Shadow Mountain Dike
Shadow Mountain Dike is an earth dam located in Grand County, Colorado, built in 1946. It carries a High hazard potential classification.
About Shadow Mountain Dike
Shadow Mountain Dike is a dam in Grand, Colorado. The dam is owned by Bureau Of Reclamation (federal). It impounds the Colorado River.
The dam stands 16 feet tall, creates a reservoir covering 1,852 acres, and has a maximum storage capacity of 18,369 acre-feet. Completed in 1946, the structure is well-established, with more than 75 years of service.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Notably, no emergency action plan is currently on file for this high-hazard dam. The most recent inspection on record was 07/28/2021.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Colorado dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Colorado |
| County | Grand |
| River/Stream | Colorado River |
| Coordinates | 40.20720, -105.84520 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 16 ft |
| Year Completed | 1946 (80 years old) |
Storage & Hydraulics
| NID Storage | 18,639 acre-ft |
| Max Storage | 18,369 acre-ft |
| Normal Storage | 18,639 acre-ft |
| Surface Area | 1,852 acres |
| Spillway Type | None |
Ownership & Safety
| Owner | BUREAU OF RECLAMATION |
| Owner Type | Federal |
| Hazard Classification | High |
| Condition Assessment | Not Available |
| Last Inspection | 07/28/2021 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CO01666 |
| Federal ID | CO01666S001 |
| More Info | State Dam Safety Program |