Alton Steel site eyed for major data center project

5 articles, oldest first.

1. FOX 2 St. Louis

   Alton Steel could sell former mill site to data center developer ↗ (opens FOX 2 St. Louis)

   Published Oct 21, 2026

   FOX 2 St. Louis's feed description

   The former Alton Steel mill industrial site could become a data center under a proposed sale to TerraWatt, a California-based data center developer.

2. River Bender

   Former Alton Steel Mill Considered for Data Center Campus ↗ (opens River Bender)

   Published Oct 21, 2026

   River Bender's feed description

   ALTON — Alton Steel Inc. said Oct. 21, 2026, it is advancing a proposed sale of its former steel mill property to data center developer TerraWatt, seeking to repay creditors and return the 381-acre industrial site to productive use.

3. River Bender

   Alton Weighs Data Center Campus at Former Steel Site ↗ (opens River Bender)

   Published Oct 21, 2026

   River Bender's feed description

   ALTON — Alton officials are reviewing a potential proposal from Alton Steel Inc. and TerraWatt to purchase and redevelop the former Alton Steel property as a data center campus, weighing the prospect of new investment against questions about resource use and community impacts.

4. St. Louis Post-Dispatch

   Data center proposed for old Alton Steel site ↗ (opens St. Louis Post-Dispatch)

   Published Oct 21, 2026

   St. Louis Post-Dispatch's feed description

   Defunct steel plant's owners want to sell to TerraWatt, which also is involved in a data center proposal for the old Famous-Barr warehouse in St. Louis.

5. FOX 2 St. Louis

   Alton Steel site eyed for major data center project ↗ (opens FOX 2 St. Louis)

   Published Oct 22, 2026

   FOX 2 St. Louis's feed description

   A 381-acre former steel mill site in Alton could be repurposed for the digital age, with a company proposing to build a data center on the property.