Appendix_G_Wheatley_Reservoir_Bathy_Contours_Depths.pdf

This file is a bathymetric contours and depth appendix supporting the Wheatley Dam Dredging Services procurement issued by Charles County, Maryland. The appendix provides technical survey data for wet dredging, hauling, and sediment disposal/beneficial reuse services at Wheatley Dam reservoir located at Gilbert Run Park in Charlotte Hall, Maryland. Bathymetric and sub-bottom profiling surveys conducted in late 2024 identified significant sediment accumulation in the northern and eastern areas of the reservoir, which are designated as the focus areas for an initial dredging event. The County Commissioners are requesting sealed bids from qualified dredging firms, with contractors encouraged to review all project documents and conduct site visits during normal business hours prior to bid submission. A post-dredging bathymetric survey may be requested by Charles County following the dredging event to document changes in elevation. Dredging activities must be coordinated with park accessibility and activities at the public park location.

The amount of sediment to be dredged is contingent upon the cost per cubic yard submitted by bidding contractors and all associated project tasks. Specific contract award value, budget range, and bid deadline information are not detailed within this appendix document. Charles County reserves the right to determine project scope and quantities based on contractor pricing and project feasibility. The file serves as a technical reference document containing bathymetric contour data and depth measurements to assist qualified dredging firms in developing accurate cost estimates and project proposals.