We will increase replacement rate to over 80 miles annually
Once it leaves our in-city tunnels, water travels through 6,700 miles of water mains to reach our homes, over 1,000 of which were installed over a century ago. These aging pipes require constant repair and continual upgrades. We are currently replacing 60 miles of water mains annually.

At our current pace of replacing 1% of our infrastructure every year, a full upgrade will take a century to complete. Over the next decade, we will accelerate the pace of upgrades to over 80 miles annually. In addition, we will spend approximately $575 million to link Stage 2 of Water Tunnel No. 3 with the water main distribution system. Over 10 miles of new trunk water mains will be installed in Manhattan for this purpose.

Progress (as of 4/22/08):
DEP launched a planning process to increase the rate of water main construction and hopes to increase construction, but that will be determined by funding.