Foss Maritime announced the addition of two tractor tugs to its Columbia River fleet, which will give the company more resources to serve a growing customer base at regional port facilities. The first of these 4,400-horsepower tugs will begin river operations as early as November. Captain Dustin Johnson, Regional Operations Manager, Columbia Snake River, added, "Existing grain and port facilities are experiencing new levels of business - and there are several development projects along both the Columbia and the Snake that are in various stages of approval.