Research and test reactors, critical assemblies and prototypes at this site, as listed in the IAEA Research Reactor Database: type, thermal power, first criticality, shutdown date, current status and what each is used for.
2 reactors: 2 operational.
Reactor
Type
Thermal Power
First Criticality
Shutdown
Status
Used For
MTS-626
Pwr Propulsion
78 MWt
1963-04-27
Operational
teaching, training
MTS-635
Pwr Propulsion
78 MWt
1964-12-20
Operational
teaching, training
Source: IAEA Research Reactor Database (RRDB), as of 2026-10-13.
Active nuclear industry job listings in SC from the NukeWorker job board. Click a job title for full details, or click the header to search all jobs in this state.
Per diem covers lodging and meals & incidental expenses (M&IE) for government and contractor travel near this facility. Rates are from GSA for FY 2027. Lodging rates vary by month — click "Show Monthly" to see the breakdown.
$218
Lodging/Night
$218–$288 range
$92
M&IE/Day
$310
Total/Day
Charleston, Charleston / Berkeley / Dorchester County, SC
Maximum state unemployment insurance benefits for SC. Actual benefits depend on your earnings history and may be lower than the maximum. Data as of Jan 2026.
Interactive satellite map showing the facility's geographic location. Marker color indicates current status: green for online, red for offline, orange for reduced power. Click the header to open in Google Maps satellite view.
32.9449, -79.9288
Location & Contact
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Physical address, phone number, and website for this facility. Use the directions link to get driving directions via Google Maps.
Written by NukeWorker from public records: facts that do not change. Operator, status and capacity come from the live data elsewhere on this page. Sources: Wikipedia: Moored training ship; Wikipedia: USS Sam Rayburn; Wikipedia: USS Daniel Webster.
Naval Nuclear Power Training Unit Charleston is a U.S. Navy training site at the Naval Weapons Station, part of Joint Base Charleston, in Goose Creek, Berkeley County, South Carolina. It used two moored training ships, former ballistic missile submarines converted at Charleston Naval Shipyard, as platforms for Navy nuclear power instruction.
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USS Sam Rayburn (SSBN-635), a James Madison class submarine built by Newport News Shipbuilding, was commissioned on December 2, 1964, and was reclassified as moored training ship MTS-635 on July 31, 1989. USS Daniel Webster (SSBN-626), a Lafayette class submarine built by General Dynamics Electric Boat, was commissioned on April 9, 1964, and was reclassified as MTS-626 on August 30, 1990. Sam Rayburn left Charleston on April 1, 2021, for Norfolk Naval Shipyard.
