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11-12-19-R
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11-12-19-R
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CONSENT ITEM — 6G <br />,--iRZEN HILLS <br />MEMORANDUM <br />DATE: November 12, 2019 <br />TO: Honorable Mayor and City Councilmembers <br />David Perrault, City Administrator <br />FROM: David Swearingen, Senior Engineering Technician <br />Todd Blomstrom, Interim Public Works Director/City Engineer <br />SUBJECT: Colleen Avenue Storm Drainage Improvements - Payment No. 2, Change Order <br />No. 3 & Change Order No. 4 <br />Budgeted Amount: Actual Amount: Funding Source: <br />$325,389.00 $334,642.10 Surface Water Fund <br />Council Should Consider <br />The council is requested to approve the following items for the Colleen Avenue Storm Drain <br />Improvements project: <br />■ Payment No. 2 in the amount of $117,043.60 <br />■ Change Order No. 3 in the amount of $2,897.10 <br />■ Change Order No. 4 in the amount of $1,100.00 <br />Background/Discussion <br />On June 10, 2019, the City Council adopted Resolution #2019-020 awarding the Colleen Avenue <br />Drainage Improvements contract to Pember Companies, Inc. in the amount of $250,247.00. On <br />October 14, 2019, the City Council approved Payment No. 1 in the amount of $129,066.56. The <br />contractor began the project on September 13, 2019 and since has completed 100% of <br />construction and the project has reached substantial completion. A final punch list has been <br />submitted to Pember Companies to finish the project while a 5% retainage of $12,953.19 is held. <br />Project progress Payment No. 2 is provided in Attachment B. <br />During the submittal and review process for storm sewer structures, the manufacturer (Hancock) <br />determined it was impossible to create a 48" structure as designed. Having three openings for <br />pipes, one being for a 24" pipe, this would cause the structure to lose its integrity. The solution <br />was to upsize the structure to 60" to better fit all the pipes and keep structural strength. The cost <br />to upsize the drainage structure is $2,897.10 as provided in Attachment C. <br />Page 1 of 2 <br />
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