McKim & Creed provided single beam, wade and land surveys of more than 700 beach profile lines for this beach fill project.
The U.S. Army Corps of Engineers, Philadelphia District pumped approximately 11 million cubic yards of sand onto 13.7 miles of New Jersey coast to repair the dune and berm system, reduce risk and protect vulnerable beaches. As the hydrographic surveyor for the ~$100-million project, McKim & Creed provided pre- and post-placement condition surveys using single beam technology. Additionally, monthly deliveries of beach profiles were provided in AutoCAD Civil 3D and USACE Beach Morphology Analysis Package (BMAP) softwares.
Between summer and mid-winter 2018, McKim & Creed had two boats, two hydrographic surveying crews, two 3-person land crews and one 2-person land crew on site at all times. Hydrographic data was collected using an Odom CV100 and CV200 echosounder with a 200KHz transducer, as well as an SBG Ekinox 2 Inertial Navigation system, TSS-DMS-05 motion sensor and Trimble SPS 865 heading system. Both survey vessels operated with the latest Hypack Navigation software versions. All land and wade data was collected using a variety of GPS-RTK and conventional survey methods.
Sand for the beachfill was dredged 24 hours a day, seven days a week from three borrow sites located approximately 1.5 to 3 miles offshore of the project shoreline.
According to USACE’s Philadelphia District Commander Lt. Col. Michael Bliss, this “represents one of the largest beachfill contracts in the history of the United States Army Corps of Engineers.”