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4 Change Order Marsh Glen Trail4- C]TYOF CHA SE 7700 Market Boulevard ~ Box 147 Chanhassen. MN 55317 Admlnlntratlon Phone: 952.227.1100 Fax: 952.227.1110 Building Inspections Phone: 952.227.1180 Fax: 952.227.1190 Engineering Phone: 952.227.1160 Fax:. 952.227.1170 Finance Phone: 952.227.1140 Fax:. 952.227.1110 Park & Recreation Phone: 952.227.1120 Fax: 952.227.1110 Recreatio~ Center 2310 Coultw Boulevard Phone: 952.227.1400 Fax: 952.227.1404 Planning & Natural Resources Phone: 952.227.1120 Fax: 952.227.1110 Public Works 1591 Park Road Phone: 952.227.1300 Fax:. 952.227.1310 Senior Center Phone: 952.227.1125 Fax: 952.227.1110 Web Site v,,,w,,.ci.chanhass~n.mn.us TO: FROM: Todd Gerhardt, City Manager Todd Hoffman, Director of Parks and Recreation DATE: April 22, 2003 SUB J: Update to Approval of Change Order No. 2, Marsh Glen Trail At the direction of the City Council, staff hosted two additional meetings with the parties involved in the Marsh Glen Trail project. The first meeting held on April 1, 2003 did not end with any final agreeanents being reache~ A second meeting held on April 7, 2003, with you and City Attorney Knutson present, resulted in a settlement agreement between all parties being reached. This agreement has the net effect of reducing .Change Order No. 2 by $10,000, bringing the total change order payment to $21,623.36. RECOMMENDATION It is recommended that the City Council approve the settlement agreement reducing Marsh Glen Change Order No. 2 by $10,000 resulting in a new change order amount of $21,623.36. The City of Chanha#en * A growing community with clean lakes, quality schools, a chaining downtown, U'lriving businesses, winding trails, and beautiful parks. A gmat place to live, wo~ and play. C1TYOF CHAN EN I:'0 BOx147 Chanhass~, MN 5531 Admlnlsb'atlon Ph0n~ 952.227.1100 Fax: 952.227.1110 Balldlng Inspecfloes Pl'm~ 952.227.1180 Fax: 652.227.1190 Engineering Phone: 952227.1160 Fax: 952.227.1170 Finance Phone: 952.227.1140 Fax: 952.227.1110 Park & Recreation Phone: 952.227.1120 Fax:. 952.221.1110 Recreation Center 2310 Coulter Boulevard Phone: 952.227.1400 Fax: 952.227.1404 Planning & Natural Resources Phone: 952.227.1130 Fax: 952.227.1110 Public Works 1591 Park Road Phone: 95Z227.1300 Fax: 952.227.1310 Senior Center Phone: 952.227.1125 Fax: 952.227.1110 Web Site www. ci.c~hass~n.mn.us MRMOI~UM FROM: Todd Gerhardt, City Manager Todd Hoffman, Director of Parks and Recreation DATE: March 19, 2003 SUBJ: Approval of Change Order No. 2, Marsh Glen Trail Attached please find a memorandum from Paul Paige of Hoisington Koegler Group detailing the need for a substantial change order on the Marsh Glen Trail. This trail connector is situated adjacent to Rice Marsh Lake, affording furore trail users some inspiring views. Unfortunately, trailway ali~ments situated near marshes are also prone to exhibiting poor soils. In this case, soil borings were conducted that identified some unstable soil would be encountered in the construction of this trail. The trail design and bid package accounted for the amount of poor soils estimated to be encountered. The amount of poor soil actually present turned out to be substantially greater than initially anticipate& In order to "get to the bottom" of the bad soil deposits under the trail alignment, an additional 609 cubic yards of soU was excavated at a cost of $15 per cubic yard. Backfilling this sub-cut trench necessitated the import, placement, and compaction of select granular fill at a cost of $28.54 per cubic yard. Other added costs include $4,757.50 in equipment and labor to haul and grade these additional soils, and $350 for a culvert extension. On the bright side of things, staff was success~ in negotiations to dispose of the majority of this excess material on private property adjacent to the project site. In doing so, the City avoided significant trucking costs to haul the material off site. The original contact sum for this project was $99,655.00. Change order No. 1 for an additional culvert cost $3,927.00. This Second change order for soft correction cost $31,623.36, bringing the total contract to date to $135,205.36. RECOMMENDATION It is recommended that the City Council approve change order No. 2 for the Marsh Glen Trail Project in the amount $31,623.36, bring~g the total contract award to $135,205.36. ATTACHMENT Change Order No. 2, Marsh Glen Trail The City of Chanhassen * A growing community wilh clean lakes, quality schools, a charming dowotowo, ~rivin9 busl~, ,winding trails, and beautiful parks. A gmat place to live, work, and play. Hoisington Koegler Group Inc. To: From: Date: Todd Hoffman, Park and Recreation Director, City of ~ Minnesota Paul Paige Change Order W2 far Marsh Glen Trail and Pedestrian Bridge March 18, 2003 The Marsh Glen Trail and Pedestrian Bridge is being built directly adjacent to a wetland complex. Due to the proximity to the wetland, the soils are wet and unstable and special subgrade preparation is needed. Prior to construction, American Engineering Testing, Inc., a geotechnical consulting firm, took soil borings in the trail area and recommended subgrade preparation to ensure that the trail would be stable and resist frost heave. American Engineering Testing recommended that all organic wpsofl be removed and that the resulting subcut should be filled with select granular borrow wrapped in geotexfile fabric. The ~ depth of subcut in unstable areas was to be 1'-6" to allow for at least 1' of select granular borrow under 6" of Class 5 Aggregate Base. The original contract sum is based on thia cross section. During construction, to ensure that the Contractor had completely removed the organic topsoil layer, American Engineering Testing was asked to inspect the trail subcut. Upon inspection, American Engineering Testing found that along much of the trail, the organic topsoil layer extended several feet deeper than originally anticipated. A representative from American En~neefing Testing was on site supervising the necessary removal of organic topsoil from the subbase from December 18, 2002 to December 28, 2002. During this time, 609 C.Y. of ~ddifional organic soil needed to be removed and then filled with select granular borrow in order to ensure a stable subbase for the trail. The ContracWr then had to relocate the removed organic material to an on site location. All of this work was outside of the original contract sum. In addition to the above work, Sunram Construction has been asked to extend a 12" CMP culvert that has been placed under the trail in a low spot to allow the flow of water under the trail. The 10' culvert extension will allow for a safer, more gradual slope away from the finished trail edge at this location- I have reviewed excavation information from ~can Engineering Testing, and select granular borrow receipts from Sunram Construction and have determined that 609 C.Y. of additional subcut was removed to properly prepare the trail subgrade. In addition, I have reviewed the costs of additional subcut, placed select granular borrow, moving the additional organic topsoil on the site, and the cost of the culvert extension and feel that the prices are fair. I recommend that the City Council approve the change order sum of $31,623.36. Due to proper preparation of the subbase, the City can be assured that the Marsh Glen Trail will remain in excellent condition with ~ additional maintenance for many years to come. 123 North Third Street, Suite 100, Minneapolis, MN 55401-1659 Ph (612) 3384)800 Fx (612) 33845838 www_hk~'.com Direct (612) 252-7133 Rmail rusty@hk~_com · Change Order OWNER LANDECAPE ARCHITECT CONTRACTOR Clty of Chanhassen Holsington Koegler Group Inc. Sunram Constm~ Inc. OTHER THIS DOCUMENT HAS IMPORTANT LEC-.-.-~L CONSEQUENCES; CONSULTATION WITH AN A'I-rORNEY IS ENCOURAGED WITH RESPECT TO ITS COMPLETION OR MODIFICATION. PROJECT: Marsh Glen Trail and Pedestrian Bridge chanhassea Park and Recreation Department Chanhassen, Minnesota TO CONTRACTOR: Sunram ConstrucUon Inc. 20010 75th Avenue North Corcomn, bin 58340 CHANGE ORDER NUMBER: 2 DATE: 2/21/2003 PROJECT NO: 0Ck81 CONTRACT DATE: 10/7/2002 VENDOR NO: N/A (see attached sheets) Not wild until signed by the Owner, Landa=ape Architect and Contractor. The original (Contract Sum) (Guaranteed MaxJmum Price) was Net change by previously authorized Change Orders The (Contract Sum) (Guaranteed Maximum Pdce) prior to this Change Order was The (Contract Sum) (Guaranteed Maximum Price) will be (increased) (~ (unchanged) by the Change Order in the amount of The new (Contract Sum) (Guaranteed Maximum Price) including this Change Order will be The ~ Time will be (increBsecl) (decreased) (gnchBrmedl by ( ) days The date of Completion as of the date of this Change Order ttmrefom is Note: This summa~ does not reflect changes in the Conb'ac~ Sum, Contract Time or Guaranteed Maximum Pdce which have been authorized by ConstrudJon Change DlredJve. $ 3,92/.00 $ 103,582.00 $ 31,62336 $ 135,205.3~ l~un~ LANDSCAPE ARCHITECT Hoisington Koegler Group inc. CONTRACTOR Sunram Construction, Inc. Address 20010 75th Avenue Norlh Corcoran, MN 55340 123 North 3rd Street, Suite 100 Minneapolis, Minnesota 55401 By Date OWNER Chanhasse~ Park and Recreation Department Chanhassea, MN 55317 By Change Order - 2002 Edition - HKGI Copyright 2002 M.'~Chanha~senWIG_TrafADocu~ Con' Summary of Change Order No 2. You are directed to make the following changes in the Contract Documents: Description: a) b) Additional Trail Subcut 609 CY @ $15 CY Result in Contract Price: add Additional Select Granular Fill, Placed 609CY@ 28.54 CY Result in Contract Price: $9,135.00 Dirt moved on site 1/8/03 & 1/9/03 Result in Contract Price: add $17,380.86 add $4,757.50 Extend 12" CMP 10 LF to Swamp Side Result in Contract Pdce: add $350.00 Net Contract change for Change Order No.2. Add $31,623.36 Change Order - 2002 Edition - HKGi Copyright 2002 Pro: ect Area 5 ~,SK~ H~U.S wA¥'w 7. MISSION HILLS WAY E Project Location