Project Summary: Chatham’s Pleasant Bay Dredging Project
Project Summary: Chatham’s Pleasant Bay Dredging Project:
Mobilizing for this project began on November 2nd, and continued over the few days as several sections of pipe had to be repositioned from Hardings Beach to Pleasant Bay.
The disposal area for this project was along Scatteree Beach.
Dredging started on Friday, November 5th and was completed on Wednesday December 1st.
The area to be dredged is shown below from the Pre-Dredge Survey:
The Pre-Dredge Survey showed volumes of 15,416 Cubic Yards within the dredge area (see table below):
The volumes removed is shown below from the Post-Dredge Survey:
The Post-Dredge Survey showed volumes removed of 14,720 Cubic Yards within the dredge area (see table below):
Interpreting the colored soundings…
The ‘soundings’ are specific depths that are taken from the surveys. The coloring of these soundings reflect depth ranges;
The ‘Brown Soundings’ depict depths that are less than 6.0′ MLW (Mean Low Water).
The ‘Green Soundings’ depict depths that are between 6.0′ to 7.0′ MLW (Mean Low Water).
The ‘Blue Soundings’ depict depths that deeper than or equal to 7.0′ MLW (Mean Low Water).
Summarizing, the main channels were cleared to a minimum depth of 6.0′ MLW throughout the dredged areas. Significant currents made dredging in this area challenging during peak periods but as noted in the results, the project was very successful.
The County Dredge Sand Shifter on station in the Pleasant Bay channel area
The disposal area on Scatteree Beach
