2011-046 AMS - Coulter Jewell Thames, P.A. - Amendment for Engineering and Construction Administration Services -Twin Creeks Greenway $25,875

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Coulter Jewell Thames, PA 1 1 1 WEST M A I N S T R E E T UURHAh1, NOR1 H CAROLINA 2I7~ t p919.682 0368 f919.6B8.5646 LETTER OF AMENDMENT TO AN EXISTING CONTRACT made this 7th day of February, 2011 To The OWNER Orange County -Asset Management and Purchasing Services PO Box 8181 Hillsborough, NC 27278 Attn: Jeff Thompson By The SITE CONSULTANT Coulter Jewell Thames, P.A. 111 West Main Street Durham, North Carolina 27701 For Landscape Architecture and Civil Engineering Services For additional services related to the construction administration and inspection of the greenway trail at the Twin Creeks District Parklocated in Carrboro, North Carolina. Description The construction phase services for the Twin Creeks greenway trail are outlined in a Letter of Amendment to an Existing Contract provided by Coulter Jewell Thames PA dated January 7, 2010, and executed by Orange County on March 11, 2010. In the Letter of Amendment, a budget for construction phase services was developed based on a construction duration of 28 weeks. The total construction phase services budget was $106,400.00. Under the terms of the letter, Coulter Jewell Thames, PA has invoiced monthly against this budget for the hours spent on the project. A Notice to Proceed for the project was issued on February 17, 2010, with construction beginning on February 18, 2010. A 28 week construction duration beginning on February 18th would have concluded on September 2, 2010. Coulter Jewell Thames has invoiced Orange County a total of $86,675.00 for services provided though October 31, 2010. By invoicing Orange County for the actual hours of construction phase services provided., we have been able to work beyond the originally estimated construction period and remain within construction phase services budget. However, based on the current schedule for completion of the project, we do expect to exceed our construction phase services budget prior to completion of the project. We estimate that we will be required to provide the equivalent of 12 weeks of construction phase services for the project for the period from November 1, 2010, through completion of the project. Each week of construction phase services would include 40 hours for the resident project representative and 10 hours for project manager. Due to the extended construction period for the project, Coulter Jewell Thames, PA is requesting that our construction phase service. budget be increased by $25,875.00 to a total of $132,275.00. Calculations of the estimated services remaining to be provided and the amount remaining in the budget are provided on the next page.