Anderson Lake Dam, located in Allyn, Washington, is a private earth dam primarily used for recreational purposes.
Wind
Humidity
Completed in 1966, this dam stands at a hydraulic height of 28 feet and a structural height of 21 feet, with a length of 240 feet. It has a maximum storage capacity of 600 acre-feet and normal storage of 370 acre-feet, serving as a vital resource for the surrounding area.
Managed by the Washington Department of Ecology, Anderson Lake Dam is state-regulated, inspected, and enforced to ensure its safety and functionality. With a high hazard potential but a satisfactory condition assessment as of September 2020, this dam plays a crucial role in managing water resources and protecting the local community from potential risks. Additionally, the dam is situated on the Unnamed Tributary of Sherwood Creek, contributing to the overall drainage area of 0.95 square miles.
As a key feature in the landscape of Mason County, Anderson Lake Dam is not just a recreational spot but also a significant element in water resource management. With its strategic location and state-of-the-art design, this dam serves as a testament to the importance of sustainable infrastructure in the face of climate change and evolving environmental challenges.
Year Completed |
1966 |
Dam Length |
240 |
River Or Stream |
Unnamed Tr-Sherwood Creek |
Primary Dam Type |
Earth |
Surface Area |
44 |
Hydraulic Height |
28 |
Drainage Area |
0.95 |
Nid Storage |
600 |
Structural Height |
21 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
28 |
Huge Creek Near Wauna
|
30cfs |
Skokomish River Near Potlatch
|
4970cfs |
North Fork Skokomish River Near Potlatch
|
612cfs |
Leach Creek Near Fircrest
|
28cfs |
Chambers Creek Bl Leach Creek Near Steilacoom
|
285cfs |
Flett Creek At Tacoma
|
108cfs |
| Location | Reservations | Toilets |
|---|---|---|
Belfair State Park
|
||
Twanoh State Park
|
||
Jarrell Cove State Park
|
||
Tahuya River Horse Camp
|
||
Kopachuck State Park
|
||
wwta camp site
|