林道
The portion of the Portage Glacier Highway traveling from the Seward Highway to the Begich, Boggs Visitor Center is designated as part of Forest Highway 35, a Federal Forest Highway (FFH). Forest Highways are funded and administered by the USFS and the Federal Highway Administration; the system was created by the Federal Aid Highway Act of 1921. FFH-35 is one of the 33 Forest Highways that are currently designated in Alaska.