Lake Jacksonville Dam, located in Belltown, Illinois, is a vital structure designed by WARREN & VAN PRAAG, INC.
Wind
Humidity
It serves multiple purposes, including recreation and water supply, with a primary focus on offering recreational opportunities to the local community. Completed in 1939, this earth dam stands at a height of 54 feet and stretches approximately 980 feet in length, with a maximum storage capacity of 12,812 acre-feet and a normal storage capacity of 6,099 acre-feet.
Managed by the local government, the dam is regulated and permitted by the Illinois Department of Natural Resources (IDNR), ensuring regular inspections and enforcement of safety measures. With a significant hazard potential due to its location on Sandy Creek, Lake Jacksonville Dam has a controlled spillway with a width of 160 feet and a maximum discharge capacity of 14,582 cubic feet per second. The dam's risk assessment is categorized as moderate, highlighting the need for ongoing risk management measures to safeguard the surrounding area.
As a popular spot for outdoor activities and water recreation, Lake Jacksonville Dam plays a crucial role in providing both leisure opportunities and essential water resources to the region. With its picturesque setting and strategic design, the dam stands as a testament to effective water resource management and environmental stewardship in Morgan County, Illinois.
Year Completed |
1939 |
Dam Length |
980 |
Dam Height |
54 |
River Or Stream |
SANDY CREEK |
Primary Dam Type |
Earth |
Surface Area |
477 |
Drainage Area |
10.8 |
Nid Storage |
12812 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Significant |
Foundations |
Unlisted/Unknown |
Nid Height |
54 |
Illinois River At Valley City
|
4670cfs |
Spring Creek At Springfield
|
6cfs |
Sangamon River At Petersburg
|
199cfs |
Bay Creek At Pittsfield
|
43cfs |
Macoupin Creek Near Kane
|
20cfs |
La Moine River At Ripley
|
23cfs |