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KOA CORPORATION <br />�' FiF�.NhIINI= � cNC�IIJEEkI!VG <br />May 14, 2008 <br />Mr. Jay Trevino <br />City of Santa Ana — Public Works Agency <br />20 Civic Center Plaza M-21 <br />Santa Ana, California 92702 <br />1 120 Wet La Veta Avenue. Suite 660 <br />Orange•, CA 92868 <br />719.573.0317 f- 719.573.9534 <br />www.koaCorporatioil. coin <br />Subject: EXTRA WORK PROPOSAL for the Addendum for the Draft EIR Metro East Mixed Use <br />Overlay Zone in the City of Santa Ana <br />Dear Mr. Trevino: <br />KOA Corporation (KOA) is pleased to provide engineering services to you for the work in the City of Santa <br />Ana. The City has requested additional services that were not in the original Scope of Services. We are <br />most interested in performing the necessary services and submitting this proposal accordingly. This letter <br />presents our cost estimate for the project and requests your written authorization. <br />KOA will prepare the following: <br />■ Analysis of additional arterial intersections and street segments per the City of Tustin request, specifically <br />within the Old Town Tustin area: A Street, C Street, and Prospect Street south of I-, Street. <br />Intersections to be analyzed include the intersections of Ist Street and Main Street with A Street, C <br />Street, and Prospect Street. <br />■ Analysis of Irvine Boulevard/4th Street between Tustin Avenue and Yorba Street using Synchro and <br />SimTraffic traffic simulations has been requested to verify cause of traffic congestion and delay and to <br />verify benefits of proposed mitigation measures. <br />■ Analysis of 1761 Street between Tustin Avenue and Yorba Street using Synchro and SimTraffic traffic <br />simulations has been requested to verify cause of traffic congestion and delay and to verify benefits of <br />proposed mitigation measures. <br />■ The report will be modified to include graphics showing traffic conditions before improvements and <br />traffic conditions after improvements on Irvine Boulevard and 17th Street. <br />■ Additional meetings have been requested to demonstrate SimTraffic simulations to City of Santa Ana and <br />City of Tustin staff (3 meetings). <br />The additional work will require a fee increase of $8,500. This will increase the total budget from $16,500 to <br />$25,000. <br />LGSArJGELES OAKLAND ONTARIO COUNTY' SAhi GIE'.GG <br />