Magnuson #1
Magnuson #1 is an earth dam located in Teller County, Colorado, built in 1969. It carries a Low hazard potential classification.
About Magnuson #1
The primary purpose of Magnuson #1 is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Colo Mountain Estates Property Owners Assoc (rober (private). It impounds the Grape Creek-tr near Florissant.
The dam stands 52 feet tall and stretches 333 feet across, creates a reservoir covering 6 acres, and has a maximum storage capacity of 88 acre-feet. Completed in 1969, 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 12/16/2020.
At 52 feet, this dam is taller than 93% of dams nationwide.
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Location
| State | Colorado |
| County | Teller |
| Nearest City | Florissant |
| River/Stream | Grape Creek-tr |
| Coordinates | 38.88390, -105.24695 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 52 ft |
| Dam Height | 32 ft |
| Dam Length | 333 ft |
| Year Completed | 1969 (57 years old) |
Storage & Hydraulics
| NID Storage | 88 acre-ft |
| Max Storage | 88 acre-ft |
| Normal Storage | 58 acre-ft |
| Surface Area | 6 acres |
| Max Discharge | 938 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | COLO MOUNTAIN ESTATES PROPERTY OWNERS ASSOC (ROBER |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 12/16/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO00370 |
| Federal ID | CO00370 |
| More Info | State Dam Safety Program |