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  • Integrated dredging and reclamation solutions

  • Dredging
  • Dredging
  • Dredging
  • Dredging


HR Wallingford offers integrated dredging and reclamation solutions to support the development of new infrastructure such as ports, airports, waterfront developments and artificial islands. We help our clients design, procure and deliver their projects on schedule while achieving the best value for money.

Dredging project design

Over the past 60 years we have successfully completed over 500 dredging related projects worldwide. We understand the commercial, technical and environmental issues faced by dredging projects. Our wealth of practical experience allows us to identify risks early on and ensure that appropriate steps are taken to minimize these.

Capital and maintenance dredging

  • Feasibility and scoping studies
  • Site characterisation studies
  • Planning and supervision of site investigations
  • Geotechnical
  • Channel and side slope optimisation
  • Plant selection and project execution studies
  • Downtime assessments
  • Productivity and cost estimates
  • Plume modelling studies
  • Sedimentation modelling
  • Reclamation design
  • Independent third party review and auditing.

Contracting, procurement and claims

  • Contracting strategy
  • Preparation of tender documents
  • Tender evaluations and negotiations
  • Site supervision
  • Project management / contract administration
  • Claims assessment, negotiation and resolution.

Compliance with environmental legislation

  • Approvals and licensing
  • Monitoring design, procurement and management
  • Material testing and characterisation requirements
  • Dredge and environmental management plans
  • Environmental mitigation measures.

We also provide specialist advice on the dredging, transport and treatment of contaminated materials and offer services in other niche areas. We are highly experienced at dealing with claims and regularly act as expert witness in mediation and arbitration proceedings.

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Project owners, developers and regulators often require monitoring / survey works to help design projects and to assess potential changes and impacts arising. Such monitoring is commonly a condition to gaining licences and consents.
Projects have the potential for work to be managed and even halted based on measured impacts. Consequently, acquiring the right expert advice to ensure monitoring studies are correctly designed and implemented is essential.

HR Wallingford has a 60 year track record in the monitoring of marine environments.

We offer a complete range of advice in relation to physical (metocean, bathymetric and geophysical), chemical and biological monitoring.

Monitoring design

  • Targeted monitoring with clear, well founded objectives
  • Development of scope of work and technical specifications
  • Cost and schedule estimates
  • Based on international best practice.

Monitoring implementation

  • Evaluation of tenders for monitoring work
  • Assisting with contract negotiations
  • On-site client representation
  • Active management of project activities using monitoring results.

Data processing and interpretation

  • Expert data quality assurance and analysis
  • Data interrogation from both raw and processed data
  • Combined use of powerful in-house and industry standard processing and visualisation software
  • Well-organised, efficient and flexible data management.


Recent research work has focussed on:

  • Better design of marine monitoring studies
  • Data quality assurance best practice
  • Evaluation of suspended sediment concentration monitoring accuracy
  • Processing of acoustic backscatter to derive sediment concentration
  • Optical backscatter sensor performance.
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Site supervision and client representation

HR Wallingford’s multi-disciplinary team of dredging specialists has recently provided site supervision and represented the client on some of the world’s largest dredging projects, including DP World’s London Gateway Port development in the UK and the Ichthys, Gladstone and Wheatstone LNG projects in Australia.

Recent experience from major dredging projects clearly demonstrates that quality supervision of the dredging operation serves to facilitate the successful delivery of the works and reduce the level of risk (schedule and cost) that the client is exposed to. HR Wallingford has the capability to tailor teams to support the needs of our clients. Either head office or site-based our clients can count on an experienced and multidisciplinary expert to assist them during any stage of the dredging project lifecycle.

The key benefits of bringing HR Wallingford into your project management team include:

  • A real dredging expert on your side;
  • Risk mitigation and increased project’s success;
  • Prediction and mitigation of potential claims;
  • Effective stakeholder management;
  • Environmental compliance;
  • Extensive Head Office back up resources.

Supervision of dredging projects

  • Evaluation of tenders;
  • Advice on the contract terms and conditions;
  • Provision of on-site representation;
  • Audit dredging programme, cost and productivity;
  • Attend regular progress meetings;
  • Issues resolution and claim avoidance;
  • Client representation with stakeholders and regulators.

Supervision of monitoring programmes

  • Design of monitoring;
  • Writing of request for tender documents; 
  • Evaluation of tenders for monitoring work;
  • Contract negotiations;
  • On site client representation;
  • Assistance with data collection;
  • Expert data and report quality assurance and analysis;
  • Active management of project activities.
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Read more information at:

We won the <a href='http://www.hrwallingford.com/news/hr-wallingford-wins-innovative-services-to-dredging-award'>2016 Innovative Services to Dredging Award</a> for our work on sound in the marine environment

We won the 2016 Innovative Services to Dredging Award for our work on sound in the marine environment


Mark Lee

Mark Lee

Group manager, Dredging

+44 (0)1491 822385

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