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603 MW Hydro operating in Walla Walla, WA — Bonneville Power Administration
603 MW
Nameplate Capacity
6
Generators
units
Conventional Hydroelectric
Technology
1962
Operating Since
Coordinates
46.2498, -118.8798
County
Walla Walla, WA
Nearby Plants
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | USACE Northwestern Division | US Army Corps of Engineers - Walla Walla District | United States Army Corps of Engineers |
| Owner(s) | USACE Northwestern Division | US Army Corps of Engineers - Walla Walla District | — |
| Status | Operating | operating | — |
GEM identifies the owner as US Army Corps of Engineers - Walla Walla District
This entity is not yet in the GEM ownership database — chain unavailable.
Ice Harbor Lock and Dam is a hydroelectric, concrete gravity run-of-the-river dam in the northwest United States. On the lower Snake River in southeastern Washington, it bridges Walla Walla and Franklin counties. Located eight miles (13 km) northeast of Burbank and twelve miles (19 km) east of Pasco, river mile 9.7, the dam's name comes from a tiny bay in the river where boats once tied up to wait for upstream ice-jams to break up.
Read more on WikipediaIce Harbor is a 603 MW hydroelectric power plant located in Walla Walla County, Washington. The plant began operating in 1962 and utilizes conventional hydroelectric technology. It has six generators and is owned and operated by the USACE Northwestern Division. The primary fuel source is water (WAT).
Ice Harbor is the 12th largest power plant in Washington out of 23, and the 41st largest hydroelectric plant nationally out of 194. The plant operates within the Bonneville Power Administration balancing authority and the WECC NERC region. In the latest year of reported generation data, Ice Harbor produced 1,511,186 MWh of electricity, achieving a capacity factor of 28.6%.
Generated from EIA, GEM, and public data sources
Grid Region
Pacific Northwest
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
194.0K MWh
Latest Month
1.5M MWh
Annual Generation
28.6%
Capacity Factor
2013
$2,294/kW
Est. Construction Cost
Total estimated cost: $1.4B
This plant's balancing authority participates in CAISO's Western Energy Imbalance Market (WEIM). Direct nodal pricing data is not yet available.
Last updated 2026-03-14
View all 5 articlesNo ask pi reports yet for this entity.
ask pi about Ice HarborBonneville Power Administration (BPAT)
Grid Voltage
115.0 kV
Regulatory Status
RE — Regulated
Entity Type
Federal
Sector
Electric Utility