Maps and visuals
The proposed route for the 600 kilovolt direct-current transmission line is approximately 725 miles in length, with a typical right-of-way width of 250 feet. Two substation/converter stations, approximately 200 acres in size, will be constructed at each terminating point. In addition to the proposed route, the right-of-way application submitted to the Bureau of Land Management by TransWest Express LLC includes alternative routes.
These maps show the proposed and alternative corridors carried forward for analysis by BLM/Western in the Draft EIS, as explained in their October 2012 EIS update newsletter. For the purposes of the environmental analysis, these study corridors are approximately 2 miles wide; however, the line’s ultimate right-of-way typically will be just 250 feet. TransWest’s proposed corridor has remained consistent since summer 2011, when the company modified portions of its proposed route to reflect specific preferences of local county commissions, as documented in multi-county joint resolutions.
Power lines
Along the route, transmission structure heights may vary from 100 feet to 180 feet depending upon structure type, terrain, span and line crossings. The span between structures may vary from 900 to 1,500 feet.
Conceptual structures
| Single-circuit steel-lattice self-supporting structure |
Single-circuit monopole tubular steel structure |
Single-circuit guyed structure |
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