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Case #13: Award Contract for Construction of Water Tower No. 2
<br />
<br />City Engineer Jankowski stated that on June 20, 2000 bid proposals were received from four
<br />proposers for their different style of elevated 1.5 million gallon water towers. The styles for
<br />bidding included: a) a fluted steel column (similar to the City of Champlin), b) a spheriod (like
<br />the City's existing 0.5 million gallon tank), and c) the composite (similar to the fluted steel
<br />tower, but with a masonry column). The Council was interested in obtaining an alternate bid for
<br />an early completed date for the tower so that it could be in use to meet the peak demand period of
<br />the summer of 2001. Below are the results of the bidding:
<br />
<br />Bidder Fluted Column Spheroid Composite
<br />PDM $1,443,000 $1,595,000 $1,408,000
<br /> ($1,445,000) ($1,607,000) ($1,408,000)
<br />CBI No Bid $2,056,500 $1,984,500
<br /> (No Bid) (No Bid) (No Bid)
<br />Landmark No Bid No Bid $1,394,000
<br /> (No Bid) (No Bid) ($1,459,000)
<br />Caldwell $1,568,100 No Bid No Bid
<br /> ($1,758,000) (No Bid) (No Bid)
<br />
<br />City Engineer Jankowski explained that the base bid is for a completion date of October 15,
<br />2001. The bid for early completion date of June 18, 2001, is shown in parenthesis. The Capital
<br />Improvement Plan shows the overall budget for the project estimated at $1,870,000. The design
<br />and construction services from AEC Engineering for the tank are $102,800.00, leaving a
<br />remaining budget of $1,767,200 for construction. Staff recommended that the early construction
<br />date be elected for the fluted column steel tank, and awarded to PDM in the amount of
<br />$1,445,000. The steel fluted tank was selected over the composite tank for several reasons.
<br />First, the steel tank can last nearly indefinitely. There are many steel tanks, which are over 100
<br />years old. The composite tank however, has a masonry concrete base and has been widespread
<br />use for only 10 to 15 years and mostly in the south which is less subject to freeze/thaw cycles. A
<br />second concern with masonry base is the high maintenance cost of sandblasting if it becomes the
<br />target of graffiti. Graffiti can be washed off a painted steel tank comparatively easily with a
<br />chemical solvent. One of the ancillary benefits of either water tank is the storage available
<br />within the base of the tank. However, the steel tank has a radius of 25 feet which is six feet
<br />longer than the composite giving the steel tank nearly 30% more storage area inside its base than
<br />the composite tank.
<br />
<br />Councihnember Zimmerman inquired if the ladder will be on the inside or outside of the tank.
<br />
<br />City Engineer Jankowski replied on the inside.
<br />
<br />Motion by Councilmember Hendriksen, seconded by Councilmember Zimmerman, to adopt
<br />Resolution #00-06~164 awarding the contract for Water Tower No. 2 to PDM in the amount of
<br />$1,445,000.00 for the early completion date of June 18, 2001.
<br />
<br />City Council/June 27, 2000
<br />Page 21 of 26
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