Little Johnny
Little Johnny is an earth dam located in Fremont County, Colorado, built in 1954. It carries a Low hazard potential classification.
About Little Johnny
The primary purpose of Little Johnny is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by John G. Harvey (private). It impounds the Cottonwood-os near Canon City.
The dam stands 32 feet tall and stretches 354 feet across, creates a reservoir covering 4 acres, and has a maximum storage capacity of 50 acre-feet. Completed in 1954, 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. The most recent inspection on record was 06/29/1992. That was over 33 years ago.
At 32 feet, this dam is taller than 76% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Colorado |
| County | Fremont |
| Nearest City | Canon City |
| River/Stream | Cottonwood-os |
| Coordinates | 38.53422, -105.38495 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 29 ft |
| Dam Length | 354 ft |
| Year Completed | 1954 (72 years old) |
Storage & Hydraulics
| NID Storage | 50 acre-ft |
| Max Storage | 50 acre-ft |
| Normal Storage | 30 acre-ft |
| Surface Area | 4 acres |
| Max Discharge | 1,381 cfs |
| Spillway Type | None |
Ownership & Safety
| Purpose | Irrigation |
| Owner | JOHN G. HARVEY |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 06/29/1992 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO00467 |
| Federal ID | CO00467 |
| More Info | State Dam Safety Program |