AGENDA CAPTION:
Title
Permit #2018-25568 (Corner of Cotter and Riverway Avenues) Hold a public hearing and consider a request by The Brownstone Group, Inc. for approval of a Qualified Watershed Protection Plan Phase 2 for Lot 1A, Block C of the Blanco Riverwalk Subdivision consisting of 13 acres located at the corner of Cotter and Riverway Avenues. (G. Schwarz)
Body
Meeting date: February 12, 2019
Department: CIP/Engineering
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Background Information:
The subject property is located at the corner of Cotter and Riverway Avenues. The property is platted as Lot 1A, Block C of the Blanco Riverwalk Subdivision. The site is zoned MF-24 and the proposed project consists of constructing an apartment complex. This site is inundated by the 100-year floodplain and includes water quality zone. The project reclaims 100-year floodplain and water quality zone.
This site is a Qualified WPP2 because there is reclamation of floodplain and water quality zone. Qualified Watershed Protection Plans are subject to Planning and Zoning Commission approval and must meet the requirements of the Environmental Chapter of the Land Development Code, meet the requirements of the Flood Damage Prevention Ordinance, and mitigate impacts to water quality zone. Since this project permit began prior to the 2018 code update, prior code requirements apply.
The proposed project meets the requirements of the Environmental Chapter of the Land Development Code.
The proposed project does not meet the requirements of the Flood Damage Prevention Ordinance as it pertains to providing a hydraulic analysis showing no rise in the floodplain or rise contained within a drainage easement. The developer’s engineer is in the process of providing this analysis. It does, however meet the requirements of not decreasing floodplain storage and proposing building lowest floor elevations at least 2-feet higher than the floodplain.
Water quality zone impacts are mitigated by providing vegetated filter strips and grassy swales to remove more that 70% of the increase in TSS produced by the development.
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Recommendation:
Staff has reviewed the request and determined the development meets the requirements of the Code Environmental Regulations, adequately mitigates for adverse impacts to the Water Quality Zone and meets the requirements of the Flood Damage Prevention Ordinance with exception to showing no-rise in the floodplain. Staff recommends approval of 2018-25568 Qualified Watershed Protection Plan Phase 2 with the condition of the project showing no-rise in the floodplain.