Sparta New City Reservoir Dam is an earth dam located in Randolph County, Illinois, built in 1952. It carries a Significant hazard potential classification.
Dam profile
NID height · 16 ft16 ft tall and 792 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Sparta New City Reservoir Dam
The primary purpose of Sparta New City Reservoir Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by City of Sparta (local government). It impounds the Maxwell Creek near Sparta.
The dam stands 16 feet tall and stretches 792 feet across, and has a maximum storage capacity of 393 acre-feet. Completed in 1952, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. The most recent inspection on record was 10/26/2022.
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Location
| State | Illinois |
| County | Randolph |
| Nearest City | Sparta |
| River/Stream | Maxwell Creek |
| Coordinates | 38.13051, -89.68592 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 16 ft |
| Dam Height | 16 ft |
| Dam Length | 792 ft |
| Year Completed | 1952 (74 years old) |
Storage & Hydraulics
| NID Storage | 393 acre-ft |
| Max Storage | 393 acre-ft |
| Normal Storage | 232 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | City of Sparta |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 10/26/2022 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL00555 |
| Federal ID | IL00555 |
| More Info | State Dam Safety Program |