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The engineering work was completed in 2007 and 2008 and the pipeline was constructed in the fall of 2007 and the summer of 2008. The pipeline was placed in service in November 2008. Empire Pipeline consisted of the construction of a 78-mile-long, 24-inch diameter pipeline from Empire’s existing pipeline in Victor, New York to a connection with Millennium Pipeline Company near Corning, New York. The pipeline has a design capacity of 250,000 Dth per day in the winter and 221,100 Dth per day in the summer, and a maximum allowable operating pressure of 1,290 psig. The pipeline auxiliary facilities included mainline valves, drips, pig launchers and receivers, cathodic protection equipment, station piping, electrical and communication equipment, and buildings. EN Engineering’s detailed engineering, design, and project management consisted of 78 miles of 24-inch pipeline, a regulator station and pig launcher at the beginning of the line, a meter station and pig receiver at the end of the line for delivery of 250,000 Dth per day to Millennium. A future meter and regulator station for 100,000 Dth per day was also designed. The detailed design and drafting consisted of the design and creation of 30 alignment sheets; two HDD design drawings; road and railroad crossing drawings for 12 state highways, 4 railroads, 60 township roads, 18 county roads, and the New York State Thruway (I-90) crossing. ENE also obtained the permits for road and railroad crossings and for entrance pad (driveways) for pipeline access and access roads. The Technology group of ENE designed the cathodic protection (CP) system and supervised the installation and the start up of the CP system. ENE procured all pipe, valves, fittings, and all other materials for the project. The pipeline bid package and contract was prepared and ENE participated in the bid showings and the bid evaluations and contractor selections. ENE also prepared the bid packages and obtained proposals for Mill Inspection, Radiographic Services, Craft Inspectors, and ILI/Caliper Pig Inspection Services. The crossing of the New York State Thruway – I-90 – was a very interesting design and permitting project. The original design was for a cased crossing of the road and an approach to the road crossing, which was routed, surveyed, and filed with FERC to be installed in the Tollway ROW, near the ROW fence and parallel to the highway. The crossing was designed and drafted in that manner. Longitudinal occupancy of a federal highway is only allowed if special approval is obtained from the federal Department of Transportation. It was determined that this process would take a long time for review and approval and if the reasons for longitudinal occupancy were not sufficiently convincing, the request would be denied. We immediately reviewed the situation and proposed an alternate route that would remove the pipeline from running parallel to the Thruway inside the ROW line. This routing was considered by the client and after slight modifications, accepted. The new route was surveyed and a new crossing designed. The drawing and permit were submitted and approved. However, because all the ROW could not be secured by negotiation, the reroute had to be filed with FERC as an amendment to the project certificate. This certificate amendment was also eventually received and the crossing was constructed near the end of the project, yet still in time to meet the in service date. The HDD crossings of the Keuka and Canandaigua Outlets were also very interesting design and construction projects. The bottom of the Keuka Outlet was 125 feet below the surface of the land on either side of the crossing. An HDD crossing was designed to be installed at a depth of 30 feet below the bottom of the outlet. The crossing was approximately 2,600 feet long from entry point to exit point. The crossing was directionally drilled by the contractor and the pipeline was installed. The Canandaigua Outlet HDD was a much shorter and shallower crossing at approximately 1,450 feet in length and 17 feet deep. The crossing was designed and installed 41 feet below the bottom of the outlet with rock at the depth of the drill path. Even with the rock drilling required, the HDD contractor completed the drilling and installation of the crossing in a much shorter time period than the Keuka Outlet crossing. The engineering design, drafting and procurement for the whole project were completed on time. The construction, done over two seasons, was completed to meet the planned in-service date. The client was very satisfied with the engineering effort and has been equally satisfied with the operation of the pipeline system.   © EN Engineering