Appendix_D_Wheatley_Reservoir_Bathy_NAVD88.pdf

This is a bathymetric survey appendix document related to a dredging services procurement issued by Charles County, Maryland for Wheatley Dam reservoir located at Gilbert Run Park in Charlotte Hall, Maryland. The file, titled "Appendix_D_Wheatley_Reservoir_Bathy_NAVD88.pdf," contains bathymetric data and survey information that supports the County's solicitation for qualified dredging contractors to perform wet dredging, hauling, and sediment disposal or beneficial reuse services. Initial 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. Sealed bids from qualified dredging firms are being requested, with the volume of sediment to be dredged dependent upon cost per cubic yard and associated project tasks. Charles County has indicated that post-dredging bathymetric survey data may be requested following completion of dredging activities to document elevation changes. Contractors are encouraged to review project documents and drawings and conduct site visits during normal business hours prior to bid submission.

The procurement is subject to coordination requirements with park accessibility and activities at Gilbert Run Park, a public facility, necessitating dredging activities be scheduled accordingly. The specific bid due date, award date, and contract term are not detailed in this appendix document itself, as it serves as a supporting exhibit providing technical survey data. Pricing will be evaluated on a per-cubic-yard basis for dredged sediment, with the total project cost contingent upon the volume of material removed and the bidder's quoted unit rates for associated services including hauling and disposal or beneficial reuse options.