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Item 4DCITY OF SOUTHLAKE MEMORANDUM (September 1, 2009) To: Shana Yelverton, City Manager From: Robert H. Price, P.E., Director of Public Works Subject: Approve Change Order No. 2 for additional water line and storm drain improvements to the existing construction contract for Dove Road Intersection and Drainage Improvements with Quality Excavation, Ltd. in the amount of $240,943.27 Action Requested: Approve Change Order No. 2 for additional water line and storm drain improvements to the existing construction contract for Dove Road Intersection and Drainage Improvements with Quality Excavation, Ltd. in the amount of $240,943.27. Background Information: In May 2009, Quality Excavation, Ltd began construction of the Dove Road Intersection and Drainage Improvements project. The project includes a storm drain system along East Dove Road between North Carroll Avenue and Dove Creek (just east of Lonesome Dove Road) as well as intersection improvements (Roundabouts) at the intersections of Dove Road at North Carroll Avenue and Dove Road at North White Chapel Blvd. Change Order No. 2 includes the construction of an additional 2,800 LF of 12-inch water line and all related appurtenances along Dove Road between North Carroll Avenue and Lonesome Dove Road in the amount of $210,895.95. During construction of the Dove Road Intersection and Drainage Improvements project, it was determined that the existing water line in Dove Road between North Carroll Avenue and Kimball Avenue needs to be upsized to a 12- inch line to meet the City's Water Master Plan. Including the installation of the 12-inch water line along Dove Road between North Carroll Avenue and Lonesome Dove Road while the roadway and storm drain system are under construction should eliminate the need to disrupt the area for additional infrastructure improvements again in the future. The water line from Lonesome Dove Road to Kimball Avenue is also under design and will be under constructed later this year with another project. Change Order No. 2 also includes the addition of approximately 300 LF of 24-inch storm sewer pipe at the intersection of Dove Road and North Carroll Avenue in the amount of $30,047.32. The additional storm sewer pipe will maintain the existing drainage patterns to the pond system in the area. Financial Considerations: The total amount of the Change Order No. 2 to the existing contract is $240,943.27. Staff recommends that the City Council approve an increase to the project budget of $210,000.00. This amount is included in the FY 2009 and the FY 2010 CIP Budgets. The remainder of the change order will be funded from the construction phase contingency budget. Staff recommends funding the project from the following existing CIP accounts: 205499-598804-D0004 502699-598804-00027 $ 30, 047.32 $ 210, 895.95 $ 240, 943.27 Strategic Link: The construction of the water line improvements along Dove Road and the storm drain improvements at the intersection during construction of the Dove Road Intersection and Drainage Improvements project links to the city's strategy map relative to the focus areas of Infrastructure and Performance Management and Service Delivery. The specific corporate objectives that are met by the construction of this water and storm drain infrastructure include: Providing High Quality Customer Service and Investing to provide and maintain high quality public assets. Citizen Input/ Board Review: None Legal Review: This is the Change Order form that has been previously reviewed by the City Attorney. Alternatives: The City Council may approve Change Order No. 2 or deny it. Supporting Documents: Location Map Change Order No. 2 Project Schedule: 380 calendar days are specified for completion of this project from the date of Notice to Proceed. Based upon the 380 calendar days in the contract, the project completion date is May 8, 2010. Staff Recommendation: Approve Change Order No. 2 for additional water line and storm drain improvements to the existing construction contract for Dove Road Intersection and Drainage Improvements with Quality Excavation, Ltd. in the amount of $240,943.27. Staff Contact: Robert H. Price, P.E., Director of Public Works Gordon J. Mayer, Jr., P.E. Deputy Director of Public Works Cheryl Taylor, P.E. Civil Engineer r O L O 0 N O L C_D CHANGE ORDER No. 2 Dated: September], 2009 OWNER'S Project No. 07-030 Project: Dove Road Intersection and Drainage Improvements OWNER Contract for $2,983,435.26 Contract Date: April22, 2009 To:Quality Excavation, LTD. Contractor You are directed to make the changes noted below in the subject contract for the dollar amount stated below including all labor, equipment, materials, overhead, and profit: Nature of the changes: Unit 1A — Dove Road/N. Carroll Avenue Intersection Improvements Water Line Install an additional 2,8001f of 12" water line along Dove Road $210,895.95 Extension of 12" water line between N. Carroll Ave. and Lonesome Dove Road per the Water Master Plan Unit 1B — E. Dove Rd. Drainage & Paving Improvements Storm Sewer Pipe Install an additional 300 if of 24" RCP at the intersection of Dove Road $30,047.32 and North Carroll Ave. to restore existing drainage patterns to the pond system in the area Total: $240,943.27 These changes result in the following adjustment of contract price and contract time: Contract Price Prior to this Change Order $ 2,996,902.96 Net Increase Resulting from this Change Order $ 240,943.27 Current Contract Price Including this Change Order $ 3,237,846.23 The above changes are approved: City ofSouthlake City By: Title: Manor Date: 2009 Page 1 of 2 Contract Time Prior to this Change 380 calendar days (Days or Date) Net Increase Resulting from this Change Order 0 calendar days (Days) Current Contract Time Including this Change Order 380 calendar days (Days or Date) The above changes are recommended: Southlake City By: Title: City EnLineer Date: 2009 Southlake City By: Title: Project Manager Date: .2009 Southlake Citu By: Title: Director Public Works Date: .2009 Quality Excavation, LTD. Contractor By: Dat 2009 Page 2 of 2 Change Order No. 2 Dove Road Intersection and Drainage Improvements Unit 1A - 12" Water Line along Dove Road Item No. Pay Item Description Quantity Unit Unit Price Total 4 6" Water Line 120 LF $23.00 $2,760.00 5 8" Water Line 80 LF $29.23 $2,338.40 6.1 12" Water Line 2080 LF $58.40 $121,472.00 9 6" Resilent Gate Valve 5 Each $820.00 $4,100.00 10 8" Resilent Gate Valve 1 Each $1,032.46 $1,032.46 11 12" Resilent Gate Valve 7 Each $1,895.07 $13,265.49 14 1" Water Service Connection Long 19 Each $1,065.03 $20,235.57 16 Install Water Meter Box 19 Each $259.77 $4,935.63 17 Connect to Existing Main 3 Each $1,552.64 $4,657.92 18 Fire Hydrant 5 Each $2,911.23 $14,556.15 19 Ductile Iron Fittings 3 TN $1,654.85 $4,964.55 20 Trench Safety 2140 LF $0.94 $2,011.60 62 8 X 8 Tapping Sleeve 1 Each $2,825.64 $2,825.64 23 Remove Fire Hydrants 4 Each $420.31 $1,681.24 63 20" Casing and Certalok PVC Pipe 60 LF $146.64 $8,798.34 22 Remove Gate Valve 6 Each $210.16 1,260.96 SUBTOTAL $210,895.95 Unit 1B - Storm Drain Line'E' Item No. Pay Item Description Quantity Unit Unit Price Total 12.1 24" RCP (across Carroll Avenue) 50 LF $81.24 $4,062.00 12 24" RCP (outside of pavement) 268 LF $61.24 $16,412.32 52 Sloping Conc. Hdwl. (SET) for 24" RCP 1 Each $1,200.00 $1,200.00 53 6'x6' Junction Box w/Weir 1 Each $3,460.00 $3,460.00 54 Mortared Stone Headwall 1 Each $1,340.00 $1,340.00 55 Remove & Replace Wrought Iron Fence 15 LF $55.00 $825.00 56 12" Thick Grouted Rock Rip -Rap 17 SY $69.00 $1,173.00 57 Pavement Repair 35 LF $45.00 1,575.00 SUBTOTAL $30,047.32 GRAND TOTAL $240,943.27