Sites
Colorado Boulder District Report
David M. Day
CO, DOT Region 1, Boulder, CO
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Reflectorized Section
December 1996–February 2000
Location: | US 36, 6.1 miles north of Boulder |
Length of Reflectorized Section: | mp 25.99 to 26.6 = 0.6 miles |
Reflectors Installed: | Dec. 1996 |
Reflector Installation Design: | NEW (Directed across hwy) |
Terrain: | Curves |
Estimated Reflector Maintenance Costs: | $440/mile/year |
Deer-Vehicle After Dark Accident History Prior to Installation: |
1993 Mule Deer: 5, Elk 1 1994 Mule Deer: 4, Elk 0 1995 Mule Deer: 4, Elk 0 1996 Mule Deer: 6, Elk 2 |
Deer-Vehicle After Dark Accident History After Installation: |
1997 Mule Deer: 0, Elk 1 1998 Mule Deer: 1, Elk 0 1999 Mule Deer: 4, Elk 3 2000 Mule Deer: 0, Elk 0 |
Yearly Reduction in Mule/Deer Accidents: |
1997: 100% 1998: 79% 1999: 0.2% 2000: 58% |
Control Sections (without reflectors)
Dec 1996–February 2000
Location: | US 36, mps 21.77 to 25.99 and 26.6 to 35 |
Length of Control Section: | 12.62 miles |
Deer-Vehicle After Dark Accident History Prior to Installation: |
1993 Mule Deer: 3–4, Elk 0 1994 Mule Deer: 4, Elk 1 1995 Mule Deer: 3–4, Elk 0 1996 Mule Deer: 3, Elk 0 |
Deer-Vehicle After Dark Accident History After Installation: |
1997 Mule Deer: 3, Elk 1 1998 Mule Deer: 8, Elk 4 1999 Mule Deer: 17, Elk 7 |

I can confirm that deer and elk are present at this test site (the Boulder site) as I drive through the site on my way to and from work, Monday through Friday.
—Mike Day, Highway Maintenance Supervisor I, CO DOT, Region 1, Boulder Colorado