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Alpha Marine Installations

Washington States Leading Sales – Installation and Support of Helix Anchor and Seaflex Mooring Systems

What are Helix anchors?

 

Cost-effective and environmentally friendly marine mooring anchors.

Helix anchor mooring systems do not harm sea bed killing vital food chain vegetation as compared to conventional cement block moorings systems.

They are preferred in environmentally sensitive areas and have been recommended by state agencies and scuba-diving tour companies.

Alpha Marine Installations - Washington State Helix anchor sales, installation and service

Helix anchor system - Alpha Marine Installations

How do Helix anchors work?

Helix anchors derive their holding power from the seabed soils into which they are installed.

The square shaft Helix anchors are installed with the aid of hydraulic mechanisms that screw the anchor through resisting soils.

Helix anchors have been repeatedly tested by mother nature and proven to be an environmentally  safe and effective mooring system.

FAQ

Is a Helix mooring system strong?

The square shaft Helix anchors are installed with the aid of hydraulics to screw the anchor through resisting soils.

Helix anchors have been repeatedly tested and proven safe by Mother Nature and tugboats with load measuring equipment.

Does a Helix anchor work just for moorings?

Versatile Helix anchors are also being used to secure floating wave attenuators, submerged pipelines, intake/outfall pipelines, and a wide variety of aquaculture equipment.

What is a Helix anchor made from?

Our high-load marine anchor is built on a solid, square shaft measuring 1 ¾” on a side. It is protected with hot-dipped galvanizing, and the termination includes a 1 1/8” shackle which encircles the shaft and connects to the anchor rode.

Why are Helix anchors ocean friendly?

Traditional moorings generally consist of a multi-ton cement block and chain dropped onto the sea bed. As the tides shifts in and out, the chain is forced to drag the ocean floor in a 40′ to 70′ radius (depending on the scope). The effects are devastating to any sea life within the drag circle, leaving a dead zone footprint where the eel grass would normally flourish.

Has AMI installed many Helix Systems?

Our company has designed and built hundreds of marine installations from Southeast Oregon to Alaska. Our work has been featured in September/October 2008 issue of Marine Dock Age and April 2009 issue of Northwest Yachting. In addition, Alpha Marine Installations has appeared on King 5 news story by Gary Chitum Hold Your Anchor, Use The Buoy on April 29, 2010.

Are Helix mooring affordable?

Alpha Marine Installations works from a trailerable 24 ft. landing craft that is sufficient to haul all necessary equipment used to install both Helix and Seaflex products. Our technology simplifies logistics and eliminates the need for large vessels, cranes and other equipment.

Watch the Installation

Traditional moorings generally consist of a multi-ton cement block and chain dropped onto the sea bed. As the tides shifts in and out, the chain is forced to drag the ocean floor in a 40′ to 70′ radius. The effects are devastating to any sea life within the drag circle, leaving a dead zone footprint where the eel grass would normally flourish.

Sea Flex Helix dock system - Alpha Marine Installations

SEAFLEX Elastic Floating Dock System

The Seaflex Elastic Rode is a 40 year old Swedish product of single or multiple rubber cords which will elongate and retract with water depth changes and varying wind/wave loads. These rodes are primarily used to keep a constant tension between floating docks and bottom anchors in order to prevent lateral movement of floating docks and to absorb shock loading

Floating docks anchored by Helix anchors and Seaflex elastic rodes do not need piles or cable winches.

Helix anchor/rode combination can be effective in all ocean tides, moving rivers, and dam-controlled lakes for wave attenuators as well as marina docks.

AMI Services Include

  • Dive Surveys
  • Permitting
  • Moorage feilds (design and Installation)
  • Seaflex Systems (design and Installation)

All of our systems are designed with owner friendly maintenance.

For customers who prefer, we do offer full maintenance programs of YEARLY –  BI ANNUALLY and ON CALL

Tribal Salmon Net Pen - Squaxin Island, WA

Secured to the sea bed with 24 Helix anchors.

Year Round Mooring 50' vessel - Raft Island, WA

Secured to the sea bed with a Helix single-point mooring system.

East Bay Crew Dock - Willamette River, OR

Secured to the river bed with gravity anchors and Seaflex rodes

160' x 40' Golf Coarse H Dock - Holmes Harbor, WA

Secured to the sea bed with Helix anchors and Seaflex rodes.

150' x 150' Herring Pen - Fox Island, WA

Secured to the sea bed with Helix anchors and marine grade poly line.

Year Round Mooring 46' Cat. - Southworth, WA

Secured to the sea bed with a Helix single-point mooring system.

Year Round Mooring Floatlift - South Sound

Secured to the sea bed with a Helix single-point mooring system.

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