Lake John
Lake John is an earth dam located in Windsor County, Vermont, built in 1900. It carries a Significant hazard potential classification and has a poor condition assessment.
About Lake John
The primary purpose of Lake John is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by South Royalton Fire Dist. No. 1 (local government). It impounds the White River-tr near Royalton.
The dam stands 27 feet tall and stretches 240 feet across, creates a reservoir covering 1 acres, has a maximum storage capacity of 12 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1900, the structure is over a century old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 06/29/2017.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Vermont |
| County | Windsor |
| Nearest City | Royalton |
| River/Stream | White River-tr |
| Coordinates | 43.81682, -72.52802 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 240 ft |
| Year Completed | 1900 (126 years old) |
Storage & Hydraulics
| NID Storage | 12 acre-ft |
| Max Storage | 12 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | SOUTH ROYALTON FIRE DIST. NO. 1 |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 06/29/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | VT00307 |
| Federal ID | VT00307 |
| More Info | State Dam Safety Program |