Background/Discussion
On February 12, 2020, bids were received in the office of the city clerk as follows:
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Base Bid
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Alternate No. 1
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Total
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Alternate
No. 2
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Unit Cost for Propylene Glycol
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Rasmussen Mechanical Services Inc, Council Bluffs, IA
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$37/gal, $65 drum deposit
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$238,642.00
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$14,750.00
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$6,800.00
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MCC Contractors, Omaha, NE
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$177,850.00
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$12,870.00
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$10,760.00
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$19.55/gal
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Engineer’s Estimate (Engineering Technologies Inc)
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$199,685.00
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n/a
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$199,685.00
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n/a
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n/a
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Two alternate bids were requested for this project. Alternate No. 1 was a bid to replace the hot water heating pump motor starter with a Variable Frequency Drive and provide a differential pressure sensor to control the pump speed. Alternate No. 2 was a bid to cap the bypass leg of the 3-way control valves serving several of the heating coils. Both of the alternatives would increase the building’s energy efficiency and reduce energy costs.
Unit pricing for the propylene glycol was requested in the event additional product is needed beyond the estimated quantity in the base bid.
Based on the bids received, it is recommended that Alternate No. 1 be accepted.
The Council Bluffs Carnegie Free Public Library was renovated in 2002 and the Union Pacific Railroad Museum has occupied the building since May of 2003. The boiler and chiller have reached the end of the industry’s standard life expectancy for these types of equipment.
Replacement of this equipment will reduce energy costs and will provide a more reliable environment for the Union Pacific’s Historical Collection.
The project was included in the FY20 CIP with funding from the General Fund.
The project is scheduled to be completed by June 30, 2020.