Decommissioning Status for Shutdown U.S. Nuclear Plants

Reactor Name Reactor Type Megawatts Thermal (MWt) Location Operating License Issue Date Shutdown
Date		 Status
Big Rock Point BWR 240 Charlevoix, MI 5/1/1964 8/29/1997 DECON completed
Boiling Nuclear Superheater (BONUS)* BWR 50 Punta Higuera, PR 4/2/1964 6/1/1968 ENTOMB
Crystal River 3 PWR 2,609 Crystal River, FL 12/3/1976 2/20/2013 SAFSTOR
Carolinas-Virginia Tube Reactor (CVTR)** PTHW 65 Parr, SC 11/27/1962 1/1/1967 DECON completed
Dresden 1 BWR 700 Morris, IL 9/28/1959 10/31/1978 SAFSTOR
Duane Arnold BWR 1,912 Palo, IA 2/22/1974 8/10/2020 SAFSTOR
Elk River** BWR 58 Elk River, MN 11/6/1962 2/1/1968 DECON completed
Fermi 1 SCF 200 Newport, MI 5/10/1963 9/22/1972 SAFSTOR
Fort Calhoun PWR 1,500 Ft. Calhoun, NE 8/9/1973 10/24/2016 SAFSTOR
Fort St. Vrain HTG 842 Platteville, CO 12/21/1973 8/18/1989 DECON completed
GE EVESR Experimental Superheat Reactor 12.5 Sunol, CA 11/12/1963 2/1/1967 SAFSTOR
GE Vallecitos BWR (VBWR) BWR 50 Sunol, CA 8/31/1957 12/19/1963 SAFSTOR
Haddam Neck PWR 1,825 Meriden, CT 12/27/1974 12/5/1996 DECON completed
Hallam* SCGM 256 Hallam, NE 1/2/1962 9/1/1964 ENTOMB
Humboldt Bay 3 BWR 200 Eureka, CA 8/28/1962 7/2/1976 DECON in progress
Indian Point 1 PWR 615 Buchanan, NY 3/26/1962 10/31/1974 DECON in progress
Indian Point 2 PWR 3,216 Buchanan, NY 9/28/1973 4/30/2020 DECON in progress
Indian Point 3 PWR 3,216 Buchanan, NY 12/12/1975 4/30/2021 DECON in progress
Kewaunee PWR 1,772 Carlton, WI 12/21/1973 5/7/2013 SAFSTOR
La Crosse BWR 165 Genoa, WI 7/3/1967 4/30/1987 DECON in progress
Maine Yankee PWR 2,700 Wiscasset, ME 6/29/1973 12/6/1996 DECON completed
Millstone 1 BWR 2,011 Waterford, CT 10/31/1970 7/21/1998 SAFSTOR
Nuclear Ship Savannah PWR 74 Baltimore, MD 8/1/1965 11/1/1970 DECON in progress
Oyster Creek BWR 1,930 Forked River, NJ 4/9/1969 9/17/2018 SAFSTOR
Pathfinder BWR 190 Sioux Falls, SD 3/12/1964 9/16/1967 DECON completed
Peach Bottom 1 HTG 115 Delta, PA 1/24/1966 10/31/1974 SAFSTOR
Piqua* OCM 46 Piqua, OH 8/23/1962 1/1/1966 ENTOMB
Pilgrim BWR 2,028 Plymouth, MA 6/8/1972 5/31/2019 DECON
Rancho Seco PWR 2,772 Herald, CA 8/16/1974 6/7/1989 DECON completed
San Onofre 1 PWR 1,347 San Clemente, CA 3/27/1967 11/30/1992 DECON in progress
San Onofre 2 PWR 3,438 San Clemente, CA 2/16/1982 6/12/2013 DECON in progress
San Onofre 3 PWR 3,438 San Clemente, CA 11/15/1982 6/12/2013 DECON in progress
Saxton PWR 24 Saxton, PA 11/15/1961 5/1/1972 DECON completed
Shippingport** PWR 236 Shippingport, PA NA 12/1989 DECON completed
Shoreham BWR 2,436 Wading River, NY 4/21/1989 6/28/1989 DECON completed
Three Mile Island 1 PWR 2,568 Middletown, PA 4/19/1974 9/20/2019 SAFSTOR
Three Mile Island 2 PWR 2,770 Middletown, PA 2/8/1978 3/28/1979 DECON in progress
Trojan PWR 3,411 Rainier, OR 11/21/1975 11/9/1992 DECON completed
Vermont Yankee BWR 1,912 Vernon, VT 3/21/1972 12/29/2014 DECON in progress
Yankee Rowe PWR 600 Rowe, MA 7/9/1960 10/1/1991 DECON completed
Zion 1 PWR 3,250 Zion, IL 10/19/1973 2/21/1997 DECON in progress
Zion 2 PWR 3,250 Zion, IL 11/14/1973 9/19/1996 DECON in progress
* AEC/DOE owned; not regulated by NRC.                
** Decommissioned before the formation of the NRC or not licensed by the NRC.
Explanation of Decommissioning Statuses:
  • DECON - soon after the nuclear facility closes, equipment, structures, and portions of the facility containing  radioactive contaminants are removed or decontaminated to a level that permits release of the property and termination of the NRC license.         
  • SAFSTOR - often considered "delayed DECON," a nuclear facility is maintained and monitored in a condition that allows the radioactivity to decay; afterwards, it is dismantled.                 
  • ENTOMB - radioactive contaminants are encased in a structurally long-lived material, such as concrete. The entombment structure is appropriately maintained, and continued surveillance is carried out until the radioactivity decays to a level permitting unrestricted release of the property.    
Source: U.S. Nuclear Regulatory Commission, U.S. Department of Energy, and the International Atomic Energy Agency   
Updated: AUGUST 2022