Cornell University - Cornell Lake Source Cooling Cleaning
The project involved anchoring a sectional barge in 250' of water on an inland lake, and recovering an intake screen weighing over 4 tons to the surface for cleaning and inspection. With the screen off, cleaning pigs (3) were sent through nearly 2 miles of 62" diameter pipe to clean accumulated quagga and zebra mussels.
There was miscellaneous work at the inshore Heat Exchange Facility building removing and installing large blind flanges to allow the pigging operation to take place. These flanges weighed up to 5700 pounds, with work taking place in a wet well 35' deep.