A community meeting in late October—sponsored by Council Member Mike Siegel along with the Parks and Recreation and Watershed Protection departments—offered support for maintaining the pond at Sheffield Northwest Park. More studies will be required to determine the feasibility of potential solutions, and a preliminary timeline suggested work could extend for one to two years.
Independent researchers found historical documentation that formally identified a spring in the vicinity of the pond in the 1970s. Whether that spring may have been disturbed by park construction or the extent to which it exists would need to be assessed.
The main option presented at the meeting included converting the pond to a “water quality” pond that would fall under control and maintenance of Watershed Protection, as was discussed during the park’s Vision Plan process several years ago. A plan like this would involve engineering additional ways to capture rainfall and to direct runoff to the pond. These options could involve re-grading areas of the park so that the catchment area allows a more direct flow to the pond. And as the dam restoration project proceeds, there could be opportunities to direct a controlled amount street drainage to the pond.
Converting the pond to a water quality pond to serve a more integral role in the Shoal Creek flood control system likely would require substantial re-engineering, with correspondingly significant costs. Two versions presented included maintaining the pond in its current size and form, while the second option would result in a larger pond. Very preliminary costs were estimated at $1.5 million to $3 million, depending on size and engineering requirements.
Beyond the fundamental concern of ensuring sufficient water supply, there is a question about whether the pond has fractures that might require a liner to be installed. If needed, this would involve emptying the pond and removing all aquatic life while the work is done. The good news is that after the October rains finally brought an end to the record-breaking Fall dry spell, the pond had filled substantially and was holding its level.
Staff from PARD and Watershed said they have successfully collaborated on projects to maintain both the natural aesthetic and functionality of a water quality pond. They are aware of the importance of the pond at Sheffield Northwest Park to the birding community, including maintaining the bald cypress trees and preserving the natural habitat.
The park’s adopted Vision Plan called for several scientific studies related to the pond. It was unclear to what extent those have begun. Ongoing community participation as plans for the pond were developed also was specified. It is hoped that PARD and Watershed’s future collaboration will keep park neighbors and friends updated and involved.
By Mary Fero
