Road @ Snowslide Creek Avalanche Path MP 2.2
Juneau City and
NWS Forecast Office
Public Forecast Zone
NWS Site Identifier
The Thane Road @ Snowslide Creek South RWIS ESS is located on the
south side of the Snowslide Creek avalanche chute. This is an
avalanche camera only site but will be upgraded in the near future.
There is a row of trees between the site and Gastineau Channel to
the east, which may influence winds and precipitation. A
single-view camera provides an excellent view of Thane Road
northbound and the intersection of Snowslide Creek and Thane Road.
Although there are no luminaires near this site, ambient light from
the rock dump area provides a reasonable amount of light at this
sight. An infrared illuminator provides a nighttime view to help in
the avalanche detection. The Juneau DOT Maintenance Station,
approximately 8 miles to the north, maintains Thane Road. Site Rationale
Thane Road, an urban commuter corridor and home of the Snettisham
power transmission line that provides most of Juneau’s
hydroelectric power needs, is located in in a prime
avalanche zone. Three significant avalanche chutes cross Thane
Road: Snowslide Creek, Middle Pass, and
Cross Bay. Snowslide Creek has a 1.2 year return frequency.
Thane Road is in a precipitation enhanced area, with yearly
precipitation totals in excess of 150 percent of the airport. DOT has deployed an
avalanche camera detection system in collaboration with the Alaska
Electric Light and Power Company (AEL&P) and the City and Borough of Juneau (CBJ), and the
DOT&PF Maintenance and Operations.