National Grid proposes refurbishment project on 115-kV line in New York

Niagara Mohawk Power d/b/a National Grid, in an April 22 Part 102 Report filed with the New York State Public Service Commission said that it is proposing to conduct a maintenance project on the Hook Ridge–Elbridge #7 115-kV Transmission Line, which starts at the Hook Road substation in Farmington, N.Y., and ends at the Elbridge substation in Elbridge, N.Y.

The line, which is about 58.4 miles long and primarily uses steel lattice structures with porcelain suspension and deadend insulators, shares double-circuit steel flexible and square-based lattice towers with the Mortimer–Elbridge #2 115-kV transmission line. There is one tap off of the Hook Road–Elbridge Line, the Farmington Substation tap, which begins at Structure 271 and is about 80 feet long, the company added.

The Hook Road–Elbridge Line Conductor Clearance Refurbishment (CCR) Project is a maintenance project that is necessary to provide system reliability to the electric utility end users, as well as provide for public safety in areas where structure replacement or other methods are used to mitigate substandard clearances, the company said.

As part of the project, the company said that it proposes to replace five structures and install three new intermediate structures to adhere to certain conditions. The work proposed as part of the project, which would not encompass the entire line, is located in the Towns of Farmington, Manchester and Phelps in Ontario County; the Town of Seneca Falls and Tyre in Seneca County; and the Town of Montezuma in Cayuga County, the company said.

The line, which was built in the 1960s, is entirely within an existing, maintained right of way (ROW) owned by National Grid, the company said, adding that surrounding land use consists primarily of agricultural land and forested areas, along with commercial and residential properties. The line crosses U.S. Route 20 at Structures 517 and 518, and again at Structures 540 and 541, and crosses multiple local roads.

The company also said that the proposed new structure installations for the project would consist of double circuit, wood, two-pole davit arm suspension structures. Wood poles are proposed instead of steel as there is significant lead time involved with obtaining steel structures, the company said.

Project construction is slated to begin in July, and the target date for project completion is July 2017, the company said.

Discussing rare, threatened and endangered species, the company noted that while the Indiana bat is known to reside in New York and there is a known hibernaculum in Onondaga County, no suitable cave or mines have been found in the project area. Additionally, no tree clearing is required for the project, so no encounter or impact to that species is anticipated.

Of the bog turtle, the company noted that areas within the immediate vicinity of the ROW are not comprised of suitable habitat for the bog turtle, and therefore, no encounter or impact to that species is anticipated.

Among other things, the company discussed agricultural land, saying that while it is anticipated that some short-term impacts associated with the disruption of ongoing farming activities may occur as a consequence of the project, National Grid will attempt to minimize short-term impacts through scheduling and, where possible, coordinating construction activities with ongoing farm operations.

National Grid is a subsidiary of National Grid plc.

About Corina Rivera-Linares 3056 Articles
Corina Rivera-Linares, chief editor for TransmissionHub, has covered the U.S. power industry for the past 15 years. Before joining TransmissionHub, Corina covered renewable energy and environmental issues, as well as transmission, generation, regulation, legislation and ISO/RTO matters at SNL Financial. She has also covered such topics as health, politics, and education for weekly newspapers and national magazines. She can be reached at clinares@endeavorb2b.com.