Agenda Date: 12/09/2019
Subject:
Title
PC Resolution 17-2019: Approving a Floodplain use by Special Exception for building within the Slaughterhouse Gulch Floodplain at the Northwest corner of S. Elati Street and W. Powers Avenue
Body
Presented By:
Carolyn Roan, Water Resource Manager
PURPOSE:
The applicant requests approval of a Floodplain Use by Special Exception to build within the Slaughterhouse Gulch floodplain located at the northwest corner of the intersection of S. Elati Street and W. Powers Avenue.
PRESENTATIONS:
Staff Presenter(s): Carolyn Roan, Water Resource Manager
SUMMARY:
The Slaughterhouse Gulch floodplain is a Federal Emergency Management Agency (FEMA) floodplain as depicted on the Flood Insurance Rate Map (FIRM) for Arapahoe County, Colorado. The 1% chance floodplain is located in the streets and on residential properties, without a defined channel. A 60-inch storm sewer pipe conveys a portion of the floodwaters. Homes are located in the floodplain. The proposed activity (requires prior approval of a Floodplain Use by Special Exception and a Site Development Plan) will eliminate the existing buildings on site and reconstruct buildings outside of the floodplain and create second story livable areas above the floodplain by way of supporting columns, with open parking areas below. All proposed work is located outside of the regulatory floodway, but within the floodplain. The National Flood Insurance Program (NFIP) allows for construction to occur in the floodplain outside of a floodway. The NFIP also does not require that such activity obtain a Conditional Letter of Map Revision (CLOMR) or Letter of Map Revision (LOMR) because the proposed elements of the project in the floodwaters are open parking only. Livable areas will be elevated above the floodplain elevation as required by the NFIP.
PRIOR ACTIONS OR DISCUSSIONS:
This project has not been discussed by the Planning Commission previously. The applicant is preparing a Site D...
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