Hollis Park Dam, also known as Reed City Park Dam, is a private-owned structure located in Mapleton, Illinois.
Wind
Humidity
Completed in 1982 by A.R.C. Associates Inc., this earth dam stands at a height of 51 feet and spans 700 feet in length, offering a storage capacity of 820 acre-feet. The dam primarily serves as a recreational area, nestled along the Trib LaMarsh Creek, with a surface area of 29 acres and a drainage area of 534.2 square miles.
With a high hazard potential, Hollis Park Dam is regulated by the Illinois Department of Natural Resources and undergoes regular inspections to ensure its safety and compliance with state regulations. While the condition assessment is currently not available, the dam has an uncontrolled spillway and outlet gates, with a maximum discharge capacity of 4,686 cubic feet per second. Despite its moderate risk assessment rating, the dam has not had an Emergency Action Plan updated in recent years, raising some concerns about emergency preparedness.
For water resource and climate enthusiasts, Hollis Park Dam offers a fascinating glimpse into the intersection of human infrastructure and natural water systems. Its design and purpose for recreation, combined with its location in the Peoria County landscape, provide an intriguing study of how dams can both enhance and potentially pose risks to the surrounding environment. As efforts continue to monitor and maintain the dam's safety, it serves as a reminder of the importance of sustainable water management practices in a changing climate.
Year Completed |
1982 |
Dam Length |
700 |
Dam Height |
51 |
River Or Stream |
TRIB LAMARSH CREEK |
Primary Dam Type |
Earth |
Surface Area |
29 |
Drainage Area |
534.2 |
Nid Storage |
820 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
51 |