Oregon Steel Mills Portland (Rivergate)
Large load · 14400 N. Rivergate Blvd, Portland, OR
Oregon Steel Mills operates a plate and coil rolling mill at Rivergate in Portland, Oregon, with annual capacity of 1.2 million tons. It is owned by Orion Steel Companies, formed by Atlas Holdings in 2025, and its meltshop closed in 2003.
Overview
Oregon Steel Mills produces discrete plate and coiled plate products at Portland. Its annual capacity is 1.2 million tons. The company employs approximately 400 people in Portland.
Profile
- Electricity and grid
- The Oregon PUC in Order 84-430 granted Portland General Electric's request to make two contracts with Gilmore Steel, the mill's predecessor, effective June 6, 1984. A 2022 trustee memorandum states that Evraz acquired a property to secure a power contract with the Bonneville Power Administration because of Evraz's high electricity use on nearby sites. An engineering reference for the Portland steel mill lists 12.47kV distribution of 21MVA total with two secondary unit substations.
- Ownership
- Orion Steel owns and operates Oregon Steel Mills. Atlas Holdings formed Orion Steel Companies after completing its acquisition of EVRAZ North America.
- Recent changes
- The Portland meltshop was shut down in the second quarter of 2003. Oregon Steel Mills hired Casey Equipment Corp. to liquidate the company's 800,000 tons/year Portland meltshop in 2004.
Facility
- Activity
- Plate and coil steel products
- Industry
- Manufacturing
- Site type
- Facility
- Operating status
- Operating
Related records
Timeline
- Jun 6, 1984
- Oregon PUC approved two PGE contracts with Gilmore Steel.
State of Oregon: Public Utility Commission of Oregon
- Apr 14, 2004
- Meltshop liquidation contract announced.
Casey to Liquidate Oregon Steel’s Portland Meltshop - Association for Iron & Steel Technology
- Jul 31, 2025
- Atlas Holdings formed Orion Steel after acquiring EVRAZ North America.
Atlas Completes Acquisition of Steelmaker EVRAZ North America; Forms Orion Steel and Appoints Doug Matthews CEO » Atlas Holdings