CR 93-15 CO #4 Knollwood St
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January 26, 1993 o p ~ council Report 93-15
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/ APPROVE CHANGE ORDER NO. 4
j KNOLLWOOD STREET RECONSTRUCTION
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Proposed Action.
Staff recommends adoption of the following motion: Move that
Council authorize Change Order No. 4 as it concerns the Knollwood
street Reconstruction Proiect.
Overview
Council in previous action has approved three other change orders
that have arisen mainly because of poor subgrade soils at the
Knollwood site. The consultant engineer hopes this request
represents final quantities to correct the roadway.
I primary Issues to Consider
0 What is the justification for a change order?
The first three items relate to.. correction of the subgrade
soils. Previous analyses for Change Orders 1-3 discussed in
detail the soil conditions and the various special methods
and materials to address the substandard conditions.
The final item concerns the use of red driveway rock needed
to make final repairs at a residence.
0 What are the costs?
The net total change is an addition of $12,611.30
0 Staff recommendation.
Staff concurs with RLK Associates' assessment and recommends
Council authorization of this change order.
supporting Information
0 Change Order No. 4
0 Supporting letter from RLK Associates
.1' ~ ~
James Gessele
Engineering Superintendent
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, RLK Associate'. Ltd. CHANGE ORDER NO.4
922 Mainstreet
Hopkins, MN 55343 Date: December 31,1992
TO: Widmer, Inc. . Project No, & Desc.
P,O. Box 219 90-01
St. Bonifacius, MN 55375 Knollwood Neighborhood
Contract Date: June 10, 1992
CONTRACT FOR: UTILITIES AND ROADWAY
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You are hereby directed to make the following chang~s to the above mentioned contract:
ADDITIONS:
Unit Qty. Unit Price Total Price
Common Excavation C.Y. 284.00 5.25 1,491.00
Subgrade Excavation C.Y. 1,310.00 4.95 6,484.50
6" Aggregate Base, Cl. 5 S.Y, 1,736.00 2.55 4,426.80
,Red Rock for Dnv_y Repair TON 20.00 10.45 209.00
TOTAL CHANGE ORDER 12,611.30
,~gt!I13:~~T_~lAJ1l~..PEB _Tlil~~':!~ti<?~ gB9~~ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _A..c..cE.EI~l'i~s _ _ _ _ _ _ _ _.
ENGINEER:
The time to complete the contractis RL~.~
I X I Unchanged By ~
Date ///,f/~3-P
I I Increased by Days ~te &t~% f;/(o/r't
I I Decreased by Days
The date of completion is Now OWNER:
CITY OF HOPKINS
Original Contract Sum $661,435.50 By
Date
Net Change Order
By Previous Change Orders $173,189.28
CONTRACTOR:
Contract Sum .a2A~ A )~;~
Prior to this Change Order $834,624.78 By
Date ~//<;Z,/9.;? -
I X I Addition
~ Deduction
Made by this change order $12,611.30
New Contract Sum $847,236.08
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ilK 922 Mainstreet
, " ' Hopkins, Mn.
, 55343
(612) 933-0972
fax: (612) 933-1153
January 22, 1993
, " Jim Gessele '
City of Hopkins " , '
'101OSouthFirst Street · , , "" "
Hopkins,: MN55343 '" , ' '". " , " ", ,
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':,RE: -:Knollwood NeIghborhood projectChcmge Order #4 , ,
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'Dear Jim:,
, ,,:This letter,' is 'to explain the, need' for the ite~s in' Change Order #~, dated November' ','
.' " ' 3,1992, and submitted to you'oi:1January20, 1993~~<" ' ,
/ ... . .... The additional common ex~avation'SU?grade.~xcavatiOn~6" aggregateb~e, CL. 5 . ..
,were all Items recommended by, our SOlIs engm~r to correct thesubgrade under the' .
streets. This change order represents what should be the final quantities to correct the
, ' ",roadwaysections,ln the~ollwood Pr()ject.:'., ' , ' :"" ",: ' '. " '
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,.',' :Th~'hem:for' the red':rock f~rdriv~wayrepalr was necessary because' we'had tOinatch .," , '",'
, 'the type of rock that eiisted' on this driveway and ~e'didn~t have acontractitenl for it. '
, This driveway Hon ~he w~stsi,~e of Yal1eY""ayat ~p<lle Lane: ,~,' , ','" "',
Please be assured 'thatw.e, 3.Jongwith G.M:E.,made,everyefforttokeepthese ',' ,
;', ,additional costs as low as pos'sible,'while maintaining high quality and ensuring low
" '" lo~~-term mainten~nce costs. ',' " "",' ", ,
',If you have'anyquestions, please CalL ,,: ',', "
Sincerely'"",'
~f!//~
Charles R: Poppler,'
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