PORTLAND, Ore. (AP) — A jumbo shipment is headed up the Columbia River this weekend.

A Dutch heavy-lift vessel named Blue Marlin will be carrying a load of Chinese-built parts for a dry dock expected to be assembled this fall in Portland.

Vigor Industrial says the Blue Marlin is 738 feet long, and the three dock pieces will be more than 960 feet long when assembled.

The Oregonian reports (http://bit.ly/1ACfrjk) that the dry dock is for repairing big vessels such as cruise ships.

The shipment is expected to cross the Columbia bar Sunday morning and arrive at Swan Island Monday. Vigor Industrial says people along the river can get current information on its progress from the company Twitter feed.

The company is asking boaters to keep their distance to ensure safety.

___

Information from: The Oregonian, http://www.oregonlive.com