Coastal engineering, from coast to coast.

The discipline of coastal engineering has been a key pillar at Magryn & Associates since inception and, today, we enjoy a strong professional relationship with councils, government departments and the private sector aross Australia, delivering on projects such as:

Boat ramps and boat launching facilities

for recreational and commercial vessels, where we conceptualise facilities on the coast and in rivers and estuaries and attend to the detailed design documentation. The designs generally comply with SABFAC guidelines to enable clients to apply for funding grants from the SA Government.

Rock seawalls

These critical coastal structures offer protection of coastline and structures from erosion and/or wave attack.

Breakwater design

Breakwaters often accompany engineering designs for boat ramps or marinas, and protect moored or landing vessels.

Jetty design

We design coastal engineered Jettys for recreational or commercial use, employing either epoxy paint treated steel or composite or recycled plastics. Furthermore, the design may incorporate a fender design to allow vessels, from small fishing boats to large bulk carries of 100,000 DWT or more, to berth.

Structure inspection and reporting

Our coastal engineering inspections involves above and below the water line inspections of marine structures, assessment of condition and reporting, which may include recommended remedial works. Underwater inspection is either undertaken by free diving or by professional dive teams using hookah.

Coastal erosion and flooding assessment

Our engineering services include assessment for coastal sites to determine:

  • historical erosion
  • ongoing coastal erosion
  • susceptibility for flooding due to elevated water levels from:
  • rising sea level
  • storm surge
  • wave effects

The subsequent reports may include:

  • recommendation of coastal erosion buffer zones
  • design of coastal protection against erosion
  • specification of building levels to avoid flooding

Coastal Process Investigation

This involves the analysis of the coastal environment for effects such as sand transport, currents, erosion and accretion of beaches and usually employs one of more of the following:

  • hydrographic survey
  • sediment sampling
  • current measurement
  • aerial photography, both historical and current
  • wave measurement

These investigations may be undertaken, for example, to determine the effects a new industrial or residential development will have on a stretch of coastline.

Marina Design

Coastal engineering design for marines is undertaken in accordance with the Australian Standard AS3962, and covers both the conceptual and detailed design phases for boat mooring at coastal locations and takes into account:

  • depth of water and the need for dredging
  • wave climate and penetration
  • pontoon design
  • facilities
  • vehicle access and parking
  • boat launching
  • other effects, such as seaweed ingress and adjacent erosion

Offshore Structures

Our Coastal engineering design services extends to offshore navigation aides to shipping, pipe outfalls or intakes or vessel anchor systems. Designed to handle the required applied loads and local environmental conditions, the designs comply with Australian Standard AS4997 and other relevant standards.

Hydrographic Surveys

Underwater surveys of the seabed are often undertaken in conjunction with a land survey on the shore.  Magryn & Associates brings a wealth of experience to the marine survey discipline, with a licenced surveyor and a purpose-modified jet-ski on hand to tackle all required seabed surveys.

Marine investigations

These maybe required for particular aspects of coastal projects.  The Magryn team has extensive experience across:

  • marine sediment sampling
  • salinity measurement
  • ocean temperature measurement’
  • side scan sonar investigation of the seabed and profiling

Design of stormwater outfalls on beaches

This is a particularly complicated field thanks largely to:

  • varying ocean water levels
  • sand transport along the coast
  • wave attack and erosion onto the outfall structure
  • erosion of sand by water exiting from the outfall
  • trapping of gross pollutants from the outfall
  • prevention of vermin access to outfall pipework

Design of vessel waste pump-out stations

On the coast and in riverine systems vessel waste pump-out stations is another of our specialities and ensures that the pumping out and storage or disposal of waste from a vessel is carried out in an environmentally acceptable manner. The design of these stations includes:

  • jetty structure design
  • fendering
  • pump selection
  • storage/disposal selection

Find Out More

If your organisation has a coastal engineering requirement we invite you contact us to discuss your requirements. You can reach our office on (08) 8295 8677. We are passionate about coastal engineering, and so would enjoy discussing your requirements.  Additional contact details are here.