February 18, 1915: Municipal Journal article. Passaic Valley Sewer. “Methods Employed by Contractors on Section from Bayonne to Robbins Reef Outlet-Sinking One Hundred Foot Shaft in New York Bay-Plans for Outlets. That section (No.2) of the Passaic valley sewer from the contract of the New York and New Jersey Construction Co., described in the issue of January 21, to the terminal chamber at Robbins reef is being built by the O’Rourke Engineering Construction Co., 17 Battery Place, N. Y. This contract comprises 15,000 feet of 12-foot concrete-lined circular tube, running about 80 feet below sea level from Bayonne to the reef. At the present time about 3,300 feet of this tunnel is “rough cut” and is now being trimmed down to the proper cross-section. The shaft at Bayonne, known as Jersey City shaft No. 2, has been sunk and work is proceeding on another shaft which is being built for construction purposes only in New York bay about 4,000 feet from the reef. Work on the terminal chamber itself will probably not begin until late in the summer.
From Jersey City shaft No. 2, the tunnel back to the 100-foot level heading of the New York and New Jersey Construction Co. has been driven back 1,675 feet-as far as is embraced in this contract. In the other direction, that is, toward New York bay, the tube has been driven about 1,370 feet. At this point the rock ran out and mud and gravel were encountered, necessitating the temporary abandonment of the work at this point. At present, work is still at a standstill, and there is a likelihood that it will be necessary to use compressed air for the remainder of the tunnel to the reef. Borings are now being made to further determine the nature of the ground before proceeding with the work.
Reference: “Passaic Valley Sewer.” 1915. Municipal Journal. 38:7(February 18, 1915): 213.