Alexander Lake Dam
Alexander Lake Dam is an earth dam located in Crawford County, Missouri, built in 1956. It carries a Low hazard potential classification.
About Alexander Lake Dam
The primary purpose of Alexander 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 Mrs Doris J Alexander (private). It impounds the Prairie Creek - Offstream near Oak Hill.
The dam stands 25 feet tall, creates a reservoir covering 3 acres, has a maximum storage capacity of 40 acre-feet, and collects water from a drainage area of 70 square miles. Completed in 1956, 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.
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Location
| State | Missouri |
| County | Crawford |
| Nearest City | Oak Hill |
| River/Stream | Prairie Creek - Offstream |
| Coordinates | 38.13639, -91.43250 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Year Completed | 1956 (70 years old) |
Storage & Hydraulics
| NID Storage | 40 acre-ft |
| Max Storage | 40 acre-ft |
| Normal Storage | 20 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 70 sq mi |
Ownership & Safety
| Purpose | Debris Control |
| Owner | MRS DORIS J ALEXANDER |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO31311 |
| Federal ID | MO31311 |
| More Info | State Dam Safety Program |