Snow plow event #7

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