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HomeMy WebLinkAboutPN_Project_Narrative_220726_v1 11235 s.e. 6th street, suite 150 t 425.453.9501 bellevue, wa 98004 f 425.453.8208 navixeng.com e info@navixeng.com Project Narrative The proposed Renton Park Retail project proposes to construct an approximate 7,000 SF multi-tenant building consisting of a mix of retail and restaurant uses on a portion of an approximate 2.67-acre parcel, east of the new Topgolf facility at 745 Park Avenue N. The project is applying for Site Plan Review with SEPA Environmental Review and will subsequently apply for the required construction/building permits. Existing Conditions The 2.67-acre parcel is currently vacant and is comprised of recently constructed parking lot area and pad-ready building sites along the N 8th Street frontage and the Park Avenue N frontage. The parcel is bound by North 8th Street to the north, Park Avenue North to the east, the Topgolf facility to the west, and office with parking structures to the south. There are no significant trees on-site. The site is mapped as a high seismic hazard area and the southern portion of the site in located in the Downtown Wellhead Protection Area Zone 2. This zone prohibits the use of open facilities for stormwater control or otherwise, which are not being proposed as part of the development. On-site soils are comprised of relatively shallow fill overlying alluvial deposits, which consist of very soft to stiff silt with varying sand content and very loose to dense sand with varying silt content. Groundwater was observed as shallow as 4 feet from existing ground surface. The site will not be conducive to stormwater management by infiltration. This project is not located within 100 feet of a stream or wetland, nor is it within 200 feet of Black River, Cedar River, Springbook Creek, May Creek nor Lake Washington. Proposed Conditions The proposed development will consist of the WA Renton Park multi-tenant building at the corner of N 8th Street and Park Avenue N. A new hotel building is proposed to the south end of the parcel along Park Avenue N and will be the subject of a separate land use submittal at a later date. P a g e | 2 Main access to the site will be from a driveway off Park Avenue N. An on-site drive aisle will connect the 2.67-acre parcel to the adjacent Topgolf facility to the west. Please see the enclosed conceptual site plan for reference. It is understood that all necessary right-of-way dedications and associated improvements were completed under the Topgolf development. The new driveway at Park Avenue North and the connection to the existing water main in Park Avenue North will necessitate limited right-of-way work. Stormwater Management Stormwater will be managed in accordance with the 2022 City of Renton SWDM. Per the Flow Control Application Map, the project site falls within the ‘Peak Rate Flow Control Standard – Matching Existing’ area, which states that flow control is not required if the proposed developed condition will not generate more than 0.15-cfs increase in the 100-year peak flow under existing site conditions. The existing site condition for the project site is the previous Boeing development, which had roughly 95% impervious surface coverage as confirmed by the City of Renton. Because the proposed development will decrease the impervious surface coverage to less than 85%, the proposed developed condition will not generate more than a 0.15-cfs increase in the 100-year peak flow. Flow control, therefore, is not required. Enhanced water quality treatment for the recently constructed on-site parking lot area is provided by a Biopod Biofilter unit that was installed as part of the Topgolf development. The discharge to the municipal storm drainage system is located at the intersection of North 8th Street and Park Avenue North. Water and Sanitary Sewer Service Water service will be provided by existing on-site 12” mains installed as part of the Topgolf development. A new connection to the existing 12” main in Park Avenue North will also be required. Sanitary sewer service will be provided by means of two existing on-site 8” stubs installed as part of the Topgolf development. Water and Sanitary Sewer Service Water service will be provided by existing on-site 12” mains installed as part of the Topgolf development. A new connection to the existing 12” main in Park Avenue North will also be required. Sanitary sewer service will be provided by means of two existing on-site 8” stubs installed as part of the Topgolf development.