Lake Sandpoint Dam is an earth dam located in Jasper County, Illinois, built in 1972. It carries a Low hazard potential classification.
Dam profile
NID height · 27 ft27 ft tall and 325 ft long, taller than 59% of U.S. dams with a recorded height. 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 Lake Sandpoint Dam
The primary purpose of Lake Sandpoint Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Tony B. Arndt (private). It impounds the Trib Crooked Creek near St.marie.
The dam stands 27 feet tall and stretches 325 feet across, and has a maximum storage capacity of 131 acre-feet. Completed in 1972, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 09/15/2022.
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Location
| State | Illinois |
| County | Jasper |
| Nearest City | St.marie |
| River/Stream | Trib Crooked Creek |
| Coordinates | 39.06052, -88.12258 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 325 ft |
| Year Completed | 1972 (54 years old) |
Storage & Hydraulics
| NID Storage | 131 acre-ft |
| Max Storage | 131 acre-ft |
| Normal Storage | 97 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Tony B. Arndt |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 09/15/2022 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL00893 |
| Federal ID | IL00893 |
| More Info | State Dam Safety Program |