North 40 Lake Dam
North 40 Lake Dam is an earth dam located in Boone County, Missouri, built in 1936. It carries a Low hazard potential classification.
About North 40 Lake Dam
The primary purpose of North 40 Lake 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 Seymour Smith (private). It impounds the Tr Lick Fork near Mcbaine.
The dam stands 25 feet tall, creates a reservoir covering 4 acres, has a maximum storage capacity of 54 acre-feet, and collects water from a drainage area of 80 square miles. Completed in 1936, the structure is well-established, with more than 75 years of service.
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.
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Location
| State | Missouri |
| County | Boone |
| Nearest City | Mcbaine |
| River/Stream | Tr Lick Fork |
| Coordinates | 39.19850, -92.33971 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Year Completed | 1936 (90 years old) |
Storage & Hydraulics
| NID Storage | 54 acre-ft |
| Max Storage | 54 acre-ft |
| Normal Storage | 26 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 80 sq mi |
Ownership & Safety
| Purpose | Debris Control |
| Owner | SEYMOUR SMITH |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO11573 |
| Federal ID | MO11573 |
| More Info | State Dam Safety Program |