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HomeMy WebLinkAboutUtilities 2009-05-27 Item 3A - Change Order #2-3 - Interurban Avenue South Waterline with Gary Merlino Construction CompanyTO: attachments: Change Order No. 2 Change Order No. 3 City of Tukwila INFORMATIONAL MEMORANDUM Mayor Haggerton UTILITIES COMMITTEE FROM: Public Works Directo DATE: May 14, 2009 SUBJECT: Interurban Ave S Waterline Project Project No. 04 -WT02, Construction Contract No. 08-093 Change Order Nos. 2 3 ISSUE Approve Change Order Nos. 2 3 for the Interurban Ave S Waterline Project. Jim Haggerton, Mayor BACKGROUND Gary Merlino Construction Company, Inc. was awarded the construction contract for the Interurban Ave S Waterline Project for $311,000.00 plus sales tax with a 10% contingency of $33,899.00. Due to the discovery of an unforeseen 8" waterline connection near the north end of the project, Change Order No. 1 was issued for $13,800.00. DISCUSSION After issuance of Change Order No. 1, additional items were required for the unforeseen 8" waterline. Another existing water main to be connected was previously thought to be 8 inches but was actually 12 inches. Both of these circumstances required substantially more effort and materials to complete the connections to the new water main. Project staff and construction management consultants, Anchor QAE, reviewed the stated change order requests and negotiated the proposed fees stated in Change Order Nos. 2 and 3 for $30,714.00 ($16,390.21 $14,323.79). These costs were determined to be reasonable payment for the additional work. The cost increase from these change orders is over the authorized 10% construction contingency of $33,899.00 and require Council approval. RECOMMENDATION The Council is being asked to approve and forward Change Order Nos. 2 and 3 with Gary Merlino Construction Company Inc., for the Interurban Ave S Waterline Project in the amount of $30,714.00 for consideration at the June 8, 2009 Committee of the Whole meeting and subsequent June 15, 2009 Regular Meeting. W \PW Eng PROJECTS \A- WT Protects \04WT02 IU WaterI,ne \Construction Phase \Gary Merino Construction \Change Orders 2 5 4-23-09\ Info memo CO 2 3 5 14 -09 Final doc PROJECT NO.: 04 -WTO2 We the undersigned Contractor, have this proposal is approved, that we will noted above, and perform all services therefore the prices shown above and compensation. ACCEPTED: Date 6A/ By Original Contract (without tax) Previous Change Order (1) This Change Order (without tax) REV. CONTRACT AMOUNT Additional Calendar Days due to this change: 14 to 125 days ORIGINAL: City Clerk (1 of 2) Contractor (2 of 2) file: p: \forms\ CITY OF TUKWILA CONTRACT CHANGE ORDER NO. 2 DATE: 4 -27 -09 BUDGET NO.: 401.02.594.343.63.36 CONTRACT NO.: 08 -093 PROJECT NAME Interurban Ave. S. Waterline Construction TO: Gary Merlino Construction Company, Inc. You are hereby directed to make the herein described changes to the plans and specifications or do the following described work not included in the plans and specifications on this contract: NOTE: This change order is not effective until approved by the "Owner" and a notice to proceed is issued. Conditions: A. The following change, and work affected thereby, are subject to all contract stipulations and covenants; and B. The rights of the "Owner" are not prejudiced; and C. All claims against the "Owner" which are incidental to or as a consequence of this change are waived; and D. The Contractor must submit all Field Overhead and Horne Office Overhead Rates for approval in advance of all change orders. CHANGE: Additional Connections. Due to an the discovery of the unforeseen 8" waterline connection near the north end of the project as addressed in Change Order No.1, additional work items beyond the CO No. 1 costs ($13,800) occurred. The related work included the addition of a 12" gate valve along with restraints needed to isolate the two systems for future maintenance purposes between the 8 inch point of connection and the 12 inch point of connection to the south. Also included was work needed to provide additional site restoration in parking and landscaped areas. When the work was performed, City staff and Anchor (CM consultant) documented and confirmed the required additional work. The Contractor submitted a cost proposal and the actual amount was negotiated to $16,390.21. This cost was determined to be reasonable payment for the additional work. given careful consideration to the change proposed and hereby agree, if provide all equipment, furnish all materials, except as may otherwise be necessary for the work above specified, and will accept as full payment below. This change represents a fair, equitable and complete $311,000.00 13,800.00 16.390.21 $341,190.21 Contractor )/NRJ Title APPROVED BY THE CITY OF TUKWILA By Date Mayor cc: Finance Department (w /encumbrance) Construction Inspector Construction Engineer o m 11° \y 1 GI PROJECT NO.: 04 -WT02 CITY OF TUKWILA CONTRACT CHANGE ORDER NO. 3 DATE: 4 -27 -09 BUDGET NO.: 401.02.594.343.63.36 CONTRACT NO.: 08 -093 PROJECT NAME: Interurban Ave. S. Waterline Construction TO: Gary Merlino Construction Company, Inc. You are hereby directed to make the herein described changes to the plans and specifications or do the following described work not included in the plans and specifications on this contract: NOTE: This change order is not effective until approved by the "Owner" and a notice to proceed is issued. Conditions: A. The following change, and work affected thereby, are subject to all contract stipulations and covenants; and B. The rights of the "Owner" are not prejudiced; and C. All claims against the "Owner" which are incidental to or as a consequence of this change are waived; and D. The Contractor must submit all Field Overhead and Home Office Overhead Rates for approval in advance of all change orders. CHANGE: During the course of construction it was anticipated that an existing water line from the east was 8 inches in diameter as shown on City As -Built Plans and determine through the field review of existing water valves approximately 200 feet east of the point of connection. The contractor installed the new 12" line with an 8" tee fitting to make the re- connection. After the new lines with the 8" tee were installed, the contractor dug down approximately 12 feet to intercept the existing 8" line. When they reached it, it was actually a 12" line. This discovery required the need to remove the previously attached 12' x 8" tee and 8" valve, and replace these with a 12" x 12" tee and a 12" valve. Staff also added a 12" gate valve on the north leg of the new line to provide isolation of this portion of the system when needed in the future. This added valve would isolate a smaller part of the local system thus resulting in lesser degree of service disruption and fire protection concerns to local customers should the need for a temporary shutdown occur. When the work was performed, City staff and Anchor (CM consultant) documented and confirmed the required additional work. The Contractor submitted a cost proposal and the actual amount was negotiated to $14,323.79. This cost was determined to be reasonable payment for the additional work. We the undersigned Contractor, have given careful consideration to the change proposed and hereby agree, if this proposal is approved, that we will provide all equipment, furnish all materials, except as may otherwise be noted above, and perform all services necessary for the work above specified, and will accept as full payment therefore the prices shown above and below. This change represents a fair, equitable and complete compensation. ACCEPTED: Date 7/ U "i Contractor By Additional Calendar Days due to this change: 14 to 139 days Original Contract (without tax) Previous Change Orders This Change Order (without tax) REV. CONTRACT AMOUNT $355,514.00 ORIGINAL: City Clerk (1 of 2) Contractor (2 of 2) We: p: \forms\ Title $311,000.00 30,190.21 14.323.79 By Mayor APPROVED BY THE CITY OF TUKWILA Date cc: Finance Department (w /encumbrance) Construction Inspector Construction Engineer TO: Ebenal General, Inc. REV. CONTRACT AMOUNT ORIGINAL: City Clerk (1 of 2) Contractor (2 of 2) CITY OF TUKWILA CONTRACT CHANGE ORDER NO. 5 DATE: 5 -14 -09 BUDGET NO: 303.00.594.190.62.35 City Hall PROJECT NO: 06 -BG01 CONTRACT NO: 08 -086 PROJECT NAME: Standby Power Upgrades Year One Construction You are hereby directed to make the herein described changes to the plans and specifications or do the following described work not included in the plans and specifications on this contract: NOTE: This change order is not effective until approved by the "Owner" and a notice to proceed is issued, Conditions: A. The following change, and work affected thereby, are subject to all contract stipulations and covenants; B. The rights of the "Owner" are not prejudiced; C. All claims against the "Owner" which are incidental to or as a consequence of this change are waived; and D. The Contractor must submit all Field Overhead and Home Office Overhead Rates for approval in advance of all change orders. CHANGE: The proposed work in Change Order No. 5 initially resulted from the discovery of the proposed generator site location at the west side of was within a stream buffer. This location would create a sizeable amount of mitigation if built in this location. A new site was needed to be determined. New sites were evaluated and design plans were revised with a location in the sloped lawn area in front of City Hall. The costs associated with this location were becoming prohibitive. Finally a site was chosen in the furthest westerly stall of the lower parking lot. This is the nearest feasible location in regard to the location of the existing electrical facilities being connected. We the undersigned Contractor, have given careful consideration to the change proposed and hereby agree, if this proposal is approved, that we will provide all equipment, furnish all materials, except as may otherwise be noted above, and perform all services necessary for the work above specified, and will accept as full payment therefore the prices shown above and below. This change represents a fair, equitable and complete compensation. ACCEPTED: 9 Contractor: Ebenal General, Inc. 1s� By Title I etovc Ae Original Contract (without tax) 480,000.00 APPROVED BY THE CITY OF TUKWILA Previous Change Order 14742.00 Date This Change Order (without tax) 50,565.03 By $545,307.03 Mayor Additional Calendar Days due to this change: 76 for a revised total of 243 days cc: Finance Department (wlencumbrance) Construction Inspector Construction Engineer file: p:lformsl C: \Documents and Settings\Don EGC\Local Settings \Temporary Internet Files \Content Outlook \KLX6JY70 \Ebenal CO 85 CH 4 -09 -09 draftl.doc