nuclear-news

The reactor pressure vessel that helped generate electricity at Unit 1 of the plant arrived last week at a licensed disposal site about 75 miles west of Salt Lake City after being shipped by rail and then over highways in Nevada and Utah…….

Six heavy-duty Class 8 trucks with combined 4,000-horsepower moved the the load. The convoy used 460 tires that were 18 inches wide to prevent damaging roads, bridges and public infrastructure. Contractors from Emmert International used hydraulic jacks to reinforce drainage culverts.

A spokesman for the Nevada Department of Transportation said it was the heaviest load to ever traverse the Silver State’s roadways. Transportation officials in Utah said the shipment arrived July 14 without any issues.

The pressure vessel once held nuclear fuel at SONGS when Unit 1 was in operation between 1968 and 1992. For 18 years, the vessel sat on the north end of the plant, covered in a shell of steel two inches thick with a top and bottom each each inches thick to shield against radiation.

Encased in a carbon steel cylinder for the trip, the vessel contained pieces of radioactive metal and grout. The shipment was designated as Class A low-level waste, considered by the U.S. Nuclear Regulatory Commission as the least hazardous of radioactive waste classifications.

The shipment is one of many that will head to the Clive disposal facility as part of a scheduled eight-year process to dismantle SONGS, although future shipments will not be as large. Energy Solutions and construction giant AECOM have partnered to undertake the $4.4 billion demolition project, which began earlier this year……. f all goes as planned, by the time dismantlement at SONGS is completed, all that will remain will be two dry storage facilities holding 3.55 million pounds of used-up fuel, or waste, that accumulated during the time the plant produced power; a security building with personnel to look over the waste enclosed in casks; a seawall 28 feet high at its base; a walkway connecting two beaches north and south of the plant and a switch-yard with power lines.

The distinctive 200-feet-high twin domes that loom over Interstate 5 are scheduled to come down between late 2025 and 2027. https://www.sandiegouniontribune.com/business/story/2020-07-20/770-ton-load-from-san-onofre-nuclear-plant-finishes-trip-to-ut