Vancill Towhead
The purpose of this study was to find a solution to reduce or eliminate repetitive channel maintenance dredging from RM 68.00 to RM 67.00, enhance the environmental diversity at Vancill Towhead, and produce a report that communicates the results of the Hydraulic Sediment Report (HSR) model study to all project stakeholders.
The goals of the study were to:
- Investigate and provide analysis on the existing flow mechanics causing the sedimentation problems.
- Evaluate a variety of remedial measures utilizing an HSR Model with the objective of identifying the most effective and economical plan to reduce or eliminate sedimentation from RM 68.00 to RM 67.00. In order to determine the best alternative, 4 criteria were used to evaluate each alternative.
- The alternative should reduce or eliminate sedimentation between RM 68.00 and RM 67.00.
- The alternative should maintain the navigation channel requirement of at least 9 foot of depth and 300 foot of width.
- The alternative should avoid and minimize impacts to the existing environmental conditions present between RM 71.00 and 67.00.
- Maintain a side channel that can provide flow between RM 68.00 and RM 67.00.
- Communicate to other engineers, river industry personnel, and environmental agency personnel the results of the HSR model tests and the plans for improvement.
- Maintain a side channel that can provide flow between RM 68.00 and RM 67.00.
