Coastal Engineering

24 March 2026
Vertical Seawalls vs Sloped Revetments: Understanding the Trade-offs
When a coastal asset faces erosion, inundation, or wave attack, the instinct to “build a wall” is understandable.
26 February 2026
Nuances of Breakwater Design
Breakwaters play a critical role in enabling safe marina access and protecting coastal infrastructure.
15 October 2025
Designing Future-Proof Beach Access for Australia’s Changing Coastlines
Coastal communities across Australia are facing growing challenges from storm events, coastal erosion, and long-term shoreline change. Ensuring safe and sustainable access to the beach.
10 September 2025
Celebrating Team Achievements: Freya Barr’s First Published Research Paper
At Magryn, we’re passionate about supporting innovation and the people who drive it.
3 September 2025
Bastion Point Breakwater Remediation
We’re pleased to share that the upgrade of the Bastion Point breakwater in Mallacoota, Victoria is now complete, and it’s working exactly as intended.
23 July 2025
Hybrid Thinking for Coastal Resilience: Industry-Led PhD Research Launches in South Australia
Magryn is proud to announce a new research collaboration with Flinders University, funded under Round 5 of the Australian Government’s National Industry PhD Program.
25 June 2025
Community at the Heart of Coastal Adaptation: Tumby Bay Project Update
Magryn’s coastal engineering team, in collaboration with Sproutt Landscape Architects and Port & Coastal Solutions, recently supported the community engagement process for the future of Tumby Bay’s foreshore.
12 March 2025
GFRP reinforced concrete for coastal structures
Premature corrosion of reinforcement is a significant issue in coastal environments due to the chlorides present in seawater. As these chlorides diffuse through the concrete, this leads to the corrosion (rusting) of the reinforcement.
10 January 2025
The Role of Groynes in Coastal Management: A Case Study on Sandbag Groynes
Groynes are a common tool in coastal management, serving as vital structures to retain sand along beaches, maintain beach width, and protect against erosion.
7 January 2025
Revitalising Cowell: Magryn Engineering's Role in the $11 Million Foreshore Project
The $11 million Cowell Foreshore and Aquatic Park development, highlighted in a recent ABC News article, has revitalised the town's economy and showcased the power of thoughtful engineering and design.
26 September 2024
Understanding Coastal Wave Behaviour in Marine Infrastructure Design
When designing marine infrastructure such as jetties, breakwaters, and pontoons, it's crucial to understand the behaviour of waves and their interaction with structures.
7 September 2024
Wave Overtopping and the Design of Coastal Defence Structures
Designing coastal defence structures in populated areas and adjacent roadways requires careful consideration of various coastal processes to ensure long term effectiveness and safety.
18 June 2024
Coorong Dune Erosion Sparks Warning for Coastal Communities
Recent research highlighted in an ABC News article has brought attention to the dramatic changes along the Coorong's dunes, emphasising the urgent need for careful planning and climate change considerations.
10 October 2023
Coastal Erosion
What is Coastal Adaptation? Coastal zones face increasing risk of inundation and erosion as a result of coastal hazards such as sea level rise and increased wind and wave climates.
10 October 2023
How can I protect my beachfront property from coastal erosion?
Coastal erosion is a concern for beach houses because it can threaten their stability and lead to property damage or loss.
10 October 2023
Why does my new development require a coastal hazard risk assessment?
In order to obtain development approval for new developments that are on or near the coast in South Australia, Coastal Protection Board approval is required.
14 July 2022
Removal of Old Granite Island Causeway Piles
As the new causeway out to Granite Island at Victor Harbour is now completed, the old causeway needed to be disassembled and removed. Ecospec Australia have been awarded the contract to disassemble and remove the old causeway.
28 June 2021
Whyalla Jetty
This group on the Whyalla jetty at the final defects inspection 25 June 2021 holding awards that this Jetty has already won.
3 June 2021
Port Germein jetty closed after Marine Assessment Report
The Port Germein Jetty has been partially closed after Magryn Engineers found significant deterioration in underwater pylons.
9 February 2021
Meningie Jetty, Vessel Mooring Facility
Magryn have been engaged by Coorong Council to review the design and installation of the piling and framing associated with the new vessel mooring facility located at the outer end of the main Meningie Jetty.
3 November 2020
Bamera Jetty Inspection
Two of our engineers have recently undertaken an inspection (above and below water) of the Bamera jetty in Lake Bonney, for the Berri Barmera Council.
25 July 2020
COASTAL EROSION ON NSW CENTRAL COAST
Could it happen in South Australia? The severe beach erosion of the last few days on the Central Coast of NSW was well publicised.
30 June 2020
Cowell Marina
These photos show the current stage of a marine project at the Cowell Marina designed by Magryn. Currently, the marina basin is being excavated to a suitable depth and constructing breakwaters around it, then rock armouring them.
21 May 2020
Whyalla Jetty nearing completion
Stunning drone photos of the Whyalla Jetty project nearing completion provided by SA Drone Services.
29 November 2019
Port Augusta Heritage Wharf Assessment
The historical timber main wharf at Pt Augusta was built in 1870 and has seen irregular and ad hoc maintenance over the years.
12 April 2019
Construction of Emu Bay Boat ramp
Magryn has 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.
1 November 2018
The new Whyalla Jetty
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.