Regulatory Branch


Published Dec. 3, 2020
Expiration date: 1/4/2021

The applicant seeks authorization to conduct grading and filling operations in waters
of the United States in order to construct a mixed-use (office, retail, & residential) development, with
associated infrastructure, in order to provide economic development and multi-modal transportation options
to complement existing development within St. Charles’ historic Main Street and Streets of St. Charles, while
serving as a connection between these areas and the Family Arena to the southwest. Proposed project plans
include the construction of a retaining wall parallel to Crystal Springs Creek/Bangert Slough, and grading/filling
behind it to facilitate construction.

The project proposes to impact 15.5-acres of forested wetland, 975 linear feet of perineal stream, & 376 linear
feet of intermittent stream for the development. The wetland is located within the floodplain of the Missouri
River, along the left descending bank. The wetland is also adjacent to, and inundated by, Crystal Springs Creek
due to its connection to the Missouri River.