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4 Roddinglaw Business Pk, Roddinglaw Rd, Edinburgh, EH12 9DB U.K.
Marine
PORT & DREDGING
  • Dredge spoil ground assessment for existing sites and characterising new sites
  • Quantifying spoil ground capacity and extending capacity and lifespan
  • Optimisation of dredging and/or disposal options
  • Site selection studies for sand aggregate/sand borrowing sites and dredge disposal sites
  • Reduction of capital and maintenance dredging requirements
  • Identifying the source of sedimentation, fluid mud and transport pathways and processes
  • Monitoring alternative dredging systems (Jetsed, agitation etc.)
  • Beneficial use and working with nature
  • Mudflat and salt-marsh rejuvenation
  • Impact assessments of capital dredge schemes on environmentally sensitive sites
  • Dredge and suspended sediment plume monitoring
  • Identifying zones of impact and control sites
  • Efficiency testing of silt screens
  • Dredge plant optimisation and evaluation of dredging efficiency and stripping losses
  • Assessment of suspended solids from natural processes, dredge plant overflow and prop-wash
  • Evaluation of sediment dispersal due to re-handling and disturbance
  • Model calibration, validation and ground-truthing
Dredging off the Queensland
MARINE SURVEY
  • Hydrographic, geophysics and metocean survey
  • Turbidity and water quality monitoring
  • Sediment and benthic sampling
  • Seabed characterisation
  • Cable routes, trenching and pipeline assessments
  • Pipeline leak detection
  • Marine aggregate and sand borrowing: overflow plume dispersal and seabed disturbance monitoring
  • Erosion and sedimentation monitoring at marine archaeological sites
  • Marine conservation assessments
  • Assessment of major infrastructure projects in terms of evaluating environmental impact, sustainability and viability within acceptable legislative and environmental frameworks
CONTAMINATED SEDIMENT
  • Identifying source(s) of contaminants
  • Risk of disturbance and fate of contaminants prior to clean-up
  • Quantifying stripping losses during dredging and dispersal during clean-up
  • Assessment of capping efficiency, retention in borrow pits and CAD cells
  • Monitoring re-contamination of cleaned area, capping efficiency and integrity of capped sediment
  • Contaminated sediment dispersal, transport and fate studies
  • Sedimentation rates and monitoring natural recovery
  • Sediment and polluted sediment tracing within and exiting CDFs
  • Evaluation of Total Maximum Daily Load (TMDL) for pollutants and contaminants in water
CONTAMINATED SEDIMENT
COASTAL PROTECTION, BEACH NOURISHMENT & FLOOD DEFENCE
  • Assessment of coastal protection, recession lines and impact of sea-level rise
  • Longshore and cross-shore silt and sand transport processes
  • Identifying null zones and ebb/flood shoal dynamics in inlets
  • Offshore-onshore and regional sediment management assessments
  • Beach nourishment studies, quantifying nett ‘gain’ or ‘loss’ and understanding system to reduce rate
  • Fate of nourished sand and possible recovery and impact on adjacent sensitive sites
  • Optimum placement method and use and ‘loss’ of fine fractions
  • Sand by-pass and back-pass evaluation
  • Identifying sand and silt traps for sustainable beach nourishment
  • Coastal defence: rejuvenation of mudflats and sand shoals through recharge and sand engines
  • Aggregate dredging/sand borrowing assessments
COSTAL PROTECTION