Skyscraper is a masonry dam located in Boulder County, Colorado, built in 1940. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 24 ft24 ft tall and 125 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Skyscraper
The primary purpose of Skyscraper is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by City of Boulder (clark, Kevin) (local government). It impounds the Jasper Creek-tr near Eldora.
The dam stands 24 feet tall and stretches 125 feet across, creates a reservoir covering 12 acres, and has a maximum storage capacity of 185 acre-feet. Completed in 1940, the structure is well-established, with more than 75 years of service.
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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 08/31/2020.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Colorado |
| County | Boulder |
| Nearest City | Eldora |
| River/Stream | Jasper Creek-tr |
| Coordinates | 39.95554, -105.67066 |
Physical Characteristics
| Dam Type | Masonry |
| NID Height | 24 ft |
| Dam Height | 22 ft |
| Dam Length | 125 ft |
| Year Completed | 1940 (86 years old) |
Storage & Hydraulics
| NID Storage | 185 acre-ft |
| Max Storage | 185 acre-ft |
| Normal Storage | 146 acre-ft |
| Surface Area | 12 acres |
| Max Discharge | 550 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | City of Boulder (clark, Kevin) |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 08/31/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO00251 |
| Federal ID | CO00251 |
| More Info | State Dam Safety Program |