Olds is an earth dam located in Weld County, Colorado, built in 1918. It carries a Low hazard potential classification.
Dam profile
NID height · 23 ft23 ft tall and 1,100 ft long. 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 Olds
Olds is a dam in Weld, Colorado. The dam is owned by Henrylyn Irrigation District (private). It impounds the Lost Creek-os near Roggen.
The dam stands 23 feet tall and stretches 1,100 feet across, creates a reservoir covering 134 acres, and has a maximum storage capacity of 1,700 acre-feet. Completed in 1918, the structure is over a century 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 09/06/2019.
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Location
| State | Colorado |
| County | Weld |
| Nearest City | Roggen |
| River/Stream | Lost Creek-os |
| Coordinates | 40.03444, -104.43223 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 23 ft |
| Dam Height | 23 ft |
| Dam Length | 1,100 ft |
| Year Completed | 1918 (108 years old) |
Storage & Hydraulics
| NID Storage | 1,700 acre-ft |
| Max Storage | 1,700 acre-ft |
| Normal Storage | 1,077 acre-ft |
| Surface Area | 134 acres |
| Max Discharge | 6,000 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Henrylyn Irrigation District |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 09/06/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO02087 |
| Federal ID | CO02087 |
| More Info | State Dam Safety Program |