Summit North Marina Hydrographic Survey

Location:
Middletown, DE
Summit North Marina, located on the Chesapeake and Delaware (C&D) Canal, provides boat slips and marine services to local residences and transient mariners. The location of the marina provides easy access to both the Chesapeake Bay and the Delaware River making it a sought after resting spot. 

The location is also subject to silting of the channel into the marina. Sediment from the C&D Canal and soil from the bank situated next to the basin continually flow into the marina basin. A depth of 12 ft is essential for vessels to enter and exit the marina for access to the docks, fuel and other marine services. The depth had been reduced necessitating dredging or the economic sustainability of the marina operation would be significantly impacted.

The Delaware Department of Natural Resources and Environmental Control (DNREC) was responsible (in accordance with the agreement with operators of Summit North Marina) to acquire the necessary permits for dredging. A survey of the marina was a requirement of the U.S. Army Corps of Engineers’ (USACE) dredge permit and the USACE’s lease with the State of Delaware for the property. 

DNREC turned to Karins and Associates to provide a pre- and post-bathymetric survey of the Summit North Marina basin and a land survey of the upland dredge disposal area, the Penn Central West Disposal Site. The surveys will enable DNREC and the USACE to determine the volume of the marina dredge and whether there is ample capacity at the disposal site. Karins used an Unmanned Surface Vessel (USV) which is ideally suited for this type of project…it is able to go into tight areas not accessible by traditional boats and, because it is operated on land, it has a greater safety factor than water operations.