Grimes, also known as Cash Canyon, is a privately owned irrigation dam located in Montezuma County, Colorado. Built in 1947, this earth dam stands at a height of 21 feet and has a maximum storage capacity of 103 acre-feet. The primary purpose of Grimes is to provide irrigation water for the surrounding area, with a drainage area of 3 square miles and a normal storage capacity of 75 acre-feet.

Despite its low hazard potential, Grimes has been assessed as unsatisfactory in terms of its condition, with a high risk rating. The dam lacks a spillway and has a maximum discharge capacity of 450 cubic feet per second. Regular inspections are conducted by the state regulatory agency to ensure its safety and compliance with state regulations. In case of emergencies, proper risk management measures are in place to mitigate potential risks associated with the dam.

Grimes serves as a crucial water resource in the region, contributing to the irrigation needs of the local agriculture industry. With its historical significance and role in water management, Grimes stands as a reminder of the importance of maintaining and monitoring infrastructure to safeguard against potential hazards and ensure sustainable water resource management in the face of changing climate conditions.