLAT - MAJOR AMENDMENT - MJA130005 - SUBMITTAL DOCUMENTS - ROUND 1 - DRAINAGE REPORT1
City of Fort Collins
Engineering Review
281 North College
Fort Collins, Colorado 80522
July 3, 2013
RE: Drainage Memorandum
Lagrange at Rigden Farm
Fort Collins, Colorado
Project Number: 374-008
Dear Staff:
Northern Engineering Services is pleased to submit this Drainage Memorandum in
conjunction with the PDP for Lagrange at Rigden Farm for your consideration.
The footprints of the buildings within Lagrange have been modified next to the existing
pond and per the Cities request a grading plan is being submitted. The grading was revised to
address the new footprint. The resulting grading changes have had no major effect on the flow
volume to the ultimate drainage destination (the inlet for basin 104b, the inlet for Basins 111a-
111f or the pond for basin 105a-105b). Please see the drainage and erosion control plan for
reference. There will be no revisions to the storm infrastructure or the existing pond with this
development.
We feel that the current proposed grading and drainage plan is in compliance with the
concepts shown in the approved Final Drainage and Erosion Control Study for Rigden Farm
Second Filing. If you have any questions, please feel free to contact me at your earliest
convenience.
Sincerely,
NORTHERN ENGINEERING SERVICES, INC.
James Prelog, P.E.