Fort St. Vrain

Basic Facts:

  • Location: Platteville, Colorado
  • Owner: Public Service Company of Colorado
  • Total Construction Cost: $700M (2018$)
  • Total Plant Output: 330 MW
  • Property Size: 100 acres
  • Status: Decommissioned
  • Decommissioning Cost: $230M (2018$)
  • License Termination: 1997
  • Spent Nuclear Fuel on Site: 15 tons
oyster creek


Fort St. Vrain was the first plant in the United States built as a high-temperature, gas-cooled commercial reactor. Construction began in 1968 and the plant operated from 1979 to 1988. During a maintenance program in 1988, cracks were discovered in the steam generator causing the plant owners to terminate operations that same year.


Following termination of operations, the plant was subsequently defueled and decommissioned with the site released for unrestricted use in 1997. The Fort St. Vrain site now hosts a 1,000 MW natural gas powered electricity-generating facility.


Fort St. Vrain is located in Weld County, Colorado. As of 2016:

  • Population: 300,000
  • Per Capita Annual Income: $42,700
  • Unemployment rate (not seasonally adjusted): 2.7%

Contact Information

Economic Development Administration Representative:

Nuclear Regulatory Commission Contact

Unless specific costing information has been provided, decommissioning costs were derived from 2017 Decommissioning Funding Status Report.
Information herein obtained from public sources. Corrections are welcome and may be directed to [email protected].

Additional Information

No recent news about this plant. Try a search for other related news below.

(802) 345-7044




Download our

free report

Discover tools and information for improving project outcomes and
catalyzing economic recovery

Scroll to Top