Alpha Marine Installations
Washington States Leading Sales – Installation and Support of Helix Anchor and Hazelett Elastic 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.


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.

HAZELETT Elastic Floating Dock System
The Hazelett Marine elastic rodes is a proprietary advanced elastomer technology that is proven and tested with 35+ years of experience. The Elastic Rodes comes in four sizes and two stiffness levels. It is used for a number of applications including swing moorings, docks/pontoons, wave attenuators, navigation buoys and floating solar arrays. When integrated into a mooring line, the Hazelett Marine Elastic Rodes provides unparalleled stability, constant tension and extends the design life of the floating structure. Tests conducted by a third party accredited testing facility conclude that a single Hazelett Marine Elastic Rode will withstand over 20kn (4,496 lbs) of force. The elastic can repeatedly elongate over 200% and return to original length.
The Hazelett Marine elastic rodes floats above the sea bed with a minimal environmental footprint, reduces point loads, reduces wind loads, increases mooring density, and provides a more gentle dock motion.
AMI Services Include
- Dive Surveys
- Permitting
- Moorage feilds (design and Installation)
- Hazelett 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

