Broad is a privately owned dam located in Arvada, Colorado, serving multiple purposes including irrigation, fire protection, stock, and small fish pond. Built in 1870, this earth dam stands at a height of 12 feet and has a storage capacity of 146 acre-feet, with a normal storage capacity of 92 acre-feet. The dam spans a length of 750 feet and has a surface area of 18 acres, with a maximum discharge of 109 cfs.

Managed by the Colorado Department of Water Resources, Broad is regulated, inspected, and enforced by state authorities, ensuring its safety and compliance with regulations. Despite being rated as having a low hazard potential, the dam is considered to have a moderate risk level, with a risk assessment score of 3. The last inspection was conducted in May 1991, with an inspection frequency of every 6 years.

Although not rated for its current condition, Broad remains an essential water resource infrastructure in the region, contributing to the irrigation and water management needs of Jefferson County, Colorado. With its historical significance dating back to the 19th century, the dam continues to play a vital role in supporting the local ecosystem and water supply in the area.