Transcript Colorado - AdkAction.org

CDOT’s Winter Maintenance Strategy
CDOT deicer program
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Colorado
CDOT
History of our program
Our evolution
Situation today
Colorado
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Between 37th and 41st parallels
104,247 square miles
40% high plains - 60% mountains
Average Elevation 6,800’
low point 3,350’
54 peaks > 14,000’
Low humidity
Thin atmosphere
Huge influence from solar radiation
Vast temperature swings
Snow falls range from < 20” to >300”
annually
Colorado
• 23,000 lane miles
• 24 hour coverage
• 14 hour coverage
• 900 plow units
• 3000 CDOT employees
• 1500 plow drivers
• 12 hour shifts
• No contracted snow removal
• Some cities plow minor routes in their
city
CDOT’s Winter Maintenance Strategy
Evolution
Salt / Sand program
PM 10 issues
Sedimentation in mountain streams
Governor
History
Solution Freezing Point Curves
40
30
20
10
%
MgCl2
Temperature F
0
-10
% NaCl
-20
-30
% CaCl2
-40
-50
-60
-70
0
5
10
15
20
Concentration of Brine (weight%)
25
30
35
Situation Today
FY 14 Budget vs FY 14 Spend
Material usage
Technology
LOS
Winter ‘13 – ‘14
FY 14 Budget - $60,402,000
FY 14 Spend - $72,215,000
Material usage
Section
Description
Quantity
UOM
Total Cost
Statewide
Calcium Chloride, 50#
41.00 BAG
$415.54
Statewide
Calcium Chloride, 50#
367.55 BAG
$6,116.63
Statewide
SALT, ROAD 50#
6,519.00 BAG
$25,490.39
Statewide
Abrasive Non-Sanding
7,749.11 TON
$64,066.83
Statewide
Abrasive Non-Mixed for Sanding
2,808.50 TON
$44,667.83
Statewide
SALT-SAND MIX
18,306.94 TON
$550,970.86
Statewide
Liquid Deicer
Statewide
ICE SLICER RS
Statewide
LIQUID DEICER SPECIAL (Liquid+Salt-Sand)
Statewide
Caliber 1000
Statewide
APEX, LIQUID DEICER
Statewide
SAND SLICER
163,606.12 TON
$4,555,557.25
Statewide
ICE SLICER SB
8.00 TON
$861.46
Statewide
RAPID THAW
23.25 TON
$2,495.21
Statewide
CALIBER M-2000
Statewide
ICE BAN 305
Statewide
LIQUID DEICER SPECIAL (PRE-MIX)
Statewide
Salt Brine, Gallon
Statewide
Solar Qwicksalt
Statewide
Ice-Melt, Snow, Ice, Sidewalk, 50#, -25F
Statewide
SOS-TM, LIQUID DEICER, MAG CLORIDE 26%
254,308.10 GLL
$165,553.71
40,345.34 TON
$3,974,021.61
5,144.50 TON
$98,044.40
14,400.00 GLL
$11,784.00
8,822,724.70 GLL
$7,323,932.29
15,726.00 GLL
$15,557.06
2,654,557.00 GLL
$2,075,344.02
3,774.03 TON
600,264.60 GLL
$63,006.97
$326,849.50
1,167.25 TON
$100,058.24
195.00 BAG
$3,892.00
24,156.00 GLL
$29,112.58
$19,437,798.38
Technology
Level of Service
(LOS)
Level of Service (LOS)
Re-cap
Questions / Contact Information
David C. Wieder, P.E.
Staff Maintenance Manager
Colorado Department of Transportation
15285 South Golden Road, Building #45
Golden, CO 80403
Office (303) 512-5502
Mobile (303) 548-5853