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HomeMy WebLinkAboutItem 11 - Euless Grapevine Road and Stone Myers Parkway c c. ��� � _��� � 1`�';— �;a MEMO TO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL FROM: BRUNO RUMBELOW, CITY MANAGER �1L MEETING DATE: NOVEMBER 18, 2008 SUBJECT: ENGINEERING SERVICES CONTRACT SUPPLEMENTAL AGREEMENT # 1 — EULESS GRAPEVINE ROAD & STONE MYERS PARKWAY RECOMMENDATION: City Council consider authorizing Supplemental Agreement #1 to the Engineering Services Contract with Turner, Collie & Braden, Incorporated for the design and construction phase services relative to the Euless Grapevine Road/Stone Myers Parkway Reconstruction Project in an amount not to exceed $115,556, authorize staff to execute said supplemental agreement, and take any necessary action. FUNDING SOURCE: Funds are available from 1999 GO Bonds, Account # 17878111010. BACKGROUND: City Staff submitted this project for NCTCOG funding in the 1999 Call for Projects under the TEA-21 Funding Program. The roadway will provide an additional reliever route for traffic destined for DFW Airport when State Highway 360 and State Highway 121/State Highway 114 are heavily congested. Additionally, this roadway will provide added capacity for the corridor when the State Highway 121/State Highway 114 project is under construction. � In NCTCOG's authorization of this project, NCTCOG would provide part of the funding up to a fixed limit with the City providing the balance. Since it involved federal funds, TxDOT was going to construct the project. Under this approach, with TxDOT managing the construction, there was no need for TC&B to provide construction phase services to the City. This cost is normally 15% of the total engineering fee. As the design progressed, TxDOT advised the City that they would be adding a project management charge totaling 7% of the estimated construction costs to the project, estimated in excess of $530,000 for their efforts in managing the project since the project is not on the highway system. Since this added cost would be borne by the City, staff then approached TxDOT with the concept of the City contracting for the November 12,2008 (11:51AM) construction and managing the project. TxDOT agreed. This saved the total project about $455,000 in costs that were not in the original planning. However, since we are now managing the bidding, contracting and construction of the project, we need construction phase services from our consultant. The proposal from TC&B for these services totals $77,428, which represents less than 11.5% of the total fee. Additionally, due to the prolonged delay in finalizing this project resulting from DFW Airport's withholding final approval, our consultant has had to provide us additional support not originally anticipated in the engineering services contract. These services have included coordination of submittals and re-submittals to TxDOT for their final approval through the letting process and significant efforts in processing submittals through the FAA for final approval that was not in their original scope of services ($25,948 and $12,180 respectively). Staff recommends approval. JSL November 12,2008 (11:51AM)