CROW WING COUNTY Dec. 26, 2016 Snow Event #7 2016-14 Event Costs Salt Sand Brine Equipment/Fuel Personnel Reg. Personnel OT Total Cost Mile Season Total: Priority 2 % Target 2A Met: % Target 2B Met: Priority 3 % Target 3A Met: Legend GAIL LAKE 134 ) " M M IDEAL 112 M 11 168 ) " 107 371 £ ¤ 29 M Gull Lake 36 4 115 ) " 371 £ ¤ 126 " ) ) " 11 116 ) " M M 30 WOLFORD M 19 IRONDALE CITY OF CROSBY IRONDALE 111 ) " M M DEERWOOD 12 133 ) " 210 £ ¤ North Long Lake M M 371 £ ¤ M5 6 £ ¤ 100% CITY OF BAXTER 25 3 CITY OF BRAINERD M 48 144 ) " 117 M 45 10 M 44 GARRISON 22 M M 9 131 ) " Mille Lacs Lake 26 M 104 M 8 132 ) " M 23 138 ) " M 2 121 ) " ST MATHIAS PLATTE LAKE DAGGETT BROOK 113 ) " ROOSEVELT 130 ) " 122 ) " 10 M MAPLE GROVE LONG LAKE South Long Lake ) " 25 £ ¤ 2 M 148 M M BAY LAKE ) " 371 £ ¤ CITY OF FORT RIPLEY 8 24 123 FORT RIPLEY ) " Bay Lake 18 £ ¤ M M 371 £ ¤ ) " 371 £ ¤ CROW WING 21 124 NOKAY LAKE ) " ) " 27 ) " M M 170 M 159 M 14 M8 Lake ) Clearwater " 102 142 ) " OAK LAWN 32 6 £ ¤ 28 CITY OF RIVERTON M 210 £ ¤ 31 3 49 32 M FIRST ASSESSMENT 125 M RABBIT LAKE 30 M M 127 ) " 109 ) " ) " 141 ) " 128 ) " 105 ) " PERRY LAKE M CENTER M 127 Round Lake Target Not Achieved Report Date: 1/2/2017 137 115 Route Priority Target Achieved LAKE EDWARD ) " 77 Route Target 3 118 Hubert Lake 3 (ADT<500) M 11 M ) " 18 MnDOT Highway 114 SECOND ASSESSMENT Pelican Lake PELICAN M 36 6 £ ¤ M 4 ROSS LAKE M ) " 36 MISSION ) " 210 £ ¤ 36 MM 3 FAIRFIELD M M 17 M" ) 2 (500>ADT<5000) CITY OF CROSSLAKE CITY OF BREEZY POINT 11 M 100% 15% ) " 3 39 ) " 106 M 16 M 1 66 M M 16 M M Whitefish Lake JENKINS 15 LITTLE PINE CITY OF EMILY CITY OF MANHATTAN BEACH Big Trout Lake CITY OF NISSWA 13 1 (ADT>5000) CITY OF FIFTY LAKES TIMOTHY 1 100% 0% 6 £ ¤ 136 ) " CITY OF JENKINS $78,302 $13,035 $10,395 $58,768 $19,468 $10,980 $190,948 $341 $580,205 Priority By Route Priority 1 % Target 1A Met: % Target 1B Met: M " Map by Crow Wing County Highway Department. For Questions or Information Contact County Hwy. Dept. at 218-824-1110. For Information on State Highways Contact MnDOT at 218-828-5700. Reported Event Conditions Date: 12/25-12/26/16 Event No: #7 2016-14 Begin Time: 12/25/16 2AM End Time: 12/26/16 4PM Weather: Rain/Snow Precipitation: 2" rn 2" sw Temperature: 36\9 Wind: 15-45 mph 56 M 45 139 ) " 149 ) " Platte Lake M 8 M 2 2016/2017 Summary For Snow Event #7 2016-14 Europa Date 12/25-12/26 Salt Cyds 879.5 Salt $ Sand Cyds $78,302 458 Sand $ $13,035 Brine $ Mat. Total 15751 $10,395 $101,732 Brine gal Equip $ Reg. Personnel $58,768 $19,468.00 Total Total $190,948 57.6 hrs = $3,315 per/hr $341 per/CL/Mile OT $ $10,980 $190,948 806.5 man hours Forecast Significant rain and snow late 12/25 into 12/26. Winter storm watch issed 12/22/16. Ice storm warning issued 12/24/16. Light snow changing over to rain 12/25-12/26 then changing back to snow. Strong winds of 30-45 mph causing blowing and drifting. Ice accumulations of 1/4"+ expected. Pre Plan Go out with 50/50 salt/sand mix the afternoon of 12/25 and return early the moring of 12/26. If conditions are favorable apply 600 lbs of salt on centerline 12/26. Start plowing at 6 A.M. on 12/26. Comments Dispatched called at 6 A.M. to report icy road conditions. Emergency callout went out to snowplow operators who responded immediately. Off and on flurries contiued daily into the morning of 12/29. This made it difficult to gain on the ice because as the snow fell it covered up the salt and created more ice in areas. Temps dropped quickly up north. 1" of ice froze to the roads at 4 A.M. 12/26. Conditions Black ice/ice coving all county roads on at 6 A.M. 12/25. Winds starting to gust. Rain changed over to snow in the north half of the county late 12/25. Contunued snowing until 4 P.M. 12/26 Ice on all roads again but much more up north. Some roads had 1.5" of ice compacted on them. The wind and cooler temps created a challenging situation for ice removal. Snowplows applied copious amounts of salt to soften and melt the ice. Winds and blowing snow slowed this and caused refreezing on roads that started to melt. We used mag. chloride, salt, sand, serrated edges, Sharq edges on the blades and brine and struggled to cut the ice. We had flurries everyday hindering the salt's melting power. Lots of refreezing at dusk. Road RDTemp Hwy 6 28 Hwy 6 26 CR 45 28 Hwy 6 26 Hwy 6 13 Hwy 25 15 Date/Time Air Temp 12\24\16 10:45 A.M 12\25\16 9 A.M. 12\25\16 11:45 A.M. 12\26\16 10:45 A.M. 12\2716 7 A.M. 12\27\16 7 A.M. Date 12/24/2016 12/25/2016 12/26/2016 12/27/2016 12/28/2016 12/29/2016 High 30 33 36 17 32 27 Low 23 24 11 9 17 10 Summery The roads should have cleaned up much better and faster than they did with the pavement temps and all of the resources we used. The thick ice, wind and humidity levels slowed the melting process. Continued flurries and blowing snow made melting difficult. Blades could not cut throught the ice very well and with the shorter days and low sun we had a lot of refreezing. Sand did not stay on the roads. It blew off the polished ice and did not help rough it up. Decisions Made The 50/50 salt sand mix worked well on 12/25 except there was not enough moisture to help it melt across the road. It melted but salt crystals were still visible on centerline and ice on the shoulders. Salt on 12/26 was used because the pavement temps were favorable. The ice was very thick and did not melt well. We tried sand for traction but it did not stay on the road. We continued to scrape and cut ice all week. Sharq edges on the blades took some ice off the roads after multiple passes with the blades. Lessons Learned The ice was too thick for the ice to melt throughly even with favorable pavement temps. Strong winds created issues with blowing snow catching and refreezing to roads. There was a malfunction with one of the trucks and it put down about 2600 lbs of salt per lane mile. The ice melted but refroze. Even using an exorbitant amount of salt did not work. Blades started cutting ice at 5 A.M. on 12/27 but did not have a lot of success until mid morning. Goals Met/Not Met Plowing Priority 1 Met Priority 2 Met Priority 3 Met Bare wheel paths Priority 1 not met Priority 2 not met
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