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<br /> <br /> <br />!1J~G1f.'!!! <br /> <br />14777 LIk. DrIn <br />Forest LaIr., IIN 55D2! <br />PH: (651) 464-0t500 <br />FAX: (651)464.4722 <br /> <br />May 26, 2009 <br /> <br />Bonestroo <br />clo Mr. Mark Statz, City Engineer <br />2335 Highway 36 W <br />St. Paul. MN 55113 <br /> <br />Re: Changed Condition- Swamp Deposits <br /> <br />Dear Mark: <br /> <br />Previously unknown swamp deposits were discoverad between appro)limale street stations 1501-50 <br />to 2001-50 while installing watermain. Construction methods were modified with City approval and <br />future work will be modified as determined by Bonestroo and AET in an effort to construct a stable <br />road capable of suppOrting new utilities and the roadway itself. Some additional costs have <br />oecurred for this wori( and are discussed below as well as prioing for other anticipated work. <br /> <br />Loss of Production/Access Road Contruetion <br /> <br />Based on as bid production, the 6" waterrnain was expected to take 15 hours of pipe crew time to <br />install from 15+50 to 2001-50. Due to the presence of the swamp deposits, the actual time was 32 <br />hours. Production was slowed down due to poor soli conditions (peat), sorting and separating <br />clay from unsuitable peat, unstable trench conditions requiring the use of a trench box, Iilnd <br />constructing a temporary road on the boulevard to allow access to homes. FLC requests <br />compensation for lost pipe orew time at an hourly rata of $755 (for a total of 17 hr x $755/hr = <br />$12.835) and the cost of aggregate base/rock material (135 TN x $8.00rrN = $1080.00) used in <br />access roads to dale. <br /> <br />Prooosed Soil Correction Prlclna <br /> <br />Prices for the soli correction required in the muck area as follows. This will include select granular <br />borrow up to the aggregate base elevation. <br /> <br />Muck E)loavation (EV) <br />Select Granular Borrow (LV) <br />Wood Chips (L VJ <br /> <br />$15.20 per cubic yard <br />$16.60 per oubic yard <br />$28.00 per cubic yard <br /> <br />Sincerely, <br /> <br />FOREST LAKE CONTRACTING, INC. <br /> <br />W 6- LlrIJU <br /> <br />Robert D. Vollhaber <br />Vice President <br /> <br />AN EOUAL OPPORTUNITY EMPLOYER <br />