The power supply for Virginia’s densely populated Middle Peninsula Area, on the Chesapeake Bay, is currently adequate but somewhat fragile; a single 115 kV line extends southward from the Harmony Village Substation of Dominion Virginia Power (DVP). The non-redundant power supply was at risk for long interruptions and local demand threatened to outstrip supply.
At its recent Integrity Educational Seminar, Mears Group Inc., personnel focused on the topic of establishing the maximum allowable operating pressure (MAOP) of a gas pipeline and the general concept of operating margin of safety.
In the U.S. and many other countries, shared land use by pipelines and other utilities is common. This trend means the number of overhead high-voltage transmission lines parallel to and sharing a common corridor with underground pipelines has increased, and they all need grounding to prevent interference by alternating current (A/C).
In April, the Mears Group, Inc. completed a design-build project in Jacksonville, FL to allow a regional energy producer to expand its natural gas pipeline to serve new facilities.
To complete the project, Mears drilled a 7,400-foot pilot hole at a depth of 130 feet beneath the St. John’s River bottom to install a 16-inch steel pipe.
David A. Haynes of Beaverton, MI, passed away June 27, 2009 in Oak Hill, WV while whitewater rafting with family members.