The Vancouver City Council approved a contract Monday that will launch construction this winter on the Grant Street pier, the centerpiece of a future $1.3 billion residential and commercial development that will rise along the Columbia River over the next several years.
Of the six bids the city received, Quigg Brothers of Aberdeen submitted the lowest bid of $715,500 for the job of removing wood and steel piles from the river and building a cofferdam. The city will pay for the project out of its Parks Capital Projects funds.
A cofferdam is a temporary, watertight enclosure that allows water to be pumped out of the area so piles can be driven into the riverbed. By law, construction below the ordinary high water mark in the Columbia River can occur only between Oct. 1 and Dec. 31. The cofferdam will allow pier construction to proceed after the time window closes for in-water work.
A 7-acre city park containing the $4.5 million Grant Street pier will sit at the heart of the 21-block waterfront development by Gramor Development of Tualatin, Ore. The $17 million park is expected to open to the public sometime in 2017.