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<br />Foremen in different counties reported different amounts of time to <br />clear given amounts of snow. Removal strategies also vary: in some <br />counties all operators are sent out initially, but in others, only some <br />are sent out unless snowfall is heavy. Variations in reported times and <br />strategi1es do not appear to be related to the size or topography of the <br />counties studied. <br /> <br />'!he average number of hours required per employee (operators and <br />foremen) to remove given amounts of snow in Lake, Eagle and San Juan <br />counties is plotted in ,Figure 5. (Average number of hours is plotted <br />because in some counties only a portion of the available operators are <br />sent out when snowfall is light.) Lake and Eagle are shown because <br />their reported hours are typical of most counties studied; San Juan is <br />shown because its removal strategy is unique. <br /> <br />All counties studied reported that the effort required to remove <br />snow increases rapidly when snowfall exceeds one or two inches: removing <br />four or six inches of snow requires all operators to work a full day. <br />RemOving nine or ten inches requires little more effort than removing six <br />inches, however, since the operatirr:) speed of the equiFll1ent remains <br />fairly constant. Amounts greater than ten inches were reported to <br />require overtime in all counties studied except San Juan. San Juan uses <br />a two-shift system during larger storms: each employee works an eight <br />hour shift, and the remaining snow is left until the next day. <br /> <br />Average number of hours per employee for mop-up in Lake County, La <br />Plata County, Durango district and Routt County, Steamboat district are <br />plotted in Figure 6. Times for mop-up in these counties, and in the <br />other counties studied increase steadily as snow amounts increase. <br />unlike times for ini tial removal of snow, reported mop-up times do not <br />level off for snow amounts between four and ten inches. Times for mop-up <br />do not appear to be related to the size or topography of the counties <br />studied. <br /> <br />-16- <br />