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HomeMy WebLinkAboutCT 04-22; OCEAN ESTATES; PAVEMENT RECOMMENDATIONS; 2008-11-13Cr o4-&t- Geo technical Engineering Construction Inspection Materials Testing Environmental November 13,, 2008 APPROVEL c Office Locations Mr. Geoff Bohne LB Civil Construction, Inc. Project No. 1472-AOl 10650 Treena Street, Suite 212 Log No. 08-1558 San Diego, CA 92123 Subject: Pavement Recommendation Ocean Estates Carlsbad, California Dear Mr. Bohne: In accordance with your request and in conjunction with the City of Carlsbad requirements, MTGJJ Inc. is providing this pavement recommendation. Based upon a subgrade R-value of 60 and a Traffic Index of 5, and in accordance withthe City of Carlsbad Supplemental Standard No. GS-17, the minimum structural pavement section shall be 4" Asphalt Concrete and 4" Aggregate Base. The upper 12 inches of subgrade shall be compacted to a minimum' of 95 percent relative compaction based on ASTM D1557. Base material shall conform to the requirements of Section 200-2 of the Standard Specifications for Public Works Construction (SSPWC) and compacted to a minimum relative compaction of 95 percent per Test Method ASTM D1557. Asphalt concrete shall be dense, hot-laid, hot mix asphalt plant mixes with a history of satisfactory performance in geographical area where project is located and approved by authorities having jurisdiction. Hot-mix asphalt paving materials, workrrianship and other requirements shall be in accordance with the City of Carlsbad (GS-17) and the SSPWC. If you have any questions regarding our report, please do not hesitate to contact this office. Respectfully submitted,. MTGL, Inc. Eduardo C. Dizon, RCE Project Engineer RCE 57217, Exp. 12/31/09 Orange County CorpOrate Branch: 2992 E. La Palma Avenue Suite A Anaheim, CA 92806 Tel: 714.632.2999 Fax: 1714.632.2974 San DiegO. Imperial County 6295 Ferris Square Suite c San Diego, CA 92121 Tel: 858.537.3999' Fax 858.537.3990 Inland Empire 14,467 Meridian Parkway Building 2A Ri'erside, CA 92518 Tel: 951.653.4999 Fa x: 951.653.4666 lridio 4I917 Golf Center Parkway Suite 1 ldio, CA,92201 Tel: 760.342.4677 Fax: 760.342.4525 PC/LA/Inland Empire Dispatch 60.491.2990 San Diego Dispatch 888.844.5060 www.mtglinc.com hFESs c51 No.57217,/Z ' Exp. 12/31fOCC lv' R-VALUE TEST REPORT 100 20 - 0 . 800 700 600 500 400 300 200 100 Exudation Pressure - psi Resistance R-Value and Expansion Pressure - Cal Test 301 Compact. Expansion Horizontal Sample Exud. R No. Pressure Density Moist. Pressure Press. psi Height Pressure R Value pcf % . Value - psi psi @ 160 psi i n. psi Corr. 1 350 121.5 9.7 0.00 50 2.56 223 56 57 2 1 350 126.8 1 7.9 1 0.00 22 1 2.53 1 716 80 80 3 350 125.1 8.8 0.00 40 2.55 414 64 64 Test Results - Material Description R-value at 300 psi exudation pressure = 60 SILTY SAND (SM) Project No.: 1472-A02 Tested by: JS Project:Ocean Estates Checked by: JR Remarks: LAB p983 Date: 11/14/2008 R-VALUE TEST REPORT MTGL, Inc. Figure