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1b. Public Works Facility: Approve Change Order CITY OF CHANHASSEN 7700 Market Boulevard PO Box 147 Chanhassen, MN 55317 Administration Phone: 952.227.1100 Fax: 952.227.1110 Building"lnspections 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 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: 952.227.1300 Fax: 952.227.1310 Senior Center Phone: 952.227.1125 Fax: 952.227.1110 Web Site www.ci.chanhassen.mn.us ih ....- MEMORANDUM TO: Todd Gerhardt, City Manager dO, Paul Oehme, Director of Public Works/City Engineer 'V August 24, 2009 ()~ J Public Works Facility, Project 08-03: Approve Change Order FROM: DATE: SUBJ: PROPOSED MOTION "The City Council approves Change Order No.2 in the amount of $63,797.45 for the Public Works Facility. City Council approval requires a simple majority vote of the City Council present. BACKGROUND On February 23,2009, the City Council approved the plans and specifications and authorized the ad for bids. On March 23, 2009, the City Council approved bids for steel and concrete for the facility and reviewed other bids and quotes. On April 13, 2009, the City Council approved bids and quotes for the remaining items of the facility. DISCUSSION Staff is requesting Council consider approving changes to contracts for revisions for the Public Works facility. Included in this request are minor, miscellaneous changes to the project caused by unforeseen site conditions and requested changes by the Building Department based upon interpretation of the building code. Also included in this work are revisions to the vehicle maintenance area for added electrical, plumbing and mechanical changes. Contract changes like these are normal for large scale projects and contingency funds were set aside in the budget. The City's construction manager, RJM Construction, has reviewed the costs and finds them consistent with current market pricing. The project remains on schedule and on budget. Below is a brief description of the changes requested: Precast Wall Panel Deducts Deduct -$1,400.00 Deduct for six (each) 10" and one rectangle opening in panel #783 in precast wall panel. This item was deducted from Minnetonka Plumbing and Dymamic Electric's contract. g:\eng\public\...2008 projects\08-03 chanhassen maintenance (pw) facility\082409 bkgd co2 pw 08-03.doc Chanhassen is a Community for Life - Providing for Today and Planning for Tomorrow Todd Gerhardt Public Works Facility: Approve Change Order August 24, 2009 Page 2 Precast Wall Panel Adds $1,400.00 Add for six (each) 10" openings and one rectangle opening in panel #783 in precast wall panel. This item was added to Fabcon, Inc.'s contract. Flammable Waste Trap to Manhole Structure $7,142.00 The original design of the flammable waste trap called for a light-weight steel structure that would be used for collection of oils or other floatable debris from the vehicle maintenance, vehicle storage and vehicle wash areas. Due to the observed high water table in the area where the structure is located and because the structure is located in the wash bay where heavy vehicles will be driving over the unit, it was determined to replace the steel unit with a precast concrete structure. This unit is stronger and less susceptible to groundwater problems then the steel structure. This item includes the deduction of the steel structure from the contract. Fresh Air Unit and Mechanical Split System $26,262.33 This item is to add additional ventilation in the shop areas based on the building official's interpretation of the building code and review of the plans. This item deletes a rooftop heating/cooling unit and adds a rooftop fresh air unit along with two additional heat pumps for the offices. The majority of the cost is for additional duct work necessary to bring in the fresh air. Revised Rain Water Leaders $16,799.12 This revision is to increase the size of the rain water leaders in the building from 8" to 10" and relocate the drain pipes to connect to the underground piping on the west side of the building. The increase in pipe size was necessary because of the new configuration of the system. Underground piping in the building was the main cost associated with this item. Head Flashing at Windows in Precast Panels $5,080.00 This change is recommended by the panel manufacturer to reduce the chances of water getting behind the window if water got into the concrete wall panel. The current design was originally recommended but staff has found out this design could lead to water problems and damage to panel. The change includes adding additional flashing and caulking around each window in the panels. Add Fire extinguisher Cabinets $686.00 The fire marshal has requested 13 additional fire extinguishers in the building. This item is to add five additional fire extinguisher cabinets in the wall at the office areas. The City will purchase additional extinguishers or move some extinguishers over from the existing public works building. Revisions to Vehicle Maintenance Area $7,828.00 After review of the vehicle maintenance area, staffis requesting additional air, electrical, and mechanical items along with an additional drain to the contract. A 3" waste drain pipe is requested so parts of wash area will drain better and not run over the floor as much. Additional air and electrical outlets are requested so long extension cords will not be needed which can become a hazard. Most of the cost is associated with the extension of the items to the requested location. The services will need to be underground to keep away for overhead equipment. g:\eng\public'-2008 projects\08-03 chanhassen maintenance (pw) facility\082409 bkgd co2 pw 08-03.doc Todd Gerhardt Public Works Facility: Approve Change Order August 24, 2009 Page 3 Total Requested Changes: $63,797.45 The change order amount is proposed to come out of the contingency amount budgeted for the project. The project is still projected to be under budget by $390,256. Attachment: RJM Letter of Recommendations and Budget Summary g:\eng\public'-2008 projects\08-03 chanhassen maintenance (pw) facility\082409 bkgd co2 pw 08-03.doc ~ CONSTRUCTION ::~ ~;~~.~~::~;{;:~~~ ~:; V ;~~~;:::-Ti!::~~j~;~js(;f::1 ~ ~{?'x.z:'.%1 ~ ::~~~. 5~!t'r~~ . ~ ^' ~1 CORPORATE OFFICE HWY.7 CORPORATE CENTER 7003 W. LAKE ST. SUITE 400 ST. LOUIS PARK, MN 55426 PHONE 952-837-8600 FAX 952-832-9600 SATELLITE OFFICES' PLAZA VII 'MINNEAPOLIS, MN NORTHLAND EXECUTIVE OFFICE CENTER BLOOMINGTON, MN NORMANOALELAKE OFFICE PARK BWOMINGTON, MN August 17, 2009 Mr. Todd'Gerhardt City of Chanhassen 7700 Market Boulevard Chanhassen, MN 55317 Re: City ofChanhassen Public Works Facility Recommendation for Project Change Order 2 Chanhassen City Council Meeting Dear Mr. Gerhardt, At the next City Council meeting RJM Construction recommends that the City Council approve Project Change Order 02. The total amount of this Change Order will be for $63,797.45. This Change Order will be deducted from the project contingency which will leave $239,595.20 in project contingency. Change Orders are a nonnal process in construction. A project contingency of $346,872 was budgeted for changes such as the individual Change Requests listed on the attached "Chanhassen Public Works Change Order #2." In addition to the project contingency, the overall Chanhassen Public Works project is under budget by $390,256. Attached is a list of individual Change Requests that comprise this' proposed Change Order. Each of these proposed Change Requests have been reviewed for approval by RJM Construction and Oertel Architects for accuracy in quantities and market pricing for the requested work. Each of these proposed Change Requests have since been revi~wed by projectteam representatives from the City ofChanhassen. If you should have any questions, please feel free to contact me. Thank you for your assistance with this approval. Sincerely, ~C/.j Gerhardt Gliege Project Manager Cc: Jeff Oertel, Oertel Architects I I Chanhassen Public Works Project Change Order #2 CONSTRUCTION Description Flammable Waste Trap to Manhole Structure Proposal Request 5 - Delete RTU 6, Add Fresh Air and Split System Proposal Request 3 - Interior - Revise Rainwater Leaders Head Flashing at Windows in Precast Add Fire Extinguishers per City Reviewer Proposal Request 6 - Added Electrical, Air, and Water in Vehicle Maintenance Proposal Request 4 - Decrease Depth c)f Sand Interceptor and Revise Waste Piping Amount $7,142.00 $26,262.33 $16,799.12 $5,080.00 $686.00 $7,828.00 $0.00 .I Total Change Order 2 $63,797.4'5 ~ CONSTRUCTION ~~~,n:!;:~mi'~~l1 ~ e~j ~l ~~;;:::'] ~. [l ~ CORPORATE OF'F1CE HWY.7 CORPORATE CENTER 7003 W. LAKE ST. SUITE 400 ST. LOUIS PARK, MN 55426 PHONE 952-837'8600 FAX 952.832'9600 SATELLITE OF'F'ICES PLAZA VII MINNEAPOLIS. MN NORTHLAND EXECUTIVE OFFICE CENTER BLOOMINGTON, MN NORMANDALE LAKE OFFICE PARK BLOOMINGTON. MN l_,~~_. Chanhassen Public Works Bid Summary August 17,2009 Base DESCRIPTION Contractor Estimate Public Bids Awarded March 23 2009 Catego 3A . Building Concrete and 4A Masonrv Combined Daveo Concrete $994,200 Catego 38 - Precast Structural Concrete Walls Fabcon $692,605 Catego 3C - Precast Plank Molin $116,337 Catello 5A - Structural SteeI/JoistslDeckin!l/Mlsc. Steel Material Thurnbeck $400,863 Public Bids Awarded April 13 ,2009 Category 5B - Structural SteeIlJoists/Decklng/Misc. Steel Erection Linco $132,500 Cateaorv 6A - Caro./Finish Caro.lMfllworklDoors, Frame Hrdwr/Misc. Spe Frerichs Construction $197,600 Caleaorv 7A - Roofing/SheetmetaVAccessorles Palmer West $489,600 Cate!lorv 8A . Aluminum Entrances/Storefronts Brln Northwestern $135,700 Cateaorv 9A - Gypsum Board Systems RTL Construction $82,469 Category 9B - Painting Steinbrecher Painting $99 300 Cateaorv 11A - VehiCle Maintenance Eeuloment Pumo and Meter $239,541. Cateaorv 11B - Fuel Island Grlaes Construction $137;000 Caleaorv 15A. Plumbing and Piolna Systems Mlnnetonka Plumbinll $696,000 Cateaorv 158 - HVAC and Control Svstems General Sheetmetal $412,500 Category 16A - Electrical Dvnamic Electric $551,490 Quotes Awarded Apri/13, 2009 Earthwork Olson Construcllon $82,640 Site Concrete Caoital Concrete $44,861 Precast Bunker Divider Walls Hanson Silo Company $17.435 Fences & Gates Century Fence $2,000 Modular Retainina Walls Structures Hardscaoes $24,232 Site Utilities 81. Paul UtilIties and Excavatin $88,800 Sectional Overhead Doors API Garaae Door Store $88,700 Overhead Coiling Doors Twin City Garage Door Co. $16,166 Acoustic Ceilinas Twin City Acoustics $7,805 Sianaae Lerov Sians $9,357 Overhead Crane Systems Aero Material Handlina $51,740 Window Treatment Prairie's Edge, Inc. $1,795 Fire Protection Service Fire Protection $82,540 Quotes Awarded April 27, 2009 Tile CD Tile and Stone $30,370 Carpet/ResilIent Multiole Concept Interiors $1,771 Resinous Coatinas QC Companies $52,730 Allowance Awarded Mav 26, 2009 . Salt Structure GrevstonelDayco/Olson $106,456.72 Chanae Order 1 Awarded Julv 17, 2009 Various $43,479,35 Channe Order 2 Recommended for Award August 17, 2009 Various $63,797 Public Bid Awarded Auaust 10, 2009 Asphalt Pavina Bituminous Roadways $285,795 Mise BudaetslAllowances Earthwork - Site Proiect Allowance $75,000 Backfill Landscape Areas Project Allowance $14,205 Landscaoe&lrrlgation Proiect Allowance $20,000 Aoollances Project Allowance $12,000 Commercial Vacuum System Prolect Allowance $12,000 Alternates Awarded Alternate 6 - TPO roofing at all areas - $54,490 Included above Alternate 10 . Provide skYlights - $22,627 Included above ~ CONSTRUCTION 1;~~~~;S;;::~B;~~;;1':i~ f'~tl CORPORATE OfFICE HWY.7 CORPORATE CENTER 7003 W. LAKE ST. SUITE 400 ST. LOUIS PARK, MN 55426 PHONE 952-837-8600 fAX 952-832-9600 SATELLITE OfFICES PLAZA VII MINNEAPOLIS, MN NORTHLAND EXECUTIVE OffiCE CENTER BLOOMINGTON, MN NORMANDALE LAKE OffiCE PARK BLOOMINGTON, MN Chanhassen Public Works Bid Summary August 17,2009 RJM Construction RJM Construction RJM Construction RJM Construction RJM Construction RJM Construction $260,600 $25,000 $20 000 $66,652 $18,500 $35,000 $7,041,133 $239,595 $160,255 $7,440,983 $310,000 $25,000 $54,276 $32,000 $8,000 $60,000 $50,000 $539,276 DesIgn Fees Arch. Mech.fElec. Desi n Fees Subtotaf $429,485 $429,485 Total Project Budget $8,409,744 $8,800,000 $390,256