Muskingum River Lock and Dam No. 11
Key Takeaway
Muskingum River Lock and Dam No. 11 is classified as significant hazard in Ohio. It was completed in 1841 and is 185 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 15 ft (taller than 12.4% in OH) |
| Dam Length | 340 ft |
| Dam Type | Timber Crib |
| Max Storage | 1.5K acre-ft |
| Normal Storage | 1.5K acre-ft |
| Surface Area | 352 acres |
| Drainage Area | 5,795 sq mi |
| Max Discharge | 11,594 cfs |
| Year Completed | 1841 (185 years old) |
| NID ID | OH00701 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
ODNR, Division of Parks & Watercraft
State Government
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Significant Hazard 43 ftFrequently Asked Questions
What is the hazard classification of Muskingum River Lock and Dam No. 11?
Muskingum River Lock and Dam No. 11 is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Muskingum River Lock and Dam No. 11?
Muskingum River Lock and Dam No. 11 is owned by ODNR, Division of Parks & Watercraft (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Muskingum River Lock and Dam No. 11 built?
Muskingum River Lock and Dam No. 11 was completed in 1841, making it 185 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Muskingum River Lock and Dam No. 11?
Muskingum River Lock and Dam No. 11 serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Muskingum River Lock and Dam No. 11?
Muskingum River Lock and Dam No. 11 has a dam height of 15 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Muskingum River Lock and Dam No. 11 last inspected?
Muskingum River Lock and Dam No. 11 was last inspected on October 23, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.