ProjectRegional context
Six Mile Canyon 230/500 kV Substation
About this record
BPA transmission project. A project record with the source’s own status, dates and estimates. A proposal or connection request does not establish operation.
2026-07-29
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BPA transmission project
Bonneville Power Administration - Portfolio cycleBPA’s planned transmission upgrades, with published status, cost estimates and expected dates.Definition ↗
- GERP 1.0
- Status
- Design(filed as “DESIGN”)
- Expected energization
- 2028
- Bundle
- SIX MILE CANYON 500KV/230KV SUBSTATION (WEST OF BOARDMAN)
This is a proposed new 230/500-kV hub substation called Six Mile Canyon near Boardman, OR.
Justification as BPA states it: Will create additional capacity to support regional load growth, reliability needs and commercial requests for long-term transmission
Substations
A planning bundle in BPA's Grid Expansion and Reinforcement Portfolio: status, expected energization and cost change with each cycle; not a permit, a contract or a route. Proposed new or rebuilt substations as BPA published them for its GERP cycle: expected energization year, estimated cost in dollars and status are planning figures at publication; the point is the existing substation yard or the named site.
Map location unavailable. This plant remains part of the source inventory and tables.
Estimated cost
250,000,000USD
Source & method
The publisher's planning estimate for the project at publication (BPA GERP: nominal dollars as the layer carries it on the bundle, which does not say what it covers; BPA's summaries can state it for a group of projects); not a budget, contract or actual
2026-07-29 · reported · direct · valid · final
BPA's planning estimate as the layer carries it on this bundle at publication; nominal dollars. The layer does not say what it covers; BPA's project summaries can state it for a group of projects (group_name)
Bundle_ID=P05580; layer=substations
Publisher & attribution ↗ Cite this released fact ↗ Geographic & reporting context
A planning bundle in BPA's Grid Expansion and Reinforcement Portfolio: status, expected energization and cost change with each cycle; not a permit, a contract or a route. Proposed new or rebuilt substations as BPA published them for its GERP cycle: expected energization year, estimated cost in dollars and status are planning figures at publication; the point is the existing substation yard or the named site.
Grid Expansion & Reinforcement Portfolio, substation projects (Evolving Grid), layer 10
Bonneville Power Administration, Grid Expansion & Reinforcement Portfolio substation projects (Evolving Grid), 2026
Proposed new or rebuilt substations as BPA published them for its GERP cycle: expected energization year, estimated cost in dollars and status are planning figures at publication; the point is the existing substation yard or the named site.
Release 20260929T050546Z-51ae0f7d3c78 · Record JSON