St. Charles County Parks seeks authorization to mechanically dredge approximately 11,200 cubic yards of accumulated sediment and sand from within the mouth of Hideaway Harbor boat ramp basin (Weber Lake), providing adequate depths for safe boater access from the boat ramp to the Mississippi River. The purpose of the project would be to remove sediments and sand that have been deposited within the boat basin due to the fluctuation of the water levels within the Mississippi River. Authorization to conduct periodic dredging activities would ensure an adequate depth for safe boating and public access to the Mississippi River. The dredge material will be placed on a barge, hauled to the downstream end of Portage Island and deposited back into the Mississippi River near mile 213.0. Dredging needs and frequency are dependent on the Mississippi River’s fluctuation and deposition patterns. Due to the unknown schedule of dredging needs, St. Charles County Parks seeks a 5-year permit authorization to allow periodic dredging on an as needed basis.
Dredging activities would occur within the existing Hideaway Harbor boat ramp basin (Weber Lake). The boat ramp and basin is located along the right descending bank of the Mississippi River, at river mile 213.8, approximately 1.2 miles west of Portage Des Sioux, in St. Charles County, Missouri.
Written comments must be submitted by replying by electronic mail, or written mail to the addresses shown in the signature block below. The Public Notice comment period opens on July 19, 2018, and closes on August 7, 2018.