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Page 2 of 3 <br />Other agencies that have bare pavement policies and adequate staff for additional work shifts did 34 <br />not achieve bare pavement for th is storm for several days. 35 <br />Current Policy Typical Level of Service 36 <br /> Snowfall of less than 2”. Ge neral snow plowing may not be necessary and normal ice 37 <br />control procedures may be adequate to pr oduce safe winter driving conditions. The 38 <br />Street Maintenance Supervisor may deem plow ing necessary if a seri es of less than 2” 39 <br />snowfalls has caused a buildup of snow on City streets or the moistu re content is such 40 <br />that too much salt is necessary to achiev e safe driving conditions without plowing. 41 <br /> Snowfall of 2” to 6”. Typical ly, snow removal begins as soon as practical after snowfall 42 <br />has ended. Once continuous accumulation reach es 2”, the City’s parking ban on City 43 <br />streets takes effect (see City Ordinance 602.09). Depending on the timing of the snowfall 44 <br />event, every effort is made to provide motori sts with safe winter driving conditions prior 45 <br />to critical time periods. The most critical time periods are weekday morning and evening 46 <br />rush hours. The City will attempt to remove ice and snow from the City maintained 47 <br />collector and priority streets prior to rush hour periods. No rmally, collector and priority 48 <br />streets are plowed first. Once the collector and priority areas are plowed and opened, the 49 <br />remaining streets in the reside ntial, commercial, a nd industrial areas will be plowed and 50 <br />ice control applied. 51 <br /> Snowfall greater than 6”. Each plow rout e has a system of co llector, priority, and 52 <br />secondary streets that link neighborhoods, major arterials, and facili ties such as schools, 53 <br />health care facilities, etc. Depending upon the duration of any snowfall event, it may be 54 <br />necessary to continually clear priority streets in orde r to assure public safety. Once 55 <br />snowfall has ceased, priority streets within each route will be cl eared before snow 56 <br />removal begins on secondary streets. Ice control measures will follow once streets are 57 <br />plowed full width. 58 <br />As new technologies are available, we consider what studies have shown to be beneficial to 59 <br />improve conditions. We have experimented with many different ice control products in the last 60 <br />20 years as follows: 61 <br /> Various salt/sand mixtures 62 <br /> Straight salt 63 <br /> Salt brine 64 <br /> Urea 65 <br /> Calcium products 66 <br /> Sugar Beet Juice by/product 67 <br /> Molasses 68 <br /> Pre-treated salt with various products 69 <br /> Pre-wet salt 70 <br />We began using salt brine anti-icing app lication during the 2011 – 2012 snow season. 71 <br />Approximately 60 pounds of salt/brine per lane mile were used, limited to parking lots, stop 72 <br />signs, hills, and curves. 73 <br />The Public Works Department has 17 street and utility operators to utilize for snow and ice 74 <br />operations. However, at times all may not be ava ilable for various reasons. It is important to 75 <br />note that during snow events, we have regular ut ility maintenance and repair issues that may 76 <br />need to be addressed. Emergency needs such as water break repairs that are common in the 77 <br />winter may require the attention of several uti lity workers. We also can anticipate one staff 78