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HomeMy WebLinkAboutCT 98-23; La Costa Greens; Tentative Map (CT) (27)LAND USE REVIEW DIVISION PROJECT REPORT PROJECT ID: CT 98-23/HDP 98-25/PUD 98-08/SUP 98-10 PROJECT NAME: La Costa Greens PREPARED BY: Kenneth Quon LOCATION: North side of La Costa Avenue, east of El Camino Real BRIEF DESCRIPTION: A 5 unit residential subdivision on 9 lots. ENGINEERING ISSUES AND DISCUSSION TRAFFIC AND CIRCULATION Projected Average Daily Traffic (ADT): 5 units x 10ADT/unit= 50ADT The project contains a single private street with direct access off La Costa Avenue at the eastern edge of the site. To minimize traffic impacts to La Costa Avenue, the project entrance is designed with an alley type apron to facilitate turns for vehicles entering and exiting the project site. Additionally, the private street is designed with a cul-de-sac bulb to allow vehicles to safely turnaround onsite. SEWER Sewer District: Leucadia County Water District Sewer EDU's required: 5 units x 1.00 EDU/unit = 5 EDU's Sewer service to the project will be provided by connections to an existing sewer main located on the north side of the project site. WATER Water District: Carlsbad Municipal Water District GPD required: 5 EDU's x 220 Gallons Per Day/EDU = 1,100 GPD Water service to the project will be provided by connections to an existing 12" water main on La Costa Avenue. GRADING Quantities: Cut: 200 cy Fill: 7,700 cy Import: 7,500 cy Permit required: Yes Offsite approval required No Hillside Grading requirements met: Yes Preliminary geotechnical investigation performed by: Barry and Associates, dated 9/30/98. Grading for this project consists of preparing the onsite soil to receive imported fill by cutting and filling the northerly facing slope to create a level building pad. The soils report for the project states there are no conditions that were encountered during the geotechnical investigation that would preclude this development. DRAINAGE AND EROSION CONTROL Drainage basin: Batiquitos watershed Erosion potential: Low Surface runoff from this project will follow the existing drainage course, which flows to the rear of the site to an existing concrete drainage ditch and into San Marcos Creek. While there are no major storm drain improvements required of this project, the developer will pay fees to cover future drainage improvements under the City's Master Drainage Plan. A drainage analysis was performed to determine the affects of the grading from this project to the water surface elevation for the 100-year flood. The analysis determined that, as a result of the proposed grading, the horizontal limits of inundation will shift approximately 40 feet shift to the north. During a 100-year flood, it is anticipated the limits of inundation will be approximately 1,100 feet wide. Therefore, the 40 foot shift is relatively small and will not result in any appreciable increase in the water surface elevation. LAND TITLE Conflicts with existing easement: No Easements dedication required: No Site boundary coincides with Land Title: Yes Existing right-of-way on La Costa Avenue is satisfactory and no additional dedications are required. IMPROVEMENTS Offsite improvements: No Standards Waiver required: No The one street in this project is a private street and will be constructed with 30' of paved width, curb and gutter, and sidewalk on one side. An easement will be established over the street to allow access for public utilities. Public sidewalk will be constructed along the project frontage on La Costa Avenue.