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RFQ No. 20-10-01 Professional Engineering and Architectural Services for Pedestrian Bridge with Park Elements Across A1A at 174th St. CCNA City of Sunny Isles Beach 12| UTILITIES Utility Coordination will be important to the success of this project. Providing minimal impact to utilities will be of the utmost importance to minimize disruption of service to the many businesses in the immediate and surrounding areas to include major hotels and residences. With multiple UAO’s, utility coordination will begin early in the design process using approved practice/procedures. Collins Avenue (A1A) and 174th Street are considered major corridors for aerial and subsurface utilities. One Call Design and Dig Ticket has revealed that at least eight major utility agency owners (UAO’s) are within the project limits. These include Florida Power and Light (FPL), TECO Peoples’ Gas, the City of North Miami Beach and Miami-Dade County for potable water and sanitary sewer, AT&T and Atlantic Broadband for telephone, Internet and cable and the City of Sunny Isles Beach for stormwater and street lighting. FPL has aerial distribution facilities along the west side of Collins Avenue at the intersection which will undoubtedly be impacted by the planned pedestrian overpass. Cable TV and telephone services will also be impacted since they are also present on the same FPL poles. FPL just recently converted a similar aerial distribution system to underground on the East side of Collins Avenue at this same intersection. The same consideration should be given to the West side, to accommodate the pedestrian overpass. With the remaining utilities being underground, ASCE Quality Level “B”, designating the utilities prior to completing the survey will aid during the preliminary design phase. This upfront approach to performing the utility designation will help reduce potential utility impacts and possible relocation. This early, vital information is also helpful in keeping the project on schedule and within budget, while also avoiding costly delays during construction. Once survey is obtained and preliminary design is complete, ASCE Quality Level “A” locating (VVH test holes) will be performed at potential conflicts with design. This method provides for using non-destructive vacuum excavation to expose and visually verify the precise location, size, material composition and orientation of existing underground utilities. Our team has years of experience working with utility stakeholders, and we will continue to work closely with them to minimize impact to their infrastructure, thereby providing for a design that is beneficial to all parties. Utility Coordination support will continue over into construction as needed to ensure that any utility relocation deemed necessary is completed in a timely manner. This support will also help to mitigate any unforeseen issues/concerns that may come up during construction. DRAINAGE The pedestrian bridge rendering calls for a “park like” setting containing large landscape planters between the pedestrian walkway and the edge of the bridge. This vision was developed with the intent of complementing Samson Park, which is the main beachfront park within Sunny Isles Beach. The pedestrian bridge will need to be designed to meet all design standards in effect from the City of Sunny Isles Beach, FDOT and Miami-Dade County. This includes facilitating drainage by providing for a positive deck cross slope graded to drain to collection points strategically located on the bridge. To avoid directly draining to Collins Avenue below, bridge scuppers will not be allowed per FDOT standards. Runoff will need be collected to and contained within a closed drainage system within the steel box girder cross- sections. Bridge deck drainage infrastructure could include a combination of trench drains, yard drains and vegetated rain gardens placed adjacent to the pedestrian walkway. Overflow structures would route excess stormwater runoff via small shallow storm pipes to down spouts located at pedestrian landings at both ends of the bridge. Two existing roadside curb inlets are available on both sides of Collins Avenue for stormwater discharge. Sustainable design practices can be implemented in the design of the drainage collection system. Paved pedestrian pathways can be graded to drain to adjacent planting beds, or rain gardens, which would help to reduce the amount of stormwater runoff from entering into the existing storm sewer system on Collins Avenue. In lieu of installing an irrigation system, consideration could be given to utilizing local drought-tolerant low maintenance plant species in planted garden spaces. The project is located within Waterbody ID number (WBID) 3226H1 ICWW - Southeast Coast Biscayne Bay. This waterbody exceeds maximum criteria for nutrients and is listed on the Florida Department of Environmental DPROJECT UNDERSTANDING & APPROACH