DCCM was selected to study and provide remedial measures to reduce erosion of the north banks of Cypress Creek (K100-00-00) adjacent to Collins Park. Cypress Creek, within the project limits, is a natural channel migrating to the north and undermining an asphalt trail owned and maintained by Precinct 4, a corridor parallel to K100-00-00. Cypress Creek within this reach does not have backslope swales or interceptors; significant uncontrolled sheet flows in the project area are found to increase erosion and rilling along the banks of K100-00-00. DCCM quantified the impacts of the sheet flows and identified design solutions.

The Precinct 4 trail is a public facility. Therefore, the project is sensitive to public interest, and we have approached it with this in mind. Within the project area, there is a 92-inch outfall with a large cast-in-place junction now located in the beds of K100-00-00. The 78-inch outfall has been undermined and disconnected from the manhole, and there is concern about additional erosion around this large manhole, which could cause future issues. DCCM successfully conducted detailed field investigations and provided prompt engineering services, addressing the erosion issues by regrading the slopes and adding stone toe protection and rip rap around the outfalls. This design economically addressed the infrastructure concerns providing a long-term solution.