Now he's tackling something bigger: the K-25 plant in Trice will oversee the dismantling of the mile-long, U-shaped structure built during World War II to process uranium for atomic bombs. At the time of its construction, K-25 was the world's largest building under one roof. Sixty years later, it's just a big mess.
The nuclear behemoth was shut down in the 1960s and largely neglected since then. It is loaded with deposits of fissile U-235 and fraught with potential pitfalls.
Trice's assignment as project manager comes as Bechtel Jacobs Co., the Department of Energy's cleanup contractor, revamps its strategy at K-25 to bolster safety. The changes were prompted by an accident earlier this year when a sheet-metal worker fell through a weakened floor at the old building.
"We've had the concerns for some time, but that led us to do a better analysis," Trice said.
The 43-year-old engineer, with a background in the Navy's nuclear submarine program, joined Bechtel a couple of years ago and came to "This is my 13th DOE site," he said, including the aforementioned Building 771 at Rocky Flats.
Under the revised K-25 plan, machines will replace humans in a major way. The cleanup work force, once expected to reach 1,200, will now peak at about 600-700, Trice said.
Instead of using workers to physically dismantle much of the 100 miles of piping and associated components within the maze of uranium-enrichment equipment, Bechtel Jacobs plans to bulldoze it into a manageable heap - along with tons and tons of construction rubble.
The key to this strategy will be locating potentially dangerous deposits of highly enriched uranium so sections of equipment can be removed before the demolition begins. Those high-risk sections will be taken to "segmentation shops," where the U-235 can be removed and transported to the Y-12 nuclear weapons plant for safekeeping.
The concern is that if deposits of highly enriched uranium are left in place during demolition, it could create unsafe conditions and possibly cause a criticality accident - an unplanned, uncontrolled nuclear chain reaction and release of radiation.
Therefore, an exhaustive effort will be made to locate and remove any significant quantities of fissionable uranium, Trice said. About five different methods will be used in the nuclear treasure hunt, including snakelike cameras to view the innards of pipes, he said.
John Owsley, who oversees the He said the biggest issue is whether DOE and its contractors can properly track and verify the waste contents - including the amount of uranium - when mixing the contaminated processing equipment and construction rubble.
"They have to be able to document any anomalies," Owsley said, noting the possibility of uranium deposits being masked by chunks of concrete and other debris. So far, state officials have not received enough assurances, he said.
Bechtel Jacobs officials would not release an estimate of how much U-235 remains lodged inside the K-25 equipment, apparently because that information is classified. They confirmed that previous campaigns undertaken years ago identified and removed some of the larger deposits.
Much of the processing equipment will be injected with foam to stabilize the contamination before the demolition takes place.
Because of the January accident, which underscored the building's deterioration - especially concrete panels on the second floor - very few workers will be allowed upstairs. Also, a series of nets and barriers will protect downstairs workers from falling debris.
The change in cleanup strategy requires Bechtel Jacobs or subcontractors to install a new criticality alarm system, and there will be a huge investment in heavy machinery armed with an array of shears and grapples, loaders and misters. Redundant machines may be required at as many as seven different demolition areas at a time once work gets fully charged.
The new investments, however, are offset by an overall reduction of 1.3 million hours in labor costs, according to Trice.
The estimated cost of the K-25 project, which includes the demolition of the nearby K-27 building, has declined slightly from $501.6 million to $493.7 million, Bechtel Jacobs said.
If the new plan enhances worker safety, improves efficiency and still saves money, why wasn't that strategy chosen in the first place?
"I don't know. I can't answer that," Trice said. "Given the deteriorating of the building and the safety we're trying to attain, this is the best approach now."
Demolition work on the west side of the K-25 building is scheduled to begin in April 2007. Work is to be completed in August 2009, based on the latest planning documents.
Bechtel Jacobs was originally scheduled to have the K-25 project completed by October 2008. The federal contractor stands to lose millions of dollars in fees for the delays, but Trice said that would not affect the decision-making.
"Right now we're interested in doing this as efficiently and safely as we can," he said. "We've got a very hard task to do. It's definitely a challenge for our workers."
Tennessee Governor Phil Bredesen and Economic and Community Development (ECD) Commissioner Matthew Kisber recently announced the approval of a $227,240 FastTrack Infrastructure Development Program (FIDP) grant to the East Tennessee State University Research Foundation.
The award will fund infrastructure improvements that will immediately benefit ProteoGenesis, Yasoo Health, and BioInventions, all start-up biotech companies based in the ETSU Innovation Lab. Future tenants will benefit as well.
The FIDP monies will supplement a $1 million grant awarded in 2005 by the U.S. Economic Development Administration and a cash contribution of over $800,000 from the ETSU Research Foundation for the addition of an 11,000-square-foot wing to the Innovation Lab. The state funds will be used toward the construction of six “wet labs” in the new addition. These wet labs are specialized spaces equipped with the plumbing and ventilation required by biotech companies engaged in research or testing. When completed, these labs will be the first of their kind in a business incubator in
The new wing will also house four “dry labs” suitable for electronics or light manufacturing, seven office suites, a conference room, and a tenant breakroom. The overall $2 million effort will increase the capacity of ETSU’s business incubator by up to 15 companies and support the creation of some 90 new jobs in
FIDP, formerly the Tennessee Industrial Infrastructure Program, was authorized by the Tennessee General Assembly in 1988 and is administered by ECD. Funds are used for infrastructure improvements, job-specific workforce training, or other economic development projects for
The ETSU Research Foundation applied for the grant with the support of Johnson City Mayor Steve Darden and the following state legislators: Sen. Rusty Crowe, Rep. David Davis, and Rep. Matthew Hill.