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CX-007141: Categorical Exclusion Determination

Electrical District 4 - Electrical District 5 - Structure Replacement
CX(s) Applied: B4.6
Date: 09/01/2011
Location(s): Pinal County, Arizona
Office(s): Western Area Power Administration-Desert Southwest Region

Western proposes to replace 9.2 miles of 115-kilovolt (kV) wood H-frame structures with 230-kV double-circuit steel monopoles and the existing conductor with a single circuit of 1272 kcmil ACSS. The second circuit will not be installed as a part of this project. The rebuild will include new hardware and insulators as well as one optical ground wire (OPGW) for the entire length of the line. Western will use existing access roads to bring personnel and equipment to the work area. The new lines will be designed to accommodate growth in the area by providing additional clearances from encroachments. Work will be conducted within Western's 100-foot right-of-way (ROW). No work will be conducted within the fenced area of the electrical district #5 Substation. Minor work will be conducted within the fence at the ED4 Substation on one existing take-off structure where OPGW will be installed.