2018-03-12-minutes-public-works-study-session

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KITTTTAS COUNTY DEPARTMENT OF PUBLIC WORKS PUBLIC WORKS — BOARD OF COUNTY COMNIISSIONERS STUDY SESSION STAFF REPORT STUDY SESSION DATE: March 12, 2018 TOPIC: New FEMA Flood Hazard Maps for Kittitas County ACTION REQUESTED: No action required — informational briefing only LEAD STAFF: Mark R. Cook REC0h9dBhM TION: Coordinate Board member calendars supporting the Flood Control Zone District's public outreach campaign. BRIEFING SUMMARY: • FEMA flood study for Kittitas County began in 2010 • Draft maps were rejected by county staff in 2012 • In 2015, PW reconnected with FEMA and offered to proceed with limited remapping deployment • Staff selected key streams and Yakima river reaches for consideration: 62 miles of new Zone A, 26 miles of new Zone AE, re -delineation of 55 miles, floodplain refinement of 56 miles and 335 miles of digitized mapping Over the past couple of years, FEMA and staff have worked finalizing the remapping effort and are now ready to proceed with the outreach and adoption process BACKGROUND: In 2010, FEMA began a remapping effort of flood hazards in Kittitas County. Draft maps were produced in 2012 and were not accepted by the County. Numerous concerns from the new maps stalled any substantive discussion towards adoption. In 2015, staff began discussions with FEMA regarding a limited map adoption process and solicited FEMA for support with the agency's Cooperative Technical partner (CTP) program. FEMA has supporting partial funding of the County's Whiskey Creek and Mercer Creek flow models and we have moved forward towards implementing a subset of the 2012 revised flood hazard maps. This cooperative effort has delivered FEMA's acceptance of the County's Currier Creek two-dimensional flow model for regulatory remapping. Page 1 of 6 PUBLIC WORKS BOARD OF COUNTY COMMISSIONERS WORK SESSION STAFF REPORT