Grass Valley, also known as Harvey Gap or Antler, is a significant water resource located in Garfield County, Colorado. This public utility dam, completed in 1892, serves primarily for irrigation purposes and stands at a height of 61 feet with a length of 800 feet. Its storage capacity is impressive, holding up to 6111 acre-feet of water with a normal storage level of 5060 acre-feet.

The dam has a high hazard potential due to its condition assessment being deemed unsatisfactory, and it has undergone modifications over the years to ensure its structural integrity. The spillway type is uncontrolled with a width of 15 feet, and it is regulated, permitted, inspected, and enforced by the Colorado Department of Water Resources. Grass Valley is an essential part of the local water infrastructure, supporting agricultural activities and contributing to the overall water management in the region.

For water resource and climate enthusiasts, Grass Valley serves as a fascinating example of historic water infrastructure that continues to play a vital role in modern water management. With its rich history dating back to the late 19th century and its ongoing regulatory oversight, this dam represents a blend of tradition and innovation in ensuring water sustainability for the community. The data on Grass Valley highlights the importance of maintaining and upgrading aging infrastructure to meet current safety standards and environmental challenges, making it a subject of interest for those interested in water resource management and climate resilience.