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Munn&Perkins Quarry Excavation Permit 2010). The roadway is included in the Stanislaus County CMP Roadway Network(Stanislaus Council of Governments, 2010). Local Roadways East River Road is a two-lane,east-west roadway that is designated as a Major County road (San Joaquin County, 1992). The roadway provides access to other major roadways, including SR 99, McHenry Avenue, Santa Fe Avenue, and to the Project site access roadway. McHenry Avenue is a two-lane,north-south roadway that is designated as a Major road in the Stanislaus County General Plan(Stanislaus County,2006)and is designated as a Major County road in the San Joaquin County General Plan(San Joaquin County, 1992). The roadway serves as SR 108 south of Patterson Road, providing vehicular access to SR 219 within Stanislaus County, and becomes Escalon-Bellota Road at its junction at SR 120 in Escalon.The roadway provides access to several communities in Stanislaus and San Joaquin counties. Patterson Road is a two-lane, east-west roadway that is designated as a Major road east of McHenry Road and as a Collector Road west of McHenry Road(Stanislaus County, 2006). The roadway serves as SR 108 between First St. to the east and its junction at McHenry Avenue to the west; it becomes Ladd Road west of McHenry Avenue.The roadway generally serves as a main corridor throughout the Riverbank area. .i Santa Fe Road is a two-lane roadway that generally runs in a northwest-southeast alignment and extends(as Main Street)from McHenry Avenue/SR 120 to the north(in the City of Escalon) and SR 108 (as County Highway J7)to the south(in the City of Riverbank). Santa Fe Road is a designated truck route within the City of Escalon(City of Escalon,2010). The Project site is located at the existing Quarry facility,whose access road on the south side of East River Road is approximately 1.25 mile east of McHenry Avenue. Currently,there are no traffic control devices(e.g.,traffic signal, stop sign, or yield sign)at the�access road intersection at East River Road,though the rules of the road dictate that vehicles exiting the quarry site must, at a minimum, yield to cross traffic on East River Road. Traffic Conditions Existing traffic conditions along roadways near the Quarry site were analyzed based on current traffic count data and applying the 2000 Highway Capacity Manual(HCM)methodology to identify roadway level of service (LOS). In order to identify existing traffic volumes on roadways that connect the Quarry site to state highways(which are used by trucks hauling aggregate material to construction sites),automatic machine(tube)counts were conducted during a seven-day period at six locations(on McHenry Avenue,East River Road, Santa Fe Road and the site access roadway),I Consistent with standard t Tube counts were conducted on East River Road west and east of the Quarry access road,and on the Quarry access road for the seven days from September 26 to October 2,2008.Tube counts were conducted on McHenry Avenue north and south of East River Road,and on Santa Fe Road for the seven days from February 28 to March 6,2011. Munn&Perkins Quarry Excavation Permit 3.2-2 ESA 1211086 Draft EIR April 2011 a I