Adverse physical conditions: Legal development and changes in risk profiles

In the past decade, there have been noteworthy advances in case law with respect to adverse physical conditions as well as the development and use of digital ground models that have become more widespread. This article looks at the development and changes in risk profiles that may result due to these two developments.

The Smartsediment tool: a QGIS plug-in for evaluating ecosystems services

Managing sediments, especially from dredging, is important for the management of estuaries and coastal areas. When implemented in the right way, a sediment management strategy can be qualified as a nature-based solution as it uses the physical processes of erosion and sedimentation to create added value. There is a need for an evaluation of sediment strategies and the habitats that are created for a wider range of objectives than only biodiversity and nature conservation. The concept of ecosystem services provides this broader framework.

Dredging for Sustainable Infrastructure

The book Dredging for Sustainable Infrastructure gives state-of-the-art guidance on how to design, implement and manage a water infrastructure project with a dredging component to project owners, regulators, consultants, designers and contractors.

Underwater Surveys

“Facts About Underwater Surveys” describes why surveys are crucial to a well-executed dredging project and the technologies and instruments being used.

Surveying

Surveying of the subsea and seafloor conditions of dredging areas are mapped at the start of and at intervals during a project for comparison and control.

Surveying and Monitoring

Surveying and monitoring are two separate processes, both of which have an essential role in dredging operations.

Aerial Survey Techniques Applied for Stockpile Progress Measurements

Multicopters, unmanned aerial surveyors, can fly and take pictures in difficult-to-reach or potentially dangerous areas, improving the speed and safety of acquiring data.

Dredging Phase I of the Non-Time Critical Removal Action in the Lower Passaic River

Removing sediments with high dioxin concentrations requires extra care, with modern surveying and tracking techniques from beginning to end, from dredging to a high-tech dewatering process to the final disposal.