The Project is comprised of 6 segments, each with a unique transmission corridor and construction plan. Below are descriptions of each segment. For segment locations and visualizations, please see the Project Map above.
Segment 1 (Mile 0 to 8): Located in the Towns of Evans and Hamburg, Segment 1 generally involves the removal of existing double-circuit 115kV lattice structures and associated lines (wires), along with the removal of an existing 34.5kV sub-transmission line in the corridor. These structures will be replaced with a triple-circuit monopole structure that will house two 115kV transmission lines and one 34.5kV transmission line. Due to existing physical constraints, there are two exceptions to this general design:
- The first structure outside of the North Angola Substation will be reused.
- For one mile between South Creek Road and Lakeview Road, a new double-circuit 115kV monopole structure will replace the existing lattice structure. The 34.5kV sub-transmission structure will remain in place.
Segment 2 (Mile 8 to 11.6): Located in the Town of Hamburg, the existing double-circuit 115kV lattice structures and associated lines will be removed and replaced with a double-circuit 115kV monopole structure, which will be built approximately 38 feet to the east of the existing lattice structure. For approximately 3.4 miles between Pleasant Ave and Camp Road, the new 115kV facilities will swap locations with the existing 34.5kV sub-transmission line, which will be rebuilt where the existing lattice structure now stands.
Segment 3 (Mile 11.6 to 15.4): Segment 3 is located in the Town of Hamburg and generally involves the removal of existing double-circuit 115kV lattice structures and associated lines. The structures will be replaced with a new double-circuit 115kV monopole structure on the existing centerline of the transmission lines. Exceptions to this general design include:
- For an approximately .2-mile span near Big tree Road, the existing 115kV double-circuit lattice structure and 34.5kV sub-transmission structure will be removed and replaced with a new triple-circuit monopole structure, housing two 115kV lines and one 34.5kV line.
- Some structures will not be removed and will instead have the existing conductor (wires) replaced with new conductor. These structures are located near the FedEx distribution facility and south of the Mile Strip Expressway.
- West of Seneca drive, three structures would be rebuilt in the general design, but the centerline will be moved approximately 38 feet to the west.
Segment 4 (Runs east to west. Then mile 15.3 to 16.9): Located in the Town of Lackawanna, the existing double-circuit 115kV lattice structures and associated wires would be removed and not replaced in the transmission right-of-way (ROW). The new structures would instead be built in the Segment 4 Bypass ROW, described below.
Segment 4 Bypass: The Segment 4 Bypass is located in the Towns of Hamburg and Lackawanna, and will be built using existing an existing transmission right-of-way. A new double-circuit 115kV monopole structure will be built to the west of existing double-circuit 115kV lattice structures.
Segment 5 (Mile 16.9 to 18.9): Located in the Towns of Lackawanna and West Seneca, the existing single-circuit 34.5kV lattice structure would be removed and replace with a double-circuit 115kV monopole structure. Also, the existing double-circuit 115kV lattice structure would be removed and replaced with a single-circuit 34.5kV sub-transmission pole structure.
Segment 6 (Mile 18.9 to 20.3): Located in the Town of West Seneca and terminating before the Gardenville Substation, Segment 6 generally involves the removal of existing double-circuit 115kV lattice structures and replacing them approximately 45 feet west of the existing centerline with a double-circuit 115kV monopole structure. The final .4 miles of the project (near Meyer Road, State Highway 400, and Center Road) would involve reconductoring (replacing wires) on existing lattice structures.