Each jurisdiction that was required to plan was required through a review and approval process to plan for accommodating its reasonable share of population growth over a 20-year planning period. One of the mandatory elements in this planning process was the identification of critical areas that required protection or buffering from future land development. These comprehensive plans and development regulations are required to contain a number of mandatory elements and must conform to the policies and guidelines in the GMA. The GMA required the fastest growing cities and counties in Washington State to adopt comprehensive plans and implementing development regulations. In 19, the State of Washington passed a law known as the Growth Management Act (GMA). The presentation will outline a modeling exercise and tools used in conjunction with existing critical area information to validate it. The accuracy of these sources has been questioned. In past analyses, the County has relied on various sources of information to justify its critical areas deduction. To calculate the developable lands, critical areas need to be deducted. The program's overall purpose is to determine the amount of developable land within Pierce County and its cities and towns to meet future population needs. GIS: A Modeling Tool to Answer Critical Area QuestionsĪbstract: This presentation illustrates the use of different GIS tools to enhance critical areas information (e.g., wetlands and steep slopes) for the Pierce County Buildable Lands Program.
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