Panama No. 1 - Northeast is a rockfill dam located in Boulder County, Colorado, built in 1904. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 12 ft12 ft tall and 400 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic rockfill embankment section and the water level is illustrative.
About Panama No. 1 - Northeast
The primary purpose of Panama No. 1 - Northeast is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Boulder & White Rock Ditch & Reservoir Co. (grant, (private). It impounds the Boulder Creek-os near Evans.
The dam stands 12 feet tall and stretches 400 feet across, creates a reservoir covering 370 acres, has a maximum storage capacity of 6,979 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1904, 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 06/05/2020.
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Location
| State | Colorado |
| County | Boulder |
| Nearest City | Evans |
| River/Stream | Boulder Creek-os |
| Coordinates | 40.09900, -105.07646 |
Physical Characteristics
| Dam Type | Rockfill |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 400 ft |
| Year Completed | 1904 (122 years old) |
Storage & Hydraulics
| NID Storage | 6,979 acre-ft |
| Max Storage | 6,979 acre-ft |
| Normal Storage | 4,691 acre-ft |
| Surface Area | 370 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 4,150 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Boulder & White Rock Ditch & Reservoir Co. (grant, |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/05/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO02822 |
| Federal ID | CO02822 |
| More Info | State Dam Safety Program |