Located in Porcupine Bay, Washington, the Little Falls Dam stands as a testament to early 20th-century engineering, having been completed in 1910 by the design firm Thomas, Dean & Hoskins.
Wind
Humidity
This gravity dam on the Spokane River serves a primary purpose of hydroelectric power generation, with additional benefits for recreation. The dam's structural height of 54 feet and hydraulic height of 64 feet contribute to its storage capacity of 4,250 acre-feet and its ability to discharge up to 72,398 cubic feet per second.
With a fair condition assessment as of May 2019, the Little Falls Dam is considered to have a high hazard potential, prompting inspections every five years. Despite its age, the dam has undergone modifications in the year 2000 to ensure its structural integrity. As a state-regulated and permitted structure under the jurisdiction of the Washington Department of Ecology, the dam plays a crucial role in water resource management and environmental protection efforts in the region. For water resource and climate enthusiasts, the Little Falls Dam represents a blend of historical significance and modern-day functionality in the realm of hydroelectric infrastructure.
Years Modified |
2000 - Structural |
Year Completed |
1910 |
Dam Length |
875 |
River Or Stream |
Spokane River |
Primary Dam Type |
Gravity |
Surface Area |
186 |
Hydraulic Height |
64 |
Drainage Area |
5844 |
Nid Storage |
4250 |
Structural Height |
54 |
Hazard Potential |
High |
Foundations |
Rock |
Nid Height |
64 |