DOE/EIS-0332; McNary-John Day Transmission Line Project Draft ...

Bonneville Power Administration/McNary – John Day 500-kV Transmission-line Project
Tables: Electrical Effects
Figure 1: Configurations for the proposed McNary – John Day 500-kV line: a) Proposed line with parallel 230-kV and
345-kV lines (Configuration 1); b) Proposed line with parallel 230-kV, 345-kV, and double-circuit 500-kV lines
(Configuration 2); c) Proposed line with no parallel lines (Configuration 3); d) Proposed line with parallel 230kV,
345-kV, and 500-kV lines (Configurations 4 and 4B); and e) Proposed line on existing Hanford – John Day
500-kV line towers with parallel 230-kV, 345-kV, and 500-kV lines (Configuration 4A). (5 pages)
a) Proposed line with parallel 230-kV and 345-kV lines (Configuration 1) (not to scale)
SOUTH
EDGE OF ROW
Average 36.5'
Minimum 26.5'
Existing BPA McNary-
Horse Heaven 230-kV Line
62.5'
C B A
26.33'
Average 44'
Minimum 34'
125'
Existing BPA McNary-
Ross No. 1 345-kV Line
A C B
32'
Average 45'
Minimum 35'
125'
Proposed
BPA 500-kV Line
B
C A
48'
187.5'
34.5'
NORTH
EDGE OF ROW
45