DeKorte Park's Saw Mill Creek Trail has been closed long term, awaiting some major new transmission towers from PSE&G.
The Obersver has an informative article on this ambitious project. Although much of the article deals with the part of the project that's in Kearny, it also describes the company's long-term regional plan for the new towers.
From what we have heard, the new towers would run along the Saw Mill Creek Trail and necessitate major construction work — after which the trail would reopen.
The link is here.