Aids to Naigation Team Kennewick, Wash., hosted their first open house, allowing the public a chance to meet the community assets that help to keep their community safe, March 23, 2013. ANT Kennewick is located on the Columbia river in South Eastern Washington and their primary responsibility is for all fixed structures from Hood River Ore., to Richland Wash., on the Columbia River and from the confluence of the Snake River up to Lewiston, Idaho.