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IRC Work Order No 1— Exhibit "A" 49th Street / US1 Intersection Improvements Page 2 of 5 signage elements, and sidewalks. The Conceptual Plans shall be submitted to Indian River County Engineering for review and acceptance prior to our proceeding with additional design services. It is our intent to design the 49th Street 3 -Lane section (Old Dixie to U S. Highway # 1) / turn lane improvements centered on the quarter -section line We expect the Old Dixie Highway turn lanes to be accomplished via a west side widening. In order to be eligible for a SJRWMD Permit Exemption, the turn lane improvements will be designed without the need for curbing and storm conveyance piping to eliminate the need for treatment facilities (which might necessitate the County purchasing stormwater treatment tracts) During this task, we will coordinate with Jill Grimaldi of CDM Smith, the County's liaison for the "All Aboard Florida" (AAF) Railroad project. It is understood our Concept Plans will be submitted by CDM to the Florida East Coast Railroad (FECRR) in order that they may plan and design for the expanded roadway improvements to be constructed with this project, as well as their planned calming devices. We will make adjustments to the Conceptual Plans based on feedback received by Indian River County via CDM Smith. Preliminary Construction Plans Preparation of Preliminary Plans for the planned project improvements to include: Title Sheet Construction Notes Summary of Pay Items Roadway Improvements Plan Views Roadway Profile Views (as Necessary) Cross-sections Striping & Signage Plans Construction Details The Preliminary Plans shall be prepared based on the following design criteria Ex Posted Speed Prop Posted Speed Design Speed 49th Street (W of Old Dixie) 30 mph 35 mph 40 mph 49th Street (E. of Old Dixie) n/a 35 mph 40 mph Old Dixie (N of 49th St.) 45 mph 45 mph 50 mph Old Dixie (S. of 49th St.) 35 mph 35 mph 40 mph In order to accommodate the future signalization of the intersection of 49th Street and Old Dixie Highway, the intersection paving shall be designed to be plateaued Final Construction Plans Following your review of the Preliminary Construction Plans, we shall make revisions to address your concerns and convert the plans into Final Construction Plans. The Final Construction Plans shall be utilized for acquisition of permits for the project.