D.a. Lord #4 is an earth dam located in Weld County, Colorado. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 20 ft20 ft tall and 2,658 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 D.a. Lord #4
The primary purpose of D.a. Lord #4 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Henrylyn Irrigation District (private). It impounds the Lost Creek-tr near Roggen.
The dam stands 20 feet tall and stretches 2,658 feet across, creates a reservoir covering 200 acres, has a maximum storage capacity of 2,725 acre-feet, and collects water from a drainage area of 57 square miles.
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 06/14/2019.
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Location
| State | Colorado |
| County | Weld |
| Nearest City | Roggen |
| River/Stream | Lost Creek-tr |
| Coordinates | 40.08529, -104.45834 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 16 ft |
| Dam Length | 2,658 ft |
Storage & Hydraulics
| NID Storage | 2,725 acre-ft |
| Max Storage | 2,725 acre-ft |
| Normal Storage | 1,725 acre-ft |
| Surface Area | 200 acres |
| Drainage Area | 57 sq mi |
| Max Discharge | 2,580 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Henrylyn Irrigation District |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 06/14/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO00054 |
| Federal ID | CO00054 |
| More Info | State Dam Safety Program |