Water Injection Dredging in US Ports
Brought to you by the COPRI Waterways Committee
Chair - Dennis Lambert, P.E., D.NE, D.PE, D.WRE, F.ASCE
Water Injection Dredging (WID) is an innovative hydrodynamic dredging technique that is cost-effective, low-impact and environmentally sound. The WID injects large volumes of water at low pressure into the sediment layer. The fluidized sediment is then carried with the water current horizontally along the waterway as a density current. The WID technique has particularly gained popularity for maintenance dredging in European ports with continuous shoaling and siltation of access channels and berths.
This WID process occurs with a minimum of disturbance to the equilibrium of the ecosystem. In this way, instead of mechanical transportation, natural forces (currents, tides, and gravity) facilitate the sediment transport, making WID under certain conditions a very cost-efficient dredging technique. Because a WID is highly maneuverable and because it does not dig into or excavate sediment as do traditional dredges, but instead applies water through jets to dilute the sediment layer, it can operate in places that other types of equipment cannot reach, for instance, near jetties and underneath moored vessels. Additionally, the WID poses less risk of damaging underwater infrastructures, such as cables and pipelines, bulkheads, lock aprons, and dry-docks compared to traditional hydraulic and mechanical dredges.
Joe Wagner, P.E., D.NE, BCEE, M.ASCE
Senior Dredging Engineer, HDR
Mr. Wagner earned a Master of Engineering in Coastal and Ocean Engineering from Texas A&M University with an emphasis on dredging engineering. Since 2001, Mr. Wagner has worked on various dredging engineering projects, including developing long-range dredged material management plans; designing upland dredged material containment facilities; creating dredging management plans, economic evaluations, development of plans and specifications, evaluating alternate dredging technologies; acquiring Sovereign Submerged Land leases; and assisting with site inspections and assessments of nearly 60 dredged material management facilities.
Mr. Wagner has also served as a project manager responsible for marine and freshwater projects including waterfront design, shoreline stabilization, and wharf and dockage design. Mr. Wagner has coordinated with government representatives and regulatory agencies in property acquisition, planning, permitting, designing, and construction administration of numerous dredged material management areas and dredging projects in Florida, Southeastern United States, South America, and the Caribbean.
. ASCE uses your information to manage your requests or inquiries and to support our delivery of products and services to you.
Stay up-to-date with ASCE & the Civil Engineering Community
Sign up for ASCE’s email list to receive valuable information direct to your inbox such as publications, conference invitations, continuing education opportunities, and much more. You can select the types of emails you wish to receive or unsubscribe at any time through our Email Preference Center.
Photo and Video Recording of Sessions
ASCE may take photographs and/or make audio and visual recordings of the event, and participants grant to ASCE the absolute right and permission to use any such photographs or recordings that may be taken during the event for any purpose in its sole discretion.
Photos, video or audio recording(s) of any educational session for commercial use, is strictly prohibited without prior written permission from both ASCE and the session presenter(s).