Columbia Ridge Landfill
BrownfieldArlington, Oregon
Columbia Ridge Landfill is a former landfill site in Arlington, Oregon. Retired generation sites are among the most attractive datacenter redevelopment targets: the existing interconnection was sized for roughly 100 MW of generation, so the grid hookup, transmission rights, and often cooling-water access are already in place — collapsing the speed-to-power timeline versus a greenfield build.
Former use & capacity
Grid hookup & remediation
Nearby brownfield & retired-generation sites
A proximity screen of other retired-plant, contaminated, and EPA-flagged sites near Columbia Ridge Landfill — the environmental neighborhood, ranked by legacy grid capacity.
| Site | Former use | Legacy MW | Distance | Cleanup status |
|---|---|---|---|---|
| Boardman | coal plant | 642 | 18.5 mi | — |
| Columbia Ridge Landfill Phase II | former landfill site | 50 | 0.0 mi | cleanup_complete |
Derived from GridCensus's retired-generator & EPA brownfield dataset. Not a substitute for an ASTM E1527 Phase I environmental radius report.
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Nearby datacenter candidate sites
Scored candidate sites near Columbia Ridge Landfill, ranked by DC Readiness.
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| Boardman | Brownfield | OR | Morrow County | — | 642 MW | 1.7 yrs | 65.9 |
| SLATT | Substation-Adjacent | OR | Gilliam County | 500 kV | 1,000 MW | 6.9 yrs | 65.3 |
| ROCK CREEK | Substation-Adjacent | WA | Klickitat County | 500 kV | 1,000 MW | 6.9 yrs | 63.4 |
| Columbia Ridge Landfill Phase II | Brownfield | OR | Gilliam | 115 kV | 50 MW | 6.9 yrs | 62.9 |
| HAY CANYON | Substation-Adjacent | OR | Sherman County | 345 kV | 600 MW | 6.9 yrs | 61.9 |
| SHEPHERDS NORTH | Substation-Adjacent | OR | Gilliam County | 230 kV | 300 MW | 6.9 yrs | 61.6 |
| DALREED | Substation-Adjacent | OR | Gilliam County | 230 kV | 300 MW | 6.9 yrs | 61.6 |
| EC Near Boardman | Greenfield | OR | Morrow | — | — | 1.7 yrs | 61.3 |
See all datacenter sites in Oregon →
Dataset updated . Screening estimates derived from public data sources.
Brownfield attributes are derived from EIA retired-generator and EPA public data. Existing capacity reflects the retired plant's historical nameplate, not deliverable interconnection for a new load. Confirm reusable interconnection rights, remediation status, and site availability with the utility, ISO, and current owner.
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Every site and score for Columbia Ridge Landfill, Arlington, Oregon is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.