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_L CARTER ASSOCIATES , INC. <br /> CONSULTING ENGI.NEERS AND L,kND SURVEYORS <br /> 1708 21St STREET -NIARVLN E. CARTER, P.S.M. <br /> VERO BEACH, FLORIDA 32960-3472 DEAN E LUETHJE, P.E. ir,, a .o <br /> 772-562-4191 <br /> 772-562-7180 (FAX) JOHN H. BLL'M, RE. <br /> FRANK S. CUCCURESE, P.S.M. <br /> DAVID E. LUETHJE, P.S.M. <br /> G. SEAN iMCGUIRE, RE- <br /> GEORGE 16 2007 GEORGE SIMONS, BE <br /> Y , STEVE SNOBERGER, PE. <br /> PATRICK S. WALTHER, PE. <br /> Mr. Christopher J. Kafer, Jr. , P .E., County Engineer <br /> Indian River County Engineering Division <br /> 1840 25`" Street <br /> Vero Beach, FL 32960 <br /> AUL 1 6 <br /> Re 66`" Avenue Roadway Improvements (4" Street to State Road 60) <br /> Amendment No. 6 — Professional Services Agreement INDIAN RIVER COU <br /> IRC Project No. 9810 (CAI Job # 98 -23E) ENGINEERING <br /> EKING DI ION NTY <br /> Dear Chris: <br /> We are pleased to present this proposed amendment for additional services relative to revising the <br /> construction plans to relocate pond 300B, for adding littoral zones and landscape buffers with irrigation <br /> systems and electrical services around the drainage ponds, for adhering to the County' s tree protection <br /> ordinance, and for including an allowance for minor plan changes necessitated by Right-of-Way acquisition <br /> agreements. All provisions of the original Professional Engineering Services Agreement (dated November <br /> 17, 1998), including Amendment Nos. 1 , 2, 3 , 4 and 5 shall remain in full force and effect, unless otherwise <br /> specifically modified herein. A man-hour fee estimate is attached as Exhibit "A" for your use. The following <br /> describes our proposed scope of services and terms of agreement between Carter Associates, Inc . (CAI) and <br /> Indian River County (COUNTY): <br /> Design Modifications: <br /> In general, the roadway plans and drainage design will be modified to relocate pond 300B from the north- <br /> west comer of the intersection between the Main Relief Canal and 66`° Ave to the south-east comer of the <br /> intersection between the Lateral ` A' Canal and 66`" Ave. Also, landscaping and irrigation plans with <br /> associated electrical services will be added at each of the five stormwater management ponds, and littoral <br /> zones will be added to one side of ponds 300A and 300B, as follows: <br /> • Revise 66h Avenue Plan & Profile and Cross Section sheets, drainage structures, drainage piping, <br /> Tabulation of Quantities and Summary of Drainage Structures. <br /> • Revise the lake plan sheets and the typical lake section for ponds 300A and 300B. Add littoral zone <br /> notes and details. <br /> • Revise the stotmwater management calculations and report. <br /> • Utilizing a Landscape Architect as a sub-consultant, provide landscape calculations demonstrating <br /> compliance with the County' s tree protection ordinance. <br /> • Utilizing a Landscape Architect as a sub-consultant, add landscape plans and details to provide <br /> planted buffers with trees, shrubs, and irrigations systems around each of the five drainage ponds <br /> within the project limits. <br /> _ ♦y Seivh,9 Ronda_ <br /> L Lace 191 <br />