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An ice road will typically be closed as a result of deterioration of the running or operating surface, before there is any risk of ice cover failure. [4] Surface deterioration can happen when the ice surface becomes too soft, or because of an excessive amount of meltwater on its surface.
The James W. Dalton Highway, usually referred to as the Dalton Highway (and signed as Alaska Route 11), is a 414-mile (666 km) [1] road in Alaska. It begins at the Elliott Highway , north of Fairbanks , and ends at Deadhorse (an unincorporated community within the CDP of Prudhoe Bay ) near the Arctic Ocean and the Prudhoe Bay Oil Fields .
Tuktoyaktuk Winter Road, an extension of the Dempster Highway, was an ice road on frozen Mackenzie River delta channels and the frozen Arctic Ocean between the Northwest Territories communities of Inuvik and Tuktoyaktuk, in Canada. The road closed permanently on 29 April 2017 at the end of the 2016-2017 winter season. [1]
These maps were provided by the United States Geological Survey (USGS) [1] and archived to Wikimedia Commons. They are scanned (by the USGS) images of the original paper maps that were published from 1948 to 1997. The information contained in the table below was transcribed from the paper map images displayed in the Image Array.
Ice Road Truckers (commercially abbreviated IRT) is a reality television series that aired on History Channel from 2007 to 2017. It featured the activities of drivers who operated trucks on ice roads crossing frozen lakes and rivers, in remote territories in Canada and the U.S. state of Alaska .
A winter road is a seasonal road only usable during the winter, i.e. it has to be re-built every year. This road typically runs over land and over frozen lakes, rivers, swamps, and sea ice . [ 1 ] [ 2 ] Segments of a winter road that cross an expanse of floating ice are also referred to as an ice road or an ice bridge .
The road begins at the end of the Dempster Highway in Inuvik, Northwest Territories and continues for 138 km (86 mi) north towards Tuktoyaktuk, a coastal community on the Arctic Ocean. The ITH includes eight bridges, and is a two-lane gravel road for its entirety. [16] On April 29, 2017, the Inuvik to Tuktoyaktuk ice road closed for the last time.
The Exit Glacier, however, is the most accessible of the glaciers being reached by a spur road off of the Seward Highway. The icefield is also one of four remaining icefields in the United States and is the largest contained entirely within the United States. [2] The icefield itself receives over 400 inches of snow each year. [3]