The Department of Energy’s Office of Environmental Management announced it had completed the largest demolition project yet at the Y-12 National Security Complex in Oak Ridge, Tenn., when it took down the final wall of a 325,000-square-foot former uranium enrichment facility last week.

The Department of Energy’s Office of Environmental Management said it was insight and a questioning attitude from a project manager that led the Oak Ridge Office of Environmental Management (OREM) to accelerate the demolition of the Alpha-4 building at Oak Ridge’s Y-12 National Security Complex, helping avoid millions of dollars in costs to taxpayers.

. . . and today.

Weitzberg then. . .

My first exposure to nuclear engineering was in 1956–57 when I was a fourth-­year chemical engineering undergraduate at MIT. The previous summer, I worked at an oil refinery in New Jersey and our class visited a Monsanto sulfuric acid factory in Boston Harbor. I lost my enthusiasm for chemical engineering and decided to take a couple of introductory nuclear engineering courses as a senior. After a summer job at Y-­12 in Oak Ridge, I started on a nuclear engineering master’s degree program. (An Atomic Energy Commission fellowship certainly helped my decision.)

The following summer, I performed reactor physics experiments at Brookhaven with Herb Kouts, Joe Hendrie, Rudy Sher, and Henry Windsor. In January 1962, after defending my Ph.D. dissertation on measuring uranium-­238 capture in lattices of uranium rods in heavy water, I headed to Los Angeles to work on SNAP reactors for Atomics International. There, I performed critical experiments and managed their aerospace safety program.

The Department of Energy’s Office of Environmental Management said that crews with the Oak Ridge Office of Environmental Management (OREM) and its cleanup contractor UCOR are preparing to demolish another deteriorating Manhattan Project–era building at the Y-12 National Security Complex at Oak Ridge, Tenn.

The Department of Energy has announced that workers at its Savannah River Site in South Carolina recently removed legacy uranium materials from the site’s HB Line as part of an effort to clear the facility of its inventory of legacy nuclear materials. The removed legacy uranium was originally produced by the Y-12 National Security Complex at Oak Ridge, Tenn.

Nichols

The Oak Ridgerhas published the latest in a series of articles aboutGeneral Kenneth D. Nichols, the Manhattan Project, and the 1954 Atomic Energy Act. The series has been produced by Nichols’ grandniece Barbara Rogers Scollin and Oak Ridge (Tenn.) city historianDavid Ray Smith. Gen. Nichols (1907–2000) was the district engineer for the Manhattan Engineer District during the Manhattan Project.

As Smith and Scollin explain, Nichols “had supervision of the research and development connected with, and the design, construction, and operation of, all plants required to produce plutonium-239 and uranium-235, including the construction of the towns of Oak Ridge, Tennessee, and Richland, Washington. The responsibility of his position was massive as he oversaw a workforce of both military and civilian personnel of approximately 125,000; his Oak Ridge office became the center of the wartime atomic energy’s activities.”

Workers with the Oak Ridge Office of Environmental Management (OREM) and its contractor UCOR have finished installing the first of three large sludge-settling tanks for the Mercury Treatment Facility at the site’s Y-12 National Security Complex. The tanks, each of which will be 38 feet tall and 15 feet wide with a capacity of 36,000 gallons, provide a visible sign of ongoing progress on the facility where much of the construction has so far been below ground.

The Department of Energy’s Office of Environmental Management announced the signing of a project labor agreement (PLA) between Oak Ridge Office of Environmental Management (OREM) contractor UCOR and North America’s Building Trades Unions (NABTU). The agreement, which allows for flexibility in wage increases and other incentives, is expected to help recruit and retain skilled construction trade workers at the DOE site in Tennessee.

The National Nuclear Security Administration has issued the fiscal year 2023 results of the performance of its managing and operating (M&O) partners in meeting the agency’s expectations.

The Department of Energy announced that its Oak Ridge Office of Environmental Management (OREM) is moving ahead with a slate of projects this year that will alter the Tennessee site’s skyline, remove inventories of nuclear waste, and complete a major phase of cleanup.

A significant percentage of the workforce at the Department of Energy’s Oak Ridge Reservation in Tennessee is eligible to retire in the next decade, according to the agency. In an effort to address the potential for a staffing shortage, UCOR, the DOE’s Oak Ridge Office of Environmental Management contractor for cleanup activities at the site, is building a consortium with colleges and universities in the region. The collaboration aims to guide more students toward nuclear-applicable careers to build the next generation of workers for Oak Ridge and the nuclear industry at large.

National, state, and local leaders joined the Department of Energy’s Oak Ridge Office of Environmental Management (OREM) and its lead cleanup contractor, United Cleanup Oak Ridge (UCOR), earlier this month to celebrate the groundbreaking for a new on-site disposal facility at the Oak Ridge Reservation in Tennessee.

Watch a video highlighting the Environmental Management Disposal Facility groundbreaking ceremonyhere.

The Department of Energy’s Office of Environmental Management said that crews have completed major deactivation efforts at the Alpha-2 building at the Y-12 National Security Complex in Oak Ridge, Tenn. The former uranium enrichment facility is scheduled for demolition next year.

The Molten Salt Reactor Experiment (MSRE) facility is one of hundreds of old, contaminated buildings atOak Ridge National Laboratory and theY-12 National Security Complex in Tennessee that are slated to be taken down.

BWX Technologiesannounced on April 10 that its Nuclear Fuel Services subsidiary in Erwin, Tenn., has been awarded a five-year, $428 million contract from the National Nuclear Security Administration to purify and convert high-enriched uranium (HEU) from an oxide to a metal. The Phase II contract follows the successful completion by NFS of a$57.5 million contract awarded two years ago for a process line design and pilot demonstration.

A fire broke out at the Y-12 National Security Complex in Oak Ridge, Tenn., earlier today. According to Y-12’sFacebook page, one of the site’s production buildings had a fire in a hood at approximately 9:15 a.m. Y-12 emergency services responded to the event and precautionary protective actions were initiated for employees who were in the vicinity of the incident and who were not involved in the emergency response.

A contractor for the Department of Energy’s Office of Environmental Management (EM) started tearing down a 1940s-era facility in May at the Y-12 National Security Complex in Oak Ridge, Tenn. Demolition of the former Criticality Experiment Laboratory, also known as Building 9213, is the latest project by EM to address a large inventory of high-risk excess contaminated facilities at the Oak Ridge Reservation.

The National Nuclear Security Administration announced last week that it is canceling its November 2020 contract solicitation for management and operation of the Pantex Plant and Y-12 National Security Complex and terminating the contract award announced in November 2021 for the two sites. The NNSA intends to hold two new competitions for separate contracts to manage each site.

Ultra Safe Nuclear Corporation (USNC), an advanced reactor and reactor fuel developer, announced last week that it plans to begin operations this summer at its Pilot Fuel Manufacturing (PFM) facility in Oak Ridge, Tenn., pending the receipt of the requisite state and local permits. The facility is located in the East Tennessee Technology Park, site of the Manhattan Project’s K-25 gaseous diffusion plant. USNC purchased an 8.7-acre site—which included a preexisting industrial building—from Heritage Center LLC in 2021.

Crews with the Department of Energy’s Office of Environmental Management (EM) have completed the demolition of Building 9207, the largest and final building at the former Biology Complex at the Y-12 National Security Complex in Oak Ridge, Tenn., the DOE announced this week. Removal of the massive six-story, 255,000-square-foot building ushers in a new chapter of transformation at Y-12, the DOE said.