Second Cycle of State Route 520 Pontoons Head to Puget Sound
ABERDEEN, Wash. – The first pontoon from the second cycle in Aberdeen has begun it’s 260 mile nautical journey to Puget Sound. The longitudinal pontoon will wait in Tacoma for outfitting and preparation for assembly on Lake Washington.
The Washington State Department of Transportation reports In the second cycle, crews built three longitudinal pontoons, two supplemental stability pontoons and one cross pontoon. They floated out of the Aberdeen casting basin during a blustery rainstorm overnight April 28-29.