Gribblenation

US Route 99 in the vicinity of the cities of Mount Vernon, Burlington and Bellingham was carried by various alignments between 1926-1969.  The original alignment which was inherited from the Pacific Highway followed the highly scenic Chuckanut Drive.  Chuckanut Drive later became US Route 99 Alternate in 1937 following the completion of the Lake Samish bypass.  A second US Route 99 Alternate was designated in 1952 from Bellingham north to the Canadian border via Secondary State Highway 1B.  In the waning years of US Route 99 the highway was subject to further realignments as Interstate 5 was constructed.  This blog serves as a history of the alignments of US Route 99 in Mount Vernon, Burlington and Bellingham.  The many branches of US Route 99 branching from Bellingham can be seen on the 1956 Shell Highway map of Washington .  This blog is part of the larger Gribblenation US Route 99 Page.  For more information pertaining to the other various segm...