Planning Commission Agenda and Packet 2019 05 09

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Cityo>Planning Commission Louisville Staff Report COLORADO • SINCE 1878 May 9, 2019 ITEM: Floodplain map and penalties update PLANNER: Rob Zuccaro, AICP, Planning and Building Safety Director REQUEST: Approval of Resolution 9, Series 2019, recommending approval of an ordinance amending Chapter 17.56 of the Louisville Municipal Code concerning adoption of an updated Flood Insurance Study and Flood Insurance Rate Maps and addition of a reference to existing penalty provisions for municipal code violations SUMMARY: The proposed ordinance adopts and makes affective beginning August 15, 2019 an updated Flood Insurance Study (FIS) for Boulder County and accompanying Flood Insurance Rate Maps (FIRMs) and adds a reference to existing penalties provisions for non-compliance with the City's adopted ordinances. The City regulates new development within 100-year floodplain to minimize flood losses, protect public safety, and promote appropriate use of floodplain property. The City's adoption and enforcement of up-to-date regulations is also part of the City's participation in the National Flood Insurance Program (NFIP) and the NFIP Community Rating System (CRS). Participation in the CRS allows property owners to obtain discounted flood insurance rates. The adoption of the most recent maps and the reference to our existing penalties provisions are necessary to stay in compliance with NFIP requirements and will help to meet the City's goals for floodplain management. BACKGROUND: The City's current FIS and FIRM maps have an effective date of December 18, 2012. Several interim map amendments have been made since that time, including removal of the floodplain from most of Downtown and Old Town that occurred in 2018 as a result of a major drainage infrastructure improvements. In addition to reflecting any map amendments since 2012, the new maps include updated mapping of the Coal Creek and Rock Creek corridors. The Coal Creek portion of the map reflects updated survey data and floodplain improvements that have reduced the number of structures located in the floodplain. The new mapping also extends the Floodway data for Coal Creek, which allows for more specific regulatory requirements for those areas. Urban Drainage and Flood Control District (UDFCD) coordinated the revisions to the Coal Creek floodplain. Adoption of the updated August 15, 2019 FIS and FIRMs follows a multi -year effort that has included opportunities to comment on the study and mapping by the public and local jurisdictions. All property owners within the Coal Creek floodplain were mailed notices and offered an opportunity to review the updated mapping and provide comments prior to finalization of the maps. The August 15, 2019 FIS and FIRMs can be downloaded from the following link: August 15, 2019 FIS and FIRMs 14