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HomeMy WebLinkAboutPN_Project_Narrative_180423_v1 Wang Short Plat: Project Narrative Applicant China Products Inc 2601 S LEMAY AVE. STE 7-417 Fort Collins, CO 8025 970-229-9222 Site Information Parcel Number 619840-0125 Gross Site Area 89,152 S.F. Frontage Roads 116th Ave SE and SE 191 St Existing Use Single Family Residential Proposed Action: 7 lot Short Plat Required Permits: Preliminary Short Plat Zoning Designation R-4 Site Description The site is located at 19016 116th Ave Se and is zoned R-4. The surrounding properties to the north, east, and south are also zoned R-4. Property to the west is zoned R-8. The site has an even and gradual slope from west to east with a fall of approximately 12’. The site currently takes its access from a single family drive off 116th Ave SE. But can also access its site along the intersection of 117th Ave Pl SE and SE 191 St. The western one quarter of the site is occupied by a single -family structure (appx 1,350 sf) and an outbuilding (appx 670 sf). Both of these existing structures will be demolished. This area is predominately mowed grass with landscaping. The rest of the site is a mix of evergreen and deciduous trees. There are no critical areas on the site. Design Proposal The projects proposal is for the approval of a 7-lot short plat. The proposed net density of the project is 4.17 DU/Net Acre. Lots will range in size from 9,000 sf to 9,837 sf. The existing home and shed will be demolished. All lots and proposed storm tract will front the newly proposed ROW along the southern portion of the site. This ROW will connect to both 116th Ave SE and the intersection of 117th Place SE and SE 191st St. Frontage improvements are proposed along 117th Place SE and SE 191st. ROW along 116th Ave SE is also being dedicated so that City streets can be improved to standards. The applicant is requesting a modification to street standards so that the ROW along the southern boundary can utilize a modified limited access road to maintain the existing curb location and install a new sidewalk along the frontage. Please reference the modification request submitted with this application. The total estimated construction cost of improvements required for plat approval is $315,000.00. There are 58 onsite trees that meet the standard for viable retention trees. Out of these 58 trees up to 9 trees will be retained. The project is proposing 96 trees as replacement trees to meet the City’s retention standards. Pleas reference the tree retention sheet and arborist report submitted with this application for a 4-23-2018 Wang Short Plat Page 2 J:\2017\17150\Documents\Docs\Project Description.docx more detailed description of species and sizes of trees to be removed. Total estimated cut is 2,000 CY and fill is 2,000 CY, resulting in a balanced site. Storm water will be collected through a series of catch basins, where it will then be routed to a detention/water quality vault. The vault has been sized to contain a live storage volume of 22,650 CY at a depth of 4.75’ with its water quality volume designed at 6,500 CY at a depth of 4’. Both live storage and water quality have been designed to exceed the required volumes. The treated water will be released into the existing stormwater conveyance system in SE 191st Street. The soils on site were found to be consistent with the Geologic map of the Renton quadrangle, King County, Washington by D.R. Mullineaux (1965). The soils have been mapped as ground moraine deposits (Qgt) consisting primarily of lodgement till. Light to moderate seepage of perched groundwater in all test pits was found. This perched ground water is typical of these soils and often fluctuate with the seasons.