Marine Services

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Power Plant Intake Underwater Structure Repair

UCC performed an inspection on the raw water intake structures of a power generation facility. Findings revealed that 75% of the structure cap and support members underneath the cap had collapsed over the winter. While final repair drawings were being developed UCC performed emergent repairs starting with the removal of [...]

By | April 6th, 2015|Marine Services|Comments Off on Power Plant Intake Underwater Structure Repair

Mooring Cell Repairs

In the summer of 2012, UCC was contracted to perform turnkey mooring cell repairs for a large fossil fuel plant on the Ohio River. A team of topside and underwater welder fabricators repaired 12 mooring cells that were 16’ in diameter. The repairs ranged from small patch work to installing new [...]

By | April 6th, 2015|Marine Services|Comments Off on Mooring Cell Repairs

Fish Barrier Net Project

Preservation of Aquatic Life Installation of a fish barrier net for a large hydroelectric facility in the midwest to restrict the aquatic life from entering the generating turbines of the facility. UCC has installed and maintained the deepest and longest barrier nets in the country. Impingement & Entrainment Sevices (In [...]

By | April 6th, 2015|Marine Services|Comments Off on Fish Barrier Net Project

Drinking Water Sediment Removal

An eight-municipality Water Treatment Facility in North East USA required UCC’s Specialized Drinking Water Dive Services. Scope of work included tank floor cleaning, pipe repair, sediment removal and structural inspection. The work was performed within a nine million gallon underground storage tank utilizing decontamination protocol per American Water Works Association [...]

By | March 31st, 2015|Marine Services|Comments Off on Drinking Water Sediment Removal

Traveling Water Screens Replacement

Underwater Construction Corporation (UCC) successfully completed another Traveling Water Screen (TWS) project at a Southeast Nuclear Power Plant. UCC performed the removal and replacement of the six original TWS’s that were installed in the 1970’s. After removal the pits were cleaned and the old grout removed from under the screens. [...]

By | March 3rd, 2015|Marine Services|Comments Off on Traveling Water Screens Replacement

Nitrox & Mixed Gas Diving

Used on a variety of projects to increase stay times and enhance safety (Applicable to all industries) The plan called for divers to work at a depth of 90 feet.  Diving work at this depth can be conducted safely using surface supplied air, but time on the bottom is limited.  [...]

By | January 6th, 2015|Marine Services|Comments Off on Nitrox & Mixed Gas Diving

Pipeline Scour Remediation

UCC divers were utilized to place bagged sand/cement under and around an exposed 24 inch concrete coated steel pipeline then covering the area with 12 inch crushed rock to within less than 2 feet of the original sea bed elevation. UCC provided large marine equipment including a barge with a [...]

By | January 6th, 2015|Marine Services|Comments Off on Pipeline Scour Remediation

Concrete Restoration

Water Intake & Processing Facility with Structural Deterioration Underwater Concrete and Grout Placement (Water Utility – applicable to any industry with concrete water retaining structure) UCC recently performed a complicated repair project at facility serving over three million people consuming one billion gallons of water per day.  After years of immersion, [...]

By | January 5th, 2015|Marine Services|Comments Off on Concrete Restoration

Dam Spillway Gate Sill Plate Replacement

An underwater inspection was performed determining that a sill plate was deteriorated beyond repair and then confirmed by engineering review. Using hydraulic underwater cutting equipment the old sill plate and concrete was carefully removed. Concrete forms were fabricated and installed underwater allowing UCC to place new concrete. Installation consisted of [...]

By | January 4th, 2015|Marine Services|Comments Off on Dam Spillway Gate Sill Plate Replacement

Dam Spillway Apron Repair

Underwater inspections determined that 19 of 24 spillway block sections were subjected to years of erosion. UCC provided skilled divers and specialized underwater tooling to remove the damaged concrete. The substandard rebar was removed using an exothermic cutting torch and new rebar matting was installed as required by engineering specification. [...]

By | January 3rd, 2015|Marine Services|Comments Off on Dam Spillway Apron Repair