Pittsfield Dredge Disposal Pond Dam is an earth dam located in Pike County, Illinois, built in 1997. It carries a Low hazard potential classification.
Dam profile
NID height · 35 ft35 ft tall and 3,000 ft long, taller than 80% 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 Pittsfield Dredge Disposal Pond Dam
The primary purpose of Pittsfield Dredge Disposal Pond Dam is debris control. The dam is designed to catch sediment, rocks, and debris carried by flowing water — particularly important in areas prone to mudslides or heavy erosion. The dam is owned by City of Pittsfield (local government). It impounds the Trib Blue Creek.
The dam stands 35 feet tall and stretches 3,000 feet across, creates a reservoir covering 15 acres, has a maximum storage capacity of 268 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1997, the structure is 29 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 04/18/2024.
At 35 feet, this dam is taller than 80% of dams nationwide.
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Location
| State | Illinois |
| County | Pike |
| Nearest City | None |
| River/Stream | Trib Blue Creek |
| Coordinates | 39.65462, -90.75944 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 35 ft |
| Dam Length | 3,000 ft |
| Year Completed | 1997 (29 years old) |
Storage & Hydraulics
| NID Storage | 268 acre-ft |
| Max Storage | 268 acre-ft |
| Surface Area | 15 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Debris Control |
| Owner | City of Pittsfield |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 04/18/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL50396 |
| Federal ID | IL50396 |
| More Info | State Dam Safety Program |