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HomeMy WebLinkAboutCDP 2021-0024; BLAUVELT RESIDENCE; RESPONSE TO CITY OF CARLSBAD COMMENTS REGARDING THE PROPOSED PREVIOUS PAVERS AND DRAINAGE; 2022-11-28EAST COUNTY SOIL CONSULTATION AND ENGINEERING, INC. 10925 HARTLEY ROAD, SUITE "I" SANTEE, CALIFORNIA 92071 TEL. 619-258-7901 Paul Blauvelt November 28, 2022 Project No. 21-l 106E6 1060 Northwood Drive San Carlos, California 94070 Subject: Response to City of Carlsbad Comments Regarding the Proposed Pervious Pavers and Drainage 3259 Lincoln Street Carlsbad, California 92008 References: 1. "Grading Plans for Blauvelt Residence, 3259 Lincoln Street", Project No. CDP2021-0024, drawing No. 538-5A, Prepared by Rancho Coastal Engineering & Surveying, Dated November 21 , 2022. 2. "Geotechnical Investigation for Proposed Two-Story, Single-Family Residence, 3259 Lincoln Street, Carlsbad, California 92008", Project No. 21-1106E6, Prepared by East County Soil Consultation and Engineering, Inc., Dated February 24, 202 1. Dear Mr. Blauvelt: In accordance with your request, we have prepared this letter to address the City of Carlsbad comments regarding the proposed pervious pavers driveway and site drainage at the subject site. We have reviewed the grading plans prepared by Rancho Coastal Engineering and Surveying for the proposed two-story single-family residence and associated improvements at the subject site. The Pervious Paver Detail shown on the referenced grading plans (Reference No. 1) consists of 3 1/8-inch pavers underlain by a 2-inch thick bedding course of No. 8 aggregate, a 4-inch thick choker coarse of No. 57 crushed rock, and a 6-inch thick layer of 3/4 inch crushed rock. This section will be adequate for construction of the proposed driveway. For drainage adjacent to the proposed single-family residence, earth swales should be located at least 2 feet away from the proposed footings and sloping at least 2 percent away. A minimum gradient of 1 percent is recommended for the proposed swale within hardscape areas. esponse to City of Carlsbad Comments Regarding the Proposed Pervious Pavers a d Site Drainage 3 59 Lincoln Street arlsbad, California 92008 Pagel November 28, 2022 Project No. 21-1106E6 is opportunity to be of service is appreciated. If you have any questions, or we can be of er service, please do not hesitate to call or contact us. spectfully Submitted, EAST COUNTY SOIL CONSULTATION AND ENGINEERING, INC.