Lyndon State College (upper) is an earth dam located in Caledonia County, Vermont, built in 1950. It carries a Significant hazard potential classification.
Dam profile
NID height · 6 ft6 ft tall and 125 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Lyndon State College (upper)
The primary purpose of Lyndon State College (upper) is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by State of Vermont - Lsc (state). It impounds the Passumpsic River-tr near Lyndon.
The dam stands 6 feet tall and stretches 125 feet across, creates a reservoir covering 1 acres, has a maximum storage capacity of 6 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1950, the structure is well-established, with more than 75 years of service.
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. The most recent inspection on record was 07/07/1994. That was over 32 years ago.
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Location
| State | Vermont |
| County | Caledonia |
| Nearest City | Lyndon |
| River/Stream | Passumpsic River-tr |
| Coordinates | 44.53367, -72.02441 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 6 ft |
| Dam Height | 6 ft |
| Dam Length | 125 ft |
| Year Completed | 1950 (76 years old) |
Storage & Hydraulics
| NID Storage | 6 acre-ft |
| Max Storage | 6 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Recreation |
| Owner | State of Vermont - Lsc |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 07/07/1994 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | VT00359 |
| Federal ID | VT00359 |
| More Info | State Dam Safety Program |