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Iowa winter quick Facts - statewide data


Printable winter quick facts for fiscal year 2013 - includes statewide and individual district data.

Roadway responsibilities

Centerline-miles of roadway (ramps not included)
9,479
Lane-miles of roadway (miles of roadway times the number of lanes)
24,215
Number of bridges
4,072

Equipment

Snow removal trucks
901
Motor graders
53
Front-end loaders
133
Heavy-duty, self-propelled snow blowers
12
Medium-duty snow blower attachments for end loaders or tractors
30
Light-duty snow blower attachments for tractors
36

Workforce and facilities

Permanent employees
1,012
Supervisors
52
Garages
109
Salt permanent storage capacity (tons)
218,254

Materials use

Rock salt (tons)
166,017
Liquid salt brine (gallons)
15,893,383
Liquid calcium chloride (gallons)
52,833
Calcium chloride flake (tons)
2,675
Sand (tons)
26,237

Financial

Average annual winter operations budget
$40 million

Roadway weather information systems

Road weather information systems (RWIS)
64
RWIS sites are full-service weather stations along the roadside that provide atmospheric and pavement specific weather information, such as the temperature of the pavement surface.

Climate Data — 5-year average, fiscal years 2009-2013

Average snowfall (inches)
35
Average number of snow events
31
Average winter season precipitation days
53
A precipitation day is any day which .01 inch of liquid precipitation is received.