The Challenge Many municipal and private water treatment plants need to condition their incoming raw water with the removal of suspended solids materials. This task is typically performed through chemical conditioning with the addition of an approved precipitating / flocculating chemical in preparation for gravity settling of these solids. [...]
In the shadow of the Rocky statue at the Philadelphia Museum of Art, Underwater Mineral Processing Services (UMPS), an operational division of Underwater Construction Corporation (UCC), was contracted under a Philadelphia Water Works Park Amenities & Island Enhancement Project to process 2,000 gallons per minute (gpm) of hydraulically dredged [...]
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 [...]
The USGS figure below presents the point distribution map of Dreissena polymorpha throughout the continental US through February 2019. Figure 1: Zebra Mussel Population Estimates Non-native zebra and quagga mussels invaded the Great Lakes region in the early 1990s arriving in foreign ships’ ballast water. Some [...]
50 YEARS OF ENVIRONMENTAL IMPACT Fifty years of harsh marine environmental impact required the rehabilitation of the bridge pier steel casings. Previous marine infrastructure repairs such as fiberglass jackets filled with no shrink grout or a combination of steel jackets with grout and reinforcing steel did not stand the test [...]
During a routine ROV inspection performed by a contractor, it was discovered that a head gate seal plate had fallen off. Upon further inspection, it was discovered that the attachment hardware had corroded to the point of failure on the other intake slots as well. This was most likely due [...]
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 [...]
Hydroelectric Facility Work Scope – Head Gate Rail and Cable Tray Service Drilling and Anchor Installations Rock and Other Debris Removal Air Surface Supplied Diving Depth – 167 Feet Number of Dives – 250 Unique Variables Specialized Navy Dive Table and Schedule due to 2400 Feet Altitude Surface Decompression [...]
Carbon Fiber Reinforced Polymer The facility is a water reservoir built in the 1920s. Recently leaks and spalling of concrete have been observed. Composite Construction, LLC of Tucson, Arizona and its partner, Connecticut's Underwater Construction Corporation provided a solution using its propriety carbon fiber reinforced polymer concrete. This propriety system [...]
Large Area coating application of all underwater surfaces in a nuclear power plant transfer canals and spent fuel pools. 10" Paddle Bio-Dur Lt Ivory Coating 7" Grinders with Swirl - off Wheels and Diamond wheels for surface preparation Suction [...]
