02-20-2007 Planning Commission Packet

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Mr. Michael Gaffron )anuary 31, 2007 - Ci.ty�fS�r�ii.o� ------ -------------__--�--------__.---- --� P_�g�2 • S1nit�►ry sewer anci watermlin plan ancl profile sheets shoulcl b� includecl in the final plans. They are indudecl in this submittal. • Engineered ret�ining wall clesign ancl cletaiis sl�oulcl be submillecl for i•eview ancl lpproval for ail walls over 4 feet in height or for tierecl wal Is that have less than two times fihe wall height in separation. These will be submittecl c►nder se��arate cover by Inte�sp��ce West. • The proposecl hyclrant between fihe two north builclings should be moved so ihat it is pei•penclicular to tfie clownstre�m pipe. This hych•ant has been moved to accommodat�e th�n�w parking lot layout. • Tlie pro�osecl 10.3% slope on the sanitary sewer is too steep. The slo��e slioulcl be reducecl to at least 5%. This may require an outsicle drop structure. The sa��itary sewei•h�s been revisec!accorclingly�ncl the profile is also inclucled. � • The proposecl entrance to the site from the future roacl shoulcl be clesigned to accommoclate future access from tlie west, as well as fi•om the east. Tlie current � � config�n-ltion woulcl req�iire a turn of almost 180 degrees for vehicles coming from the west, and is not feasible. The pro��osecl entrance and fuhire�ccess roacl have�een redesigned per cliscussions at the Planning Commission and at a meeting with Ntike Gaffron ancl Tom KeJlogg. • Tlie ��lans appear to show tliat several existing retlining walls tl�at are located on the neigliboring property to tl�e west will be removecl, ancl new retaining walls will be constructed in the same location. The 1�plicant shoulcl provicle proof of the ability to compfete this work off-site. This will be submii�tecl�mder separate cover by lnl�e�space Wesl�. • Tlie gracling ��lan cloes not properly iclentify the 1oc11 emergency overflow for the storm water CB-14; locatecl to the east of the soutli builcling. It ap�ear-s that wl�ile an elevalion of 1002.50 is iclentifiecl as the EOF, the actual EOF is tlie poinl just north of tl�e Ca witli an elevation of 1003.10. This is only 0.4' less ihan tlie builcling �levation. The gracling �lan should be revised such that the EOF is at least 1' lower thln lhe builcling elevltion. The EOF's have been revised t�o be 1'below the b��semenl�elevations. • Plans should be submitted to the Fire Marshall for review ancl a�prov�l. • Pei•email from Mike Gaffron the Fire Marsh111 will i�nake further comment once these plans ai•e submill�d, but preliminarily he mlde the comments: 1. Revisions to parking islancls need to be macl� to �ns�n•e wide enough turning access. �