PSE&G will begin work later this week to upgrade approximately one mile of aging cast iron gas lines with new durable pipes—making them more reliable and less likely to release methane gas.

The gas main replacements, to be completed in the next two months, will take place on Linden Lane, between Guyot and Franklin; on Murray Place, between Nassau and Prospect; on Russel Road, from Winant to the end; and on Tee-Ar Place between Clearview and Franklin. 

“We are pleased to be a part of PSE&G’s program to expedite the replacement of aging natural gas mains,” said Mayor Liz Lempert. “The utility’s investment in Princeton’s infrastructure will ensure the continued safety and reliability of gas service now and for many years to come.”

According to PSE&G, the new pipes will also enable the installation of excess flow valves on service lines, dramatically reducing gas flow if a pipe is damaged. The increased pressure of the new gas mains will also provide better support for high-efficiency appliances like furnaces and water heaters.

Joe Forline, vice president of gas operations for PSE&G, explained, “These upgrades are part of PSE&G’s three-year program to replace up to 510 miles of aging gas infrastructure throughout New Jersey. We are working closely with the municipal officials and the Department of Public Works to coordinate construction schedules and are committed to keeping customers in Princeton informed about where and when the work will take place.”

First steps in the preparations will include soil tests and digging of test holes to verify the location of existing gas mains. Installation of new gas mains and upgrading associated service lines that carry the gas to homes will follow.

As workers dig trenches, primarily in road surfaces, and lay new pipes block by block, there will be short-term road closures and detours, according to PSE&G. In most cases the utility will be able to install the new pipes without digging in lawns. Lawn areas, shrubs and other vegetation affected by the work will be restored. Grass areas will be raked and seeded.

After repairing roads with temporary pavement until the ground settles, which takes about 45-90 days, depending on weather and soil conditions, PSE&G will then restore the roads with permanent paving in accordance with town ordinance and paving requirements.