John May #1 is an earth dam located in El Paso County, Colorado, built in 1967. It carries a Low hazard potential classification.
Dam profile
NID height · 25 ft25 ft tall and 1,000 ft long, taller than 50% of U.S. dams with a recorded height. 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 John May #1
The primary purpose of John May #1 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by John M. May (john May) (private). It impounds the Rock Creek-os near Ft.carson.
The dam stands 25 feet tall and stretches 1,000 feet across, creates a reservoir covering 5 acres, and has a maximum storage capacity of 40 acre-feet. Completed in 1967, 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 10/17/2013. That was over 12 years ago.
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Location
| State | Colorado |
| County | El Paso |
| Nearest City | Ft.carson |
| River/Stream | Rock Creek-os |
| Coordinates | 38.70000, -104.83390 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 1,000 ft |
| Year Completed | 1967 (59 years old) |
Storage & Hydraulics
| NID Storage | 40 acre-ft |
| Max Storage | 40 acre-ft |
| Normal Storage | 25 acre-ft |
| Surface Area | 5 acres |
| Max Discharge | 300 cfs |
| Spillway Type | None |
Ownership & Safety
| Purpose | Irrigation |
| Owner | John M. May (john May) |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 10/17/2013 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO02679 |
| Federal ID | CO02679 |
| More Info | State Dam Safety Program |