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Last modified
7/28/2009 2:40:47 PM
Creation date
4/24/2008 2:55:24 PM
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Template:
Weather Modification
Title
A Simulation of the Costs of Removing Snow from County Highways in Colorado
Date
3/1/1983
Weather Modification - Doc Type
Report
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<br />GENERAL INFORMl\TION <br /> <br />Most of the counties studied are divided into road maintenance <br />districts (not all of which, for lack of snowfall records, are included <br />in this study). Routt has three distr icts and La Plata has four; Lake <br />and San Juan, on the other hand, each have only one district. Although <br />most equipment is housed and maintained in "county shops," in very rural <br />counties operators sometimes keep machines at their homes. The "typical" <br />district in the counties studied has one foreman, seven operators and one <br />or two mechanics who work in the shop maintaining and repairing <br />equipment. <br /> <br />All counties studied use "maintainers" (road graders) to remove <br />snow. These machines usually are equipped with external wings to <br />increase swath. Some counties also use dump trucks equipped with blades <br />and wings and drop-in' sanders. The age of the equipment varies <br />considerably, and some counties still use machines built in the 1950s. <br />New equipment is very expensive--a top-of-the-line maintainer costs well <br />over $100,000. <br /> <br />The primary re~nsibility of removal crews in the counties studied <br />is to maintain roads used by school buses. and the postal service. When <br />snow falls overnight, crews often start removing it as early as 4:00 <br />a.m. Work continues until the roads have been cleared or until most <br />residents have returned home in the evening. In counties frequented by <br />tourists, crews sometimes clear roads as late as 11:00 p.m. <br /> <br />When snow begins to fall in the counties studied, the foremen, <br />equipped with four-wheel drive pickup trucks, survey road conditions. <br />Some counties sand busy intersections and steep hills as soon as snow <br />accumulates, but snow removal usually does not begin until one or two <br />inches have fallen. Once removal begins, foremen check for trouble spots <br />or equipment breakdown until clearing has been completed. Snow slides <br />complicate snow removal in very mountainous counties such as San Juan. <br />Safety dictates that an extra person watch the clearing of slides. <br /> <br />-15- <br />
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