2006 12 19 02. McASPHALT 401 & her tug JOHN SPENCE are approaching lock 8 in Port Colborne, transiting upbound Welland canal. JOHN SPENCE - vessel information:IMO-7218735/Status-In Service/Flag-Canada/Owner-MCKEIL WORK BOATS/Year build-1972/Manager-MCKEIL MARINE/Gross-718/Call sign-CZ2409/Type-Offshore Tug-Supply Ship/Last update-12-05-2000/JOHN SPENCE-12-05-2000 by LRF/ Length – Metres-48.88/ Draft – Metres-4.06/ Horsepower-3280B/ Speed – Knots-14.5/ Is Ocean Going-YES. MCASPHALT 401 - vessel information/Owner-MCASPHALT MARINE TRANSPORTATION LIMITED/Type-TANK BARGE/Location Built-USA/ Year Built-1966/Gross Tonnage-3366/Length – Metres-91.44/Draft – Metres-5.43/D.W.T. (M) Tonnage-6326/Area of service-St. Lawrence River and Great Lakes