WODA Reservoir Dredging Working Group

Progress update 01-10-2021

• Our sincere condolences to the families of Mr. Timothy L. Welp. His pass away is a big loss to the WODA Reservoir Dredging Working Group.

WODA Reservoir Dredging Working Group (China Area) Symposium held on 18-09-2021

On Sep. 18th, the Reservoir Dredging Symposium was held in Shanghai, in the campus of Engineering Research Center of Dredging. Working group members from China, together with 20 invited (by ChiDA) experts on the topic, gathered together, for the first time, face-to-face since the pandemic breakout, to discuss the sedimentation problem in reservoirs.

Dr. Xiuhan Chen first introduced the progress and focus of the WG, and then Dr. Huiqun Cao (Changjiang Institute of Science) introduced the survey work on the sediments near the Three Gorges Dam. Shuai Jiang (WG member) presented the dredging projects in several small reservoirs in the southwest of China. The symposium then focused on the outlines of WODA Reservoir Dredging Guideline. Writing tasks were distributed among the members.

A great news from the symposium: Five new members joined the WODA ResDred WG via the recommendation of ChiDA (China Dredging Association). We warmly welcome the following five new members from EADA.

 

 

 

 

 

WODA Reservoir Dredging Working Group Full Group Progress Meeting held on 30-09-2021

A full group progress meeting was held on Sep. 30th. On the meeting it is announced that Dr. David Middlemiss, will work as the secretary for Subgroup 3. Each subgroup has provided their updates for the recent four months work. All the writing tasks have been assigned. The plan for the coming period is: by Oct. 31st, all the members should submit what have already been accomplished. Polite and Xiuhan will check the consistency and overlap among the contents. Discussion will be held with all the subgroup leaders and secretaries, to form a logical and well-organized outline.

Another important agenda of the meeting was the presentation given by Dr. Nikolaos Efthymiou, who is an expert managing the global sediment management study for storage reservoirs and RoR hydropower plants which runs under the Hydropower Development Facility of the World Bank. He introduced the latest development on the sediment management software RESCON 2 (REServoir CONservation). The next step would be members of our working group try with the model and provide some feedback's.

 

 

Progress update 03-05-2021

During the past half year, the WODA Reservoir Dredging Working Group (ResDred WG) has made steady progresses. Via a series of discussions, the three subgroups have created their own outlines according to the following three subjects:

• Subgroup 1: Building Inventory of the main problems regarding reservoir sedimentation
• Subgroup 2: Characterization of the different types of reservoirs
• Subgroup 3: Building the inventory of solutions

In April, the three separate outlines are combined into one overall outline, which consists of 25 chapters in total. An overall WG meeting was held on April 30th, where the overall outline has been temporarily approved.

Fig. 1. 3rd overall meeting of WODA ResDred WG on 30-04-2021

We are also happy to have our new member, Mr. Maarten Molhoek, business development manager of Royal IHC (CEDA), to join the WG as the 40th member.

A preliminary schedule for the WG has been created and displayed as below:

 

The following phases are marked as the milestones:

1	9/30/2020		Working Group established
2	10/1/2020	11/30/2020	Assign members to three subgroups
3	12/1/2020	3/31/2021	Develop Subgroups outlines
4	4/1/2021	5/31/2021	Develop overall outline
5	6/1/2021	6/30/2021	Assigning writing tasks
6	7/1/2021	11/30/2021	Writing by Subgroups members
7	12/1/2021	12/31/2021	Progress meeting of Subgroups
6	1/1/2022	4/30/2022	Writing by Subgroups members
8	5/1/2022	5/31/2022	Presentation at World Dredging Congress
6	6/1/2022	11/30/2022	Writing by Subgroups members
9	12/1/2022	2/28/2023	Entire document combined
10	3/1/2023	5/31/2023	Editing and approval by Working Group
11	6/1/2023	7/31/2023	Peer review
12	8/1/2023	9/30/2023	Final editing
13	10/1/2023		Release Final Publication

It is the faith of our WG that dredging will be one of the most effective solutions to address the sediment problems for reservoirs of the whole world!