Replacement of Trash Rack at the West Outlet at Barr Lake


Project Description:  Marine Diving Solutions provided the demolition of existing hoods and trash racks, and installations of hybrid gate cylinder, new grout cap, vertical trash rack guides, support beam marks, vertical trash rack, horizontal trash rack and hoods at Barr Lake in Brighton, Colorado.

Services Included:
  • Commercial diving of reservoir
  • Removal and installation of trash racks and hoods
  • Dredging work at the base of the intake prior to the vertical trash rack demolition
  •  Work performed on floating platform and underwater
  •  Installation of hybrid gate cylinder and instrument cabling, new grout cap for the left intake structure wingwall, new vertical trash rack and components, and new horizontal trash racks, hoods and supports
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Repair Hydraulic Cylinders and Position Indicators at Colebrook River Lake, Connecticut for the USACE - January 2020



Project Summary: 
Marine Diving Solutions provided the removal of 6 hydraulic cylinders, repairs, and re-installation for the USACE. Additional services included oil testing and filtration.

Services Included:

• ROV inspection underwater

• Bulkhead installation and removal

• Removal and reinstallation of six flanged gate cylinders

- 200’ vertical lift from gate chamber to bridge deck.

- Required to be disassembled prior to lifting.

- 26.5” OD cylinder barrel, 113” long, appx. 5000 lbs each

- 15’4” long, 5’OD cylinder ram, appx. 1000 lbs each

- All pipe barrels and cylinder rams had to be rotated from vertical to horizontal after lifting, for removal

• Oil filtration and testing

• Working in suspended and fall restriction area

• Modifications including fabrication and welding to the hydraulic operating system piping. Approximately 100’ of 1.25” Sched 80 pipe.

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Wolford Reservoir Improvements for Colorado River Water Conservation District - July 2019



Project Summary: 
Marine Diving Solutions performed commercial diving services at Wolford Dam to remove the existing main gate and install the new owner supplied gate. The trash rack was also removed, coated and re-installed.

Services Included:

• Commercial diving of reservoir

• Barge supply and use

• High altitude diving operations

• Vessel Operations

• Deep dives that were at 170’ after altitude correction

• Removal and installation of gate

• Trash rack rehabilitation

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Investigation and Repair of Outlet Control Valves at Juniata Reservoir - May 2019



Project Description:
Commercial diving services for investigation and repair of outlet control valves

Services Included:

• Commercial diving at Juniata Reservoir up to 100’ deep after altitude correction

• Trash rack removal

• Underwater ultrathermic cutting (Broco)

• Investigation for repairs or replacement of valves and hydraulic cylinders

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Guajataca Lake Stem replacement, Puerto Rico - September 2018


Project description: Marine Diving Solutions is demoing and replacing a gate stem used to regulate the water level in Guajataca Lake, Puerto Rico after it was affected by the hurricanes in recent years.

Services Included:
  • Marine Diving Solutions removed the stem operator and old stem that had been damaged previously.
  • MDS provided demolition and replacement of the gate stem to support two winches used to remove the 3 ½ inch stem measuring over 90 feet.
       
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Steamboat Lake Gate Replacement - Oct 2018


Project description: Marine Diving Solutions provided commercial dive services including diving off a barge in depths up to 130 feet to remove and replace a 96 inch control gate that had been previously leaking at Steamboat Lake in Craig, CO

Services include:
  • Diving to unbolt the 96 inch control gate using a Hydraulic bolt tensioner.
  • Then MDS is used a barge and crane to safely remove the gate out of water.
  • A blind flange was installed until the new gate arrived and was installed.
             
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Pueblo Water Tank Replacement - September 2018


Project Description: Marine Diving Solutions provided construction services to include the removal and replacement of two 120-foot roofs off potable water tanks and replacing the old steel roofs with new lightweight aluminum roofs.

Services Include:
  • Welding over 1,200 feet of roof supports.
  • Fabricating all new ladders, safety platforms and safety climb systems.
  • Utilizing multiple cranes and critical picks to safely remove the old roofs.
  • Welding, plasma cutting and rigging were key components needed to complete this large project. 
       
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Town of Naturita, Colorado Water Tank Exterior Recoat and Vent Upgrade - July 2016


Project Description: Marine Diving Solutions provided an exterior blast and recoat, replacement of vent with a larger frost proof design and installation of a wire rope fall arrest system.

Services Included:
  • Fabrication and installation of a 24” frost proof vent
  • Installation of a wire rope fall arrest system
  • Blast and recoat of exterior of tank to a SSPC-SP6
     
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Town of Loving, New Mexico Water Tower Overflow Upgrades


February 2016

Project Description: Marine Diving Solutions provided fabrication, installation, and rehabilitation services for a 200KG water tower.

Services included:
  • Shop prepping of 140’ of 12” schedule 40 pipe with coating
  • Installation of 140’ of 12” pipe in the field.
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Town of Simla, Colorado Tank Rehabilitations


May 2016

Project Description: Marine Diving Solutions provided fabrication, installation, and replacement services for 3 water tanks ranging from 44KG to 250KG.

Services included:
  • Concrete foundation repairs
  • Replacement of outdated barn hatches with 24” AWWA compliant type
  • Installation of a frost proof vents
  • Replacement of level indicators
  • Lowering overflows to ground level on each of the tanks

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Board of Water Works of Pueblo Colorado La Vista Tanks Roof Drainage Improvements


May 2015

Project description: Marine Diving Solutions provided drainage, ventilation and safety improvements to two 3MG water tanks.

Services Included:
  • Fabrication and installation of a wire safety fall arrest systems
  • Fabrication and installation of frost proof vents
  • Installation of vents
  • Fabrication of numerous custom aluminum components
  • Installation of upgraded overflows
  • 50% of all work was completed using man lifts and suspended activities
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Town of Hugo, Colorado Water Tower Rehabilitation


June 2016

Project Description: Marine Diving Solutions provided fabrication, installation, and rehabilitation services for a 100KG water tower.

Services included:
  • Weld repairs to the wall panel to roof panels to seal gap to meet AWWA code
  • Replacement of outdated barn hatch with a 24” AWWA compliant one
  • Installation of a frost proof vent
 
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Heron, NM Blast and Re-coat


April 2015

Project Description: Marine Diving Solutions provided an interior and exterior blast and recoat to a 150KG water tank.

Services included:
  • Interior blast and recoat to an SSPC SP10
  • Exterior blast and recoat to an SSPC SP6
  • Installation of a frost proof vent.
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Department of Veteran Affairs Water Tower Rehabilitation


October 2014

Project Description: Marine Diving Solutions provided fabrication, installation, and removal services for a 100KG water tower from the 1940’s.

Services included:
  • Fabrication and installation of a ladder for the exterior of the water tank with a wire safety fall arrest systems
  • Fabrication and installation of a ladder for the interior of the water tank with a wire safety fall arrest systems
  • Installation of two 30” and one 24” manways
  • Repair of cracks and spalling in the structural foundation of the tank
  • Welding of base anchor bolts and nuts
  • Replacement of roof access hatch and vent
  • Raising of 6” inlet and 8” outlet pipes 150’ to the interior of the water tank
  • Sealing top of riser to tank to make wet riser into a dry riser
  • Installation of a 5” overflow 150’ with splash pad and security flapper valve
  • Raising of handrail to meet current OSHA compliance
  • Welding of the circumference of the post head to shell connections
  • Installing a handrail at the top of the tank for safety of personnel
  • Replacing of access hatch for entry into the tank from the top of the tank
  • 75% of all work was completed using man lifts and suspended activities
     
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Town of Red Cliff, Colorado Water Tank Insulation Replacement and Upgrades


October 2014

Project Description: Marine Diving Solutions provided fabrication, installation, and removal services for a 250KG water tank from the 1960’s.

Services included:
  • Fabrication and installation of a ladder on the exterior of the water tank with a wire rope safety fall arrest systems
  • Removal of failing foam
  • Installation of Foamglass foam insulation
  • Raising roof panels back into place that had failed due to severe snow fall
  • Installation of custom supports for reinforcing roof panels
  • Installation of a 3’ wide X 15’ long platform / catwalk on top of the tank
  • Removal and replacement of existing vent with a new 24” frost proof vent with extended neck for severe winter months
  • Installation of aluminum jacketing to protect Foamglass foam insulation
  • Cleaning and inspection to the interior of the water tank
     
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Swans Nest Metro District Ice Protection Upgrades


September 2014

Project Description: Marine Diving Solutions provided fabrication, installation, and removal services for a 300KG water tank.

Services included:
  • Installation of electrical lines to provide power to a water tank that was approximately 1 mile up a mountain from the closest power source
  • Coating repairs to the inside of the water tank at water level due to ice damage
  • Installation of a PAX water mixer to prevent ice damage.
     
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