Joder
Joder is an earth dam located in Boulder County, Colorado, built in 1962. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Joder
The primary purpose of Joder is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Left Hand Water District (jason Whitmore) (public utility). It impounds the Dry Creek-tr near Boulder.
The dam stands 46 feet tall and stretches 1,100 feet across, creates a reservoir covering 7 acres, and has a maximum storage capacity of 140 acre-feet. Completed in 1962, 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 10/07/2020.
At 46 feet, this dam is taller than 91% of dams nationwide.
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Location
| State | Colorado |
| County | Boulder |
| Nearest City | Boulder |
| River/Stream | Dry Creek-tr |
| Coordinates | 40.11140, -105.28334 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 46 ft |
| Dam Height | 36 ft |
| Dam Length | 1,100 ft |
| Year Completed | 1962 (64 years old) |
Storage & Hydraulics
| NID Storage | 140 acre-ft |
| Max Storage | 140 acre-ft |
| Normal Storage | 102 acre-ft |
| Surface Area | 7 acres |
| Max Discharge | 1,380 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | LEFT HAND WATER DISTRICT (JASON WHITMORE) |
| Owner Type | Public Utility |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/07/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO00174 |
| Federal ID | CO00174 |
| More Info | State Dam Safety Program |