Key Biscayne Master Plan 043944000.18w_Key_Biscayne_MP(forJooMag) | Page 5

Chapter 1 EXECUT IVE S U MMA R Y In 2006 the Florida Public Service Commission (PSC) voted to amend the Florida Administrative Code to require investor owned utilities (IOU) to file comprehensive storm hardening plans. These plans included storm preparedness initiatives including the hardening of existing transmission structures. Storm hardening is the upgrading of electrical facilities, as well as maintenance practices, so they are better able to withstand extreme weather. Storm hardening of overhead utilities includes:  replacement of wood poles with concrete or steel poles  addition of guy wires for pole support  addition of poles to decrease the span between poles to prepare a Master Plan to map out the underground conversion to its completion. This master plan will provide a guide for the design and implementation of the undergrounding program. It also provides guidance on how to balance and manage priorities, such as cost, project duration, traffic impacts, and other capital improvement needs during this ambitious project. This master plan summarizes the following activities and recommendations:  Data Collection  Design Criteria and Conceptual Design Description  Phasing and Sequencing Plan Florida Power & Light (FPL) has implemented these measures in many municipalities as these initiatives were rolled out through their service area.  Project Delivery Methods Based on the substantial costs and impacts to the electrical grid caused by past hurricanes, FPL has embarked on a program to harden their network of poles supporting feeder infrastructure to increase their resiliency during future storm events. The Village decided that FPL’s storm hardening program would have a negative impact on the Village’s aesthetics. Considering those impacts along with the reliability and safety benefits, the Village decided that a conversion of the overhead utilities to an underground location, also known as undergrounding, should be pursued. The conversion from overhead to underground facilities will improve the safety, reliability, and aesthetics of the electric and communications infrastructure serving the Village.  Traffic Management Plan In the Spring of 2017, Village Council took the first step in the undergrounding process and approved to move forward with a publicly advertised RFQ, which would initiate the process of finding a consultant  Risk Assessment  Public Outreach Program  Opinion of Schedule  Opinion of Probable Cost Data Collection The Village of Key Biscayne is provided with electric service through redundant subaqueous crossings of transmission lines below Biscayne Bay from the mainland to Key Biscayne’s substation. Communication services are routed from the main land over the Rickenbacker Causeway and then underground along Crandon Boulevard to the Village where they are then converted to aerial lines mounted to wood or concrete poles shared 1