CCP 11-30-1998 - Laserfiche WebLink

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. - ""ACt! A 't 'b '[ /I--' , HI . flBRW MEMORANDUM '---- . ;." ., A't:iAMES&. MOOREGRciJf'05MP,iNY BRW Thresher Square 700 South Third Street Minneapolis, MN 55415 Phone: (612)370-0700 Fax: (612) 370-1378 To: Brian Fritsinger/City Administrator File:379510028001 From: Greg Brown/BRW, Arden Hills City Engineer Date: November 20, 1998 Subject: Round Lake Road Phase 2 Cost Comparison We have reviewed the cost estimate figures presented at the November 9, 1998 Council meeting to insure that a fair comparison has been made between Alternatives B and D. The fol1owing is a tabulated breakdown of costs for each allernative. I had mentioned at the meeting that the . estimated cost for Alternative B had been reduced from the estimate provided in the original feasibility report as a result of receiving preliminary soil boring information, Alternative B Altemlltive D Di fferffice Roadway Improvements $1,201,290.00 $1,039,675.00 $161,615.00 Storm Sewer Improvements $ 297 ,000.00 $ 245,110.00 $ 51,890.00 Watermain Improvements $ 230,550.00 $ 230,550.00 $ 0.00 Right of Way Acquisition $ 25,000.00 $ 0.00 $ 25,000.00 Perm. Easement Acquisition $ 28,000 00 $ 28 500 00 $ 000 $1,781,840.00 $1,543,835.00 $238,005.00 Dj!i;~lIssion Alternative B has a 15% wider footprint than Alternative D. The bituminous area of Alternative B is approximately 1200 square meters less than Alternative D however the total prepared base area of Alternative B is approximately 600 square meters greater than Alternative D due to the larger amount of curb & gutter (due to median islands) included with Alternative B. The net effect of these differences results in approximately $46,400.00 of additional cost for Alternative B. The larger footprint of Alternative B is reflected in additional common excavation costs and retaining wal1 costs (primarily along the Nott Company property) totaling $48,150.00. Alternative B would also require additional sodding of medians and at a minimum, the instal1ation of irrigation sleeves for the median areas which is estimated to cost approximately $18,400.00. Alternative B traffic control costs are anticipated to be less than Alternative D . however, the TCAAP wel1heads would be located within the roadway in Alternative B which would likely result in additional costs associated with relocation of storm sewer trunk line or possible modification/relocation costs of the wel1s themselves. Other minor cost differences U:\WPDOCS\ARDENHILI.ROUNDLAK\COSTCOMP.ME~1