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UMPS Assessment & Flow Restoration of Ranney Well Radial Collector Laterals at Connecticut River Power Plant

The Challenge  Cooling water intake cleaning is a continual challenge for power plants. But what happens when the cooling water intakes are screened laterals that are the heart of a Ranney Radial Well System?   The Kleen Energy power plant in Connecticut has two Ranney Vertical Wells supplying their cooling [...]

2022-08-31T22:08:31+00:00August 24th, 2022|

Dam Stilling Basin Repair

In November 2020, Underwater Construction Corporation (UCC) was contracted by a hydroelectric utility to conduct repairs to a dam’s stilling basin.  Previous inspections had identified areas of spalling and exposed concrete reinforcement.  Additionally, a section of baffle blocks had become dislodged and swept downstream during a high-water event.   To [...]

2022-07-27T20:01:05+00:00October 6th, 2021|

Midwest Nuclear Station Water Intake Structure Repair

In the spring of 2013 Underwater Construction Corporation (UCC) worked with a Midwest nuclear station to develop a repair plan for the sites raw water intake structure. In July 2013 the formal award was given whereby the mobilization of UCC’s crew and work vessel the “Salvor” began. The intake crib [...]

2022-07-27T20:06:25+00:00April 1st, 2015|

Standby Service Water Basins – Roof Slab Cracking

Underwater Coating Application to Seal Cracks (Nuclear Power Project – applicable to any industry with concrete infrastructure) The concrete roof slabs of SSW Basins A and B demonstrated full thickness cracking of the concrete slab covering a large portion of each basin.  The roof slab extends below the water line [...]

2022-07-27T20:08:53+00:00February 25th, 2015|

Decommissioning of Nuclear Storage Basin

Nuclear Storage Basin – Radioactive Sludge and Debris Removal Underwater removal & packaging of highly radioactive material (DOE Decommissioning Project – applicable to both government and commercial nuclear facilities) Over 300 dives were performed with no skin contaminations.  Radiological conditions were extreme with contact dose rates in the sludge ranging from [...]

2022-07-27T20:09:25+00:00February 24th, 2015|
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