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HomeMy WebLinkAbout20240932 16 Marion Final Subdivision Other ENGINEERING AMERICA CO. 76 WASHINGTON ST. SARATOGA SPRINGS, NY 12866 518 / 587-1340 518 / 580-9783 (FAX) TRANSMITTAL SHEET TO: FROM: Planning Board Tonya Yasenchak COMPANY: DATE: City of Saratoga Springs SEPTEMBER 25, 2024 FAX NUMBER: TOTAL N O. OF PAGES INCLUDING COVER: 6 PHONE NUMBER: SENDER’S REFERENCE NUMBER: RE: YOUR REFERENCE NUMBER: Tanner – (2) Lot Subdivision Water, Sewer & Basic SWPPP  URGENT  FOR REVIEW  PLEASE COMMENT  PLEASE REPLY  AS REQUESTED ENGINEERING REPORT: INTRODUCTION: Engineering America Co. has been retained by the applicants, Allen P. Tanner to provide land planning and site/civil engineering services in connection with the subdivision application for # 16 Marion Ave. at the corner of Marion Ave. & Avenue A in the City of Saratoga Springs, Tax Map # 153.17-1-8. Subdivision approval will be required from the Planning Board which includes all requirements listed on the City of Saratoga’s Preliminary/Final Subdivision Approval Required Submittal Checklist. This report is intended to fulfill items 4 & 6 of the Required Items part of the Preliminary / Final Subdivision approval checklist. DESCRIPTION OF INTENDED SITE DEVELOPMENT & USE: The site, #16 Marion Ave. is located at the North West intersection of Marion Ave (aka NYS Rte. 9) and Avenue A in Saratoga Springs New York. The 14,580 sq.ft. lot currently has two existing structures with (3) total dwelling units. An existing (2) family dwelling is accessed via paved driveway from Avenue A. An existing (1) family dwelling is accessed via gravel driveway from Marion Ave. The lot area is nearly level across the property. The property is mostly grassy with lawn and a few larger mature trees along both street frontages. 2 The proposed subdivision of this parcel would result in dividing the single lot into two lots. The existing (2) family dwelling located on Avenue A would be located on a 6,970 sq.ft lot (designated as Lot 1 on the map). The existing driveway access off of Avenue A would remain unchanged. The existing electrical utility connection overhead from a utility pole on the South side of Avenue A remains unchanged. The new lot (designated as Lot 2 on the map), will be created at the corner of Marion Ave. & Avenue. The existing (1) family dwelling located at the East of the existing property will remain but be modified. The one story portion of this existing structure and exterior stairway will be demolished to allow for the new interior lot line created. The new Lot 2 is proposed to be 7,609 sq.ft. in area. Zoning Variances were granted by the City of Saratoga Zoning Board of Appeals on June 10, 2024 (ZBA #20240196) as follows: - Lot #1: Front Setback – 10’ req./ 3.7’ proposed / 6.3’ variance (63% relief) granted - Lot #2: Rear Setback – 25’ req. / 3.7’ proposed / 21.3’ variance (85.2%) relief granted Compliance with the requirements of Table 3-A of the City of Saratoga Springs Unified Development Ordinance (UDO) for the lots within a UR-2 District is as shown on the subdivision plat pages S2 & S3 WATER REPORT : Currently, there are 2 bedrooms within the existing two-family dwelling which will be on the resulting Lot #1. There are (2) bedrooms within the existing single-family dwelling which will be on the resulting Lot #2. Using a standard demand of 110 gallons per capita day (gpcd) the existing properties can be estimated to have an annual water consumption usage of 160,600 gallons. As the residences are proposed to remain, there is no assumed increase of the water usage. In addition, each structure has it’s own water connection to a water main within Avenue A. The are no proposed modifications to the existing lines or existing connections. SANITARY REPORT : Currently, there are 2 bedrooms within the existing two-family dwelling which will be on the resulting Lot #1. There are (2) bedrooms within the existing single-family dwelling which will be on the resulting Lot #2. Using a standard demand of 110 gallons per capita day (gpcd) the existing properties can be estimated to have an annual sanitary sewer load of approximately 160,600 gallons. 3 Each building has a separate sewer line connection to the sewer main located within Avenue A. As the residences are proposed to remain, there is no assumed increase of the overall sanitary sewer load. There are also no modifications proposed to the existing sewer lines or sewer connections. STORMWATER & BASIC SWPPP / EROSION CONTROL SOIL CONDITIONS: The project site (in location of the proposed current residences is relatively flat. Soils on this site are WnB (Windsor B) according to Saratoga County Soil surveys. the depth to any restrictive feature in this soil type is typically greater than 60”. The soil is classified as very deep, excessively drained, rapid permeability, slow surface runoff and slight erosion hazard. SEDIMENT & EROSION CONTROL: A sediment and erosion control plan has been developed in order to specify minimum controls and measures to reduce sediment runoff during construction. - Construction Entrance: One construction entrance has been specified to accommodate the new driveway off of Avenue A to the proposed existing residence on the new Lot #2. - Topsoil: A potential topsoil storage area for grading backfill will be identified (possibly located at the North East corner of the new lot #2) and will be surrounded by silt fencing. In general, excavation is proposed to be limited to the site modifications as relative to the demolition of the existing one story portion of structure on Lot #2. Excavations following demolition is anticipated to be limited to grading and seeding of a new lawn area. All demolition materials shall be removed from the site & not buried. No soil is proposed to be removed from the site. - Concrete Wash: A Concrete washout location has been proposed at the Eastern portion of the new Lot #2 towards Marion Ave. Concrete washout details and instructions are include on page S-4 of the subdivision development plans. - Sediment Control: Less than 0.06 acres are anticipated to be disturbed during demolition of the existing portion of building and construction of the new driveway on Lot #2. Silt fencing has been specified around the perimeter of the new lot project area to reduce off site erosion migration. Woodland Dwellings with basements Septic Tank Absorption Fields WnB—Windsor loamy sand, undulating Surface layer: Substratum: Soil Properties Permeability: Available water capacity (average for 40-inch profile): Soil reaction: Surface runoff: Erosion hazard: Depth to water table: Depthtobedrock: Flooding hazard: Use and Suitability Cropland Pasture Recreation Woodland Dwellings with basements Septic Tank Absorption Fields WnC—Windsor loamy sand, rolling Surface layer: Subsoil: Substratum: Soil Properties Permeability: Available water capacity (average for 40-inch profile): Soil reaction: Surface runoff: Erosion hazard: Depth to water table: Depthtobedrock: Flooding hazard: Use and Suitability Cropland Pasture Recreation Woodland Dwellings with basements