Hansz/Revised Waterford PlansMEMORANDUM
April 14,1999
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To: Al Thelen, Interim City Manager
Glen Neier, City Attorney
From: Jim Hansz, Director of Public Works
Is
Subject: Waterford Site and Utility Plans Dated ApDr 14,19919
Today the engineer for the Waterford delivered a revised set of plans for the site and the
utilities. An initial review of these plans shows there have been significant revisions of the
water, storm drainage, structures, and roadways from the plan submitted in January. We are not
able to perfonn a thorough review of these plans in time to have a complete analysis and
recommendations for the City Council meeting on April 19". Preliminary items noted:
Structures: The number of cottage units is the same at 27. This is comprised of 14
duplex units and one triplex unit. The main building complex is revised and will house 279.
Buildings have been located nearer to the boundary and this required relocation of some
roadway. The surrounding grounds have been revised and access is altered.
Parking: Changes include straight in parking on the loop road that would require backing
into the roadway. The number of spaces has not been compared.
Roadway: As noted, alignment has been revised to move some of the road nearer to the
property boundary. The extension of Summit Ridge is indicated as a 60 foot ROW dedication
for the length of the property, roughly 200 feet.
Grading: No grading plan has been provided. There is an approximate sixty -foot
elevation change for the hilltop to the lower comer of the property. The submitted plan does not
indicate how this will be accomplished, where there will be filled or cut areas and how cuts/fills
will impact neighboring property.
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Stoim Drainage: Facilities have been shown moved off the property to neighboring
property in the county. Discharge from the storin water ponds is indicated. City standards state
that post -development flow increases are to be retained. The City could consider allowing
discharge if adequate down stream mitigation is provided. The plans give no information to
assess the adequacy of the identified detention ponds to handle flow from the property. No down
stream facilities are identified. No easements for off -site facilities are referenced. No
coordination with the County or other affected parties is indicated. Sizes of piping have been
detennined and locations of inlets are shown. Permits for any proposed storm water discharge to
the unnained tributary of Spring, Creek may be required from a variety of controlling agencies.
Water: The plan indicates the concept of a master meter located near the pressure booster
station. This has not been approved. The revised structure plan indicates an increase in the
number of actual connections to the buildings. The size of connections is not identified. The
increased number of connections could affect the previously estimated comiection fee. The PUD
agreement should reference that fees will be based on the actual size and number of connections.
Pipe sizes have been identified on the plans. Other details have not been specified. The pipe
schematic appears to contain an error in drawing near the booster station. The utilities in the
extension of Summit Ridge Drive should be constructed to the west boundary. This is required
by City policy. This was missed on earlier reviews. Facilities off -site in Four Mile Drive are not
fully shown. Roadways are identified as "60 foot utility corridors." Portions of the water system
are not located in the road right of way utility corridor.
Sewer: Pipe sizes are not shown but the schematic shows the proposed plan for alignment
and connection to the existing sewer in Summit Ridge Drive.