Niagara Mohawk Power d/b/a National Grid on Jan. 8 filed with the New York State Public Service Commission a Part 102 Report for construction activities associated with the Huntley-Lockport #36/37 115-kV double-circuit transmission line asset condition refurbishment project.
The project involves the replacement of six structures – Structures 153, 155, 161, 189, 204, and 1 – as well as the installation of one new intermediate structure – Structure 222B. The company added that the line would be reconductored with aluminum conductor composite reinforced (ACCR) 447-T16 26/7 “Hawk” for about seven miles, from Structure 153 to Structure 1 on the 36 line and from Structure 153 to Structure 190 on the 37 line.
The proposed structure replacements and new intermediate structure installation for the project would consist of single- or double-circuit steel pole structures on concrete caisson foundation, along with one direct embed double-circuit wood pole equivalent (WPE) steel suspension structure, the company said.
The line is about 21.3 miles long and originates at the Huntley substation in the Town of Tonawanda, N.Y., and terminates at the Lockport substation in the City of Lockport, N.Y. The company also said that the line travels through the towns of Tonawanda and Amherst in Erie County, N.Y., as well as the towns of Pendleton and Lockport and the City of Lockport, Niagara County, N.Y.
The section of the line between the Huntley substation and the Getzville substation, which is about 11.5 miles long, was originally built in 1942, while the remainder of the line from the Getzville substation to the Lockport substation was built in 1929, the company said.
National Grid said that in September 2013, it performed a conductor clearance refurbishment project that included the installation of one new structure – Structure 182A – within the project corridor.
Discussing the project need, the company said that the Huntley-Lockport #37 line was ranked as the fourth worst performing 115-kV line in 2017 due to the number of interruptions since 2011. The project would eliminate splice failures and is necessary to provide system reliability to electric utility end users, National Grid said.
Among other things, the company said that all work associated with the project would be performed within existing right of way owned by National Grid. The project traverses agricultural, light industrial, and residential land use areas. No impacts to streams or waterbodies are anticipated for the project, the company said.
National Grid also said that there would be minor tree trimming to allow for safe access of equipment and workers, but no tree removal is necessary for the project; therefore, the project would have no effect on the Northern Long-Eared Bat.
The company noted that it proposes to begin construction of the project in the spring, and complete the project in the winter.