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Aubum Office: <br /> 11521 Blocker Drr/e,Suite '0 • Auburn,CA 95603 <br /> ;5301887-1494 • Fax J530)88/-7495 Modesto Office:12091522-6273 <br /> West Sacramento Office: i916i 375-8706 <br /> Geotechnical e Construction Services • Forensics <br /> BCI No. 1399.3 <br /> September 20 , 2010 <br /> Dennis M. Trzcinski <br /> Wilmorite Construction, LLC <br /> 1515-19th Street <br /> Suite 100 <br /> Sacramento, CA 95814 <br /> Subject: Traffic Control Plan For ADL Testing <br /> Buena Vista Rancheria Phase 1 - Offsite Road Improvements <br /> Amador and San Joaquin Counties, California <br /> Dear Mr. Trzcinski, <br /> ADL testing for the Buena Vista Rancheria Phase I Offsite Road Improvement project <br /> will be performed at three intersections with planned roadway improvements. The <br /> intersections are located at SR 88 and Liberty Road; SR 88 and SR 12(both in San <br /> Joaquin County); and SR 88 and Buena Vista Road(Amador County). All sampling will <br /> be performed beyond the paved shoulder. All equipment, including vehicles, will be <br /> located off paved shoulders. Traffic control will conform to Caltrans MUTCD and <br /> consist of appropriate signage as well as cones placed adjacent to the work area at the <br /> outside edge of the paved shoulder. <br /> Sign and cone placement is shown on the attached Figure 611-1. Supporting data is <br /> contained in the attached"Notes For Figure 6H-1"and"Table 611-3". <br /> Please contact this office if you have questions or require additional information. <br /> Sincerely, <br /> BLACKBURN CONSULTING, r <br /> f <br /> David Buck,P.G., C.E.G. Jef atton,P. . <br /> Senior Project Manager Principal Engineer <br /> Attachments: Figure 6H-l;Notes For Figure 6H-1;Table 6H-3 <br />