Urban utilities. Roads and bridges. Waterways.
All these elements within the Bergen Linden Corridor in New Jersey provided the opportunity to get creative as we worked with Public Service Electric & Gas Company (PSE&G) to deliver a more robust and reliable transmission system to address existing high transmission system fault currents and overloads. Navigating this congested network required complex engineering and design, resulting in two engineering firsts for 345-kV transmission lines in the United States.
Our team provided the specialized design engineering and engineer of record services to build a more robust underground system and designed the underground-to-overhead transition structure.
Taking Reliability Further
One phase of the Bergen-Linden Corridor underground transmission project required a 6,600-foot-long trenchless crossing of Newark Bay, the longest horizontal directional drilling project for continuous 345-kV cross-linked XLPE trenchless cable installed in North America.
We used our detailed knowledge of PSE&G’s systems, underground cable technologies and underground transmission design to provide the routing studies, design and engineering services needed to build the underground system. This included multiple trenchless installations crossing sensitive resources and busy highways, and upgrades to double-circuit overhead lines from 138-kV to 345-kV.
Additionally, we designed a new underground-to-overhead transition structure, the first for a 345-kV line in the United States, saving the client $6 million compared to alternative approaches.
