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<br />Asphalt and Concrete Plant Operations <br />Location <br />A concrete plant and portable rock crusher will be located <br />southeast of the intersection of the Boxelder Ditch and <br />County Road 9 on a part of the East Rigden site zoned I-Industrial. <br />An asphalt plant will be located north of the ditch/road <br />intersection on the mine site. <br />Traffic <br />Location of the concrete and asphalt plants at the sand and <br />gravel mine eliminates the necessity of hauling product to a <br />second location for processing. The asphalt and concrete plants <br />will generate 106 vehicle trips (to delivery site and return = 2 <br />trips) during a typical day. Total haulage from the site will <br />create 190 trips. (Also, one load of cement and one load of <br />oil will be trucked to the site daili.) If the concrete and <br />asphalt plants were located elsewhere, 96 vehicle trips would <br />be generated by the sand and gravel mine to `aul material to <br />these plants, in addition to the 106 vehicle trips generated <br />by the two plants and the total haulage create3 wou13 be :36 <br />trips. Location of the plants at the mine site reduces traffic <br />volume by about a third. <br />Access from the plant site to County Road 9 meets public safety <br />considerations for stopping sight distances. Sight distance of <br />1500 feet is considered adequate under any conditions.l Sight <br />1Highway Capacity Manual 1965, Highway Research Board Special i <br />Report 87, National Academy of Sciences, p. 301. <br />D- 9 <br />