Dry Hollow is a privately owned irrigation dam located in Madison County, Montana, along Dry Hollow Creek.
Wind
Humidity
Completed in 1999, this earth dam stands at 25 feet high and spans 550 feet in length, with a storage capacity of 41.7 acre-feet. The dam serves the primary purpose of irrigation, providing water for agricultural use in the surrounding area.
Managed by the Montana Department of Natural Resources and Conservation (DNRC), Dry Hollow Dam is regulated, inspected, and enforced by the state agency to ensure its safety and compliance with regulations. With a low hazard potential and a moderate risk assessment rating, the dam poses minimal risk to downstream areas. Despite not being rated for its condition, the dam is regularly monitored for any necessary maintenance or repairs.
Located in a picturesque setting near the city of Harrison, Dry Hollow Dam offers a unique opportunity for water resource and climate enthusiasts to study the intersection of human-made structures and natural water systems. Its presence along Dry Hollow Creek serves as a vital resource for sustaining agricultural activities in the region, highlighting the importance of responsible water management practices for a sustainable future.
Year Completed |
1999 |
Dam Length |
550 |
Dam Height |
25 |
River Or Stream |
DRY HOLLOW CREEK |
Primary Dam Type |
Earth |
Surface Area |
7.9 |
Hydraulic Height |
24 |
Nid Storage |
41.7 |
Hazard Potential |
Low |
Nid Height |
25 |
| Location | Reservations | Toilets |
|---|---|---|
Harrison Lake FAS
|
||
TRAPPER SPRINGS REC SITE
|
||
Potosi Campground and Picnic Area
|
||
Potosi
|
||
Potosi Campground
|
||
Lewis and Clark Caverns State Park
|