Splash! Last 520 bridge pontoons to float tomorrow

Pontoon construction for the new highway 520 floating bridge is now complete.


State and local officials celebrate the completion of construction of all 77 pontoons for the 520 bridge in Aberdeen today. (WSDOT)

The last three football-field-size structures will float out into Grays Harbor early tomorrow morning.

The state department of transportation reports that all 77 pontoons for the new floating bridge will soon be on Lake Washington.

The new floating bridge is expected to be open to traffic in the Spring of 2016.

State leaders are working on funding to complete the west end of highway 520 to connect the new floating bridge to I-5.

A transportation package that advanced out of the state Senate last week includes $1.57 billion to replace the existing seismically challenged structure with a new bridge and more.

The state House is expected to take up the transportation package the week of March 23rd.

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