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July 31, 2007 Revised: August 30, 2007 Addendum 1 — August 6, 2008 Mr. Christopher J. Kafer, Jr., P.E. Indian River County Engineering Department 1801 27th Street Vero Beach, Florida 32960 RE: 17th Lane SW Roadway Improvements Addendum #1 Indian River County Public Works Department Indian River County, Florida MM Project #0742 Dear Chris: The following is our proposed scope of services to amend our design for the 17th Lane SW Roadway improvements. Our July 8, 2008 plans illustrate the 17th Lane SW roadway improvements designed to meet Kimley-Horn's design of 27th Avenue improvements (4 -lane roadway). It is understood that the 4 -lane improvements to 27th Avenue will not be constructed in the immediate future; however, the County has designed and will construct a southbound left - turn lane on 27th Avenue in the interim. We therefore propose to amend our 17th Lane SW design to match the County's design of 27th Avenue. It is also understood that the County wishes to expedite the construction of the roadway improvements described above. As such, we are prepared to give the scope of services described below priority over other projects currently in our production schedule. Our August 4, 2008 meeting will serve as a "kick-off' meeting and we will commence work as soon as this proposal is forwarded to the Board of County Commissioners (BCC) for approval. Scope of Services Task 1— Construction Plans & Cost Estimate Update We will revise the "begin project" in our Construction Plans to the station and elevation we discussed during our August 4, 2008 meeting. In general, a low point will be added just east of the intersection, and a stormwater inlet and related piping will be incorporated into the design. We anticipate making revisions to the plan, profile, Station 1+00 cross section, and construction cost estimate. Permitting is not included. Project Schedule and Deliverables Upon receipt of the County's Notice to Proceed the project will be performed to the following schedule: 0 100% Plans Submittal: Within 30 days of Notice to Proceed.