Construction of Emu Bay Boat ramp

April 12, 2019
Filed under: Coastal Engineering — Magryn @ 2:01 pm

Magryn Engineering have been involved with the Emu Bay Boat ramp, on the northern coast of Kangaroo Island since 1999.

We have undertaken several upgrade designs to the original ramp which unfortunately was very limited and inadequate.

Emu Bay Boat Ramp from the local Jetty

Kangaroo Island Council and Team Civil are now involved in the rebuilding of the ramp to provide a better facility including:

  • A triple lane boat ramp,
  • Two stepped jetties from FRP Construction,
  • Better roadway access
  • Formalised rigging/de-rigging areas,
  • Rock armour protection around the ramp area.

The ramp is located in an exposed location, and floating pontoons were not feasible for this site.

Civil Engineering Companies Adelaide

December 24, 2018
Filed under: Civil Engineering Companies Adelaide — Magryn @ 11:17 am

When it comes to Civil Engineering Companies Adelaide, Magryn & Associates are world class!

Actively consulting in Civil, Structural and Mining Engineering and specialists in Coastal and Marine work.

Magryn and Associates is a medium sized engineering consultancy firm. With a focus on exceptional engineering designs, all carried out in accordance with good practice and the relevant Australian Standards, we have experienced year-on-year, consistent and sustainable growth.

Some of our specialties are

  • Coastal Marine Engineering
  • Stormwater Design
  • Retaining Walls
  • Hardstand area designs like Roadways, Pavement and Elevated Boardwalks.

Stormwater Design

There are many types of designs for stormwater systems and these vary depending on what you are trying to achieve.

Some of our storm water management designs have included:

  • Water collection and disposal
  • Water retention tanks for reuse onsite
  • Detention tanks for ponds and other slow release areas
  • V-notch flow measurement weirs for rivers and streams
  • Pipe systems, pump systems and
  • reatment systems for removal of pollutants.

Hardstand Area Designs

This is about roadway and pavement systems that include factors like type of traffic load, including minimal, high and general roads or highway conditions. Other factors have to be considered too, like stormwater runoff control, the surfaces used and ground conditions on which it is to be constructed, ie poor ground or fill areas.

Designs we have undertaken have included reinforced concrete, rubble, concrete block pavers, asphalt and two coat bitumen spray seal.

Retaining Walls

With height capabilities of up to nine metres, each retaining site has to be engineered according to its particular conditions and needs.

We take into account things like the presence of groundwater, underlying shallow rock, fill or other challenges. We have a number of engineering design options available like:

  • steel posts
  • concrete sleepers
  • crib walls
  • ground anchors for stabilisation
  • masonry walls
  • reinforced concrete and
  • reinforced masonry walls.

Elevated Boardwalks

Elevated boardwalks are precast concrete pieces that are used for trails, greenways (wetlands), observation piers and pedestrian bridge projects.

Unlike their wooden counterparts, concrete boardwalks require minimal if any maintenance. Using either steel reinforced concrete or glass fibre reinforced plastic (GFRP) reinforced concrete, elevated boardwalks are suitable for either pedestrian or vehicular traffic.

The GFRP sections are lighter due to a reduced concrete cover and do not rust.

Problem Solving

Problems can occur with old and new buildings. These are often challenging, unusual and sometimes unique. These can happen in just about any way, shape and form, but are normally found in the following areas…

  • Flooding, through the roof and/or at ground level
  • Dampness in other forms and problems
  • Ageing balconies, weathered or rotted
  • Balustrades that have weakened
  • Broken or deflected roof structures
  • Structural designs to match or compliment the architectural style or details

We have extensive engineering knowledge and practical experience and tackle each problem individually. Magryn Engineering will investigate and discover the cause, then engineer a robust and enduring solution tailored to the specific problem.

If the customer requires it, we can also engage the required contractors and oversee their work, thereby ensuring the problem is completely resolved.

Magryn and Associates

Our staff of thirteen are comprised of eight qualified engineers who are supported by technical officers, drafters and administrative officers.

We are small, which allows us to deliver personalised service and yet, able to tackle complex engineering projects both at home and abroad.

The new Whyalla Jetty

November 1, 2018
Filed under: Coastal Engineering — Tags: , — Peter Cornish @ 11:44 am

The existing public access fishing jetty which extends out from the breakwater at the marina at the eastern end of the town beach is in very poor condition and is unsafe for public use.

A decision has been made by the City Council of Whyalla to replace the jetty with a new structure, to act as the centrepiece for the revitalisation of Whyalla.

The construction of the jetty is to be a partnership between the City Council of Whyalla, the South Australian Government, and the new owners of the Whyalla Steelworks, GFG Alliance.

Magryn is delighted to be appointed design engineers for the project and to be involved in the upcoming construction.

The jetty is to be a steel substructure, with precast concrete decking over. The concrete is to be reinforced with glass fibre reinforced plastic (GFRP) reinforcement to ensure the structure is safe from “concrete cancer” in the future.”

Coast engineering project Whyalla

 Rendered images provided by our client

Coast engineering project Whyalla Jetty

Rendered images provided by our client

Proposed Coast engineering project Whyalla Jetty

Rendered images provided by our client


Coastal Engineering – Whyalla Jetty

January 31, 2018
Filed under: Coastal Engineering — Tags: , — Magryn @ 10:53 am

Whyalla Jetty Project

We are undertaking a design for a new fishing jetty at Whyalla, after the existing jetty was closed last year due to damage and degradation. Part of our scope of works is to present three options for the new jetty construction, which will be:

  • Steel piles and superstructure, as Whyalla is a steel producing town. These are to be protected with a marine grade paint system.
  • Concrete piles and superstructure, but using high strength marine grade concrete and glass fibre reinforced plastic (GFRP) reinforcement in lieu of normal steel reinforcement. This GFRP is stronger than steel and will not rust, negating the “concrete cancer” problem common in concrete structures in the marine environment. This GFRP is now manufactured in Australia to world-class standard and offers a leading edge of technology.
  • Steel piles with composite fibre beams and decking. These are beams and decking manufactured from fibreglass and will not rust. This provides a solution that largely avoids rusting of steel or concrete cancer and should have a much greater maintenance free lifespan. Again, these products are Australian manufactured.

This work is currently in the site investigation and preliminary design phase.

Whyalla Jetty - Current State

Whyalla Jetty – Current State

Whyalla Jetty - Current State

Whyalla Jetty – Current State

Whyalla Jetty - Current State

Whyalla Jetty – Current State

Whyalla Jetty - Current State

Whyalla Jetty – Current State

Coastal Engineering – Seawall Projects

Filed under: Coastal Engineering — Magryn @ 9:45 am

Coastal Engineering – Seawall Projects

Recently we have quite a few new and large coastal engineering projects at Magryn.

These include:

Rock Seawalls – Point Turton, Yorke Peninsula in South Australia

We have two at Point Turton on Yorke Peninsula, one being 400m long.

seawall port turton

Prior to seawall works commencing

During seawall construction

During seawall construction

Moonta Bay Seawall Installations

Magryn Engineering have also designed and supervised installation of several seawalls at Moonta Bay, one being 85m long.

Seawall Installation at Moonta Bay, Yorke Peninsula, South Australia

Seawall Installation at Moonta Bay, Yorke Peninsula, South Australia


All of these are rock revetment seawalls are designed to resist the local wave action on unstable and eroding cliffs, and prevent further erosion, protecting buildings, housing and infrastructure. All the walls are site-specific designs for the conditions at that site.

There was an article on the Yorke Peninsula Country Times Newspaper 17 January, 2018 on the Pt Turton seawall and in the same paper on 24 October, 2017 and 17 October, 2017 for the Moonta Bay seawall.