Silver Spruce #2
Silver Spruce #2 is an earth dam located in Boulder County, Colorado, built in 1958. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Silver Spruce #2
The primary purpose of Silver Spruce #2 is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Mc Kenna Properties, Lp (mike Spitz) (private). It impounds the South St. Vrain Creek-tr near Lyons.
The dam stands 18 feet tall and stretches 293 feet across, creates a reservoir covering 6 acres, and has a maximum storage capacity of 56 acre-feet. Completed in 1958, 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 09/10/2019.
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Location
| State | Colorado |
| County | Boulder |
| Nearest City | Lyons |
| River/Stream | South St. Vrain Creek-tr |
| Coordinates | 40.11681, -105.48548 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 293 ft |
| Year Completed | 1958 (68 years old) |
Storage & Hydraulics
| NID Storage | 56 acre-ft |
| Max Storage | 56 acre-ft |
| Normal Storage | 33 acre-ft |
| Surface Area | 6 acres |
| Max Discharge | 496 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | MC KENNA PROPERTIES, LP (MIKE SPITZ) |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/10/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO02368 |
| Federal ID | CO02368 |
| More Info | State Dam Safety Program |