Diamond, also known as Elliott #1, is a private dam located in La Salle, Weld County, Colorado.
Wind
Humidity
Built in 1940, this earth dam stands at a height of 26 feet and spans 650 feet in length. Its primary purpose is irrigation, with a storage capacity of 232 acre-feet and a normal storage level of 133 acre-feet. The dam is situated on the St. Vrain Creek-TR, within the jurisdiction of the Colorado Department of Water Resources.
Despite being classified as low hazard potential, Diamond has a fair condition assessment and a high risk rating of 2. While the dam does not have a spillway, it is equipped with outlet gates and undergoes regular inspections every six years. The last inspection was conducted in June 2020, ensuring its compliance with state regulations and enforcement measures. With its strategic location and contribution to irrigation in the area, Diamond serves as a critical water resource infrastructure for the surrounding agricultural community.
Year Completed |
1940 |
Dam Length |
650 |
Dam Height |
26 |
River Or Stream |
ST. VRAIN CREEK-TR |
Primary Dam Type |
Earth |
Surface Area |
12 |
Hydraulic Height |
26 |
Drainage Area |
18 |
Nid Storage |
232 |
Structural Height |
26 |
Hazard Potential |
Low |
Nid Height |
26 |
St. Vrain Creek At Mouth
|
124cfs |
St Vrain Cr Blw Boulder Cr At Hwy 119 Nr Longmont
|
102cfs |
St. Vrain Creek Below Longmont
|
-999999cfs |
Boulder Creek At Mouth
|
36cfs |
South Platte River At Fort Lupton
|
324cfs |
Big Thompson River At Mouth
|
47cfs |