Knoll Lake Dam
Knoll Lake Dam is an earth dam located in De Soto Parish, Louisiana, built in 2002. It carries a Low hazard potential classification and has a fair condition assessment.
About Knoll Lake Dam
The primary purpose of Knoll Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Lakes Of Bon Chasse, Llc (private). It impounds the Little Bayou Na Bonchasse near Holly.
The dam stands 28 feet tall and stretches 640 feet across, creates a reservoir covering 18 acres, has a maximum storage capacity of 207 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2002, the structure is relatively new.
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. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 11/17/2021.
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Location
| State | Louisiana |
| County | De Soto |
| Nearest City | Holly |
| River/Stream | Little Bayou Na Bonchasse |
| Coordinates | 32.12798, -93.66716 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 23 ft |
| Dam Length | 640 ft |
| Year Completed | 2002 (24 years old) |
Storage & Hydraulics
| NID Storage | 207 acre-ft |
| Max Storage | 207 acre-ft |
| Normal Storage | 189 acre-ft |
| Surface Area | 18 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 353 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Lakes of Bon Chasse, LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 11/17/2021 |
| Emergency Action Plan | No |
Identifiers
| NID ID | LA00641 |
| Federal ID | LA00641 |
| More Info | State Dam Safety Program |