North Ranch Storage Lagoon dam
North Ranch Storage Lagoon
The North Ranch Storage Lagoon in Mason, Washington, is a privately owned facility designed by E & A Environmental Consultants. It serves as an offstream storage for Tr. Cranberry Creek and was completed in 2018 with a storage capacity of 21 acre-feet. With a surface area of 1.5 acres and a hydraulic height of 18 feet, the lagoon plays a significant role in water resource management in the region.
Managed by the Washington Department of Ecology, the North Ranch Storage Lagoon is regulated, inspected, and enforced by state agencies to ensure its safety and compliance with regulations. Despite being classified as having a significant hazard potential, the lagoon's condition assessment is satisfactory, providing assurance to both the owners and the surrounding community. With its emergency action plan in place, the lagoon is prepared to respond to any potential risks or incidents effectively.
Water resource and climate enthusiasts will find the North Ranch Storage Lagoon an intriguing example of private infrastructure contributing to water storage and management in Washington. Its construction design, storage capacity, and regulatory oversight offer valuable insights into the intersection of environmental conservation and infrastructure development. As a key player in local water resource management, the lagoon showcases the importance of sustainable water storage solutions in mitigating climate change impacts and ensuring water security for communities.
Dam data reference
Condition Assessment
- Satisfactory
- No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
- Fair
- No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action.
- Poor
- A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency.
- Unsatisfactory
- A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
- Not Rated
- The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Hazard Potential Classification
- High
- Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
- Significant
- Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environmental damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
- Low
- Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
- Undetermined
- Dams for which a downstream hazard potential has not been designated or is not provided.
Plan around the weather
Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around North Ranch Storage Lagoon -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Skokomish River Near Potlatch | 512 cfs | → |
| North Fork Skokomish River Near Potlatch | 254 cfs | → |
| South Fork Skokomish River Near Union | 172 cfs | → |
| Nf Skokomish R Bl Staircase Rpds Nr Hoodsport | 118 cfs | → |
| Huge Creek Near Wauna | 7 cfs | → |
| Deschutes River At E St Bridge At Tumwater | 165 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near North Ranch Storage Lagoon.
Boat launches
- East Way To Tipperary Street 204, Mason County
- Highway 106 5101, Union
- Us 101 Mason County
- 3041 E Mason Lake Dr E, Grapeview, Wa 98546
- East Harstine Bridge Road 51, Shelton
Campgrounds
- Potlatch State Park
- Potlach State Park Campground
- Twanoh State Park
- Camp Hahobas
- Jarrell Cove State Park
- Oxbow Rustic
Paddle runs
- Headwaters- Includes All Tributaries To Confluence With North Fork Skokomish River
- Headwaters To Confluence With North Fork Skokomish River
- Headwaters- Includes All Tributaries Within Park To Olympic National Park Boundary
- Headwaters- Includes All Tributaries Within Park To Confluence With North Fork Skokomish River
- Headwaters- Includes All Tributaries And Excludes Flapjack Lakes To Confluence With North Fork Skokomish River
Track North Ranch Storage Lagoon in the Snoflo app
Save this dam as a favorite and get the local NOAA / yr.no forecast plus regional flow context wherever you are.
About North Ranch Storage Lagoon
Where does the data for North Ranch Storage Lagoon come from?
Structural and regulatory data come from the U.S. Army Corps of Engineers' National Inventory of Dams (NID). Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.
How often is the report updated?
NID structural data refreshes annually as the Corps publishes updated assessments. The weather forecast refreshes throughout the day.
What does the Significant hazard rating mean?
The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card above for the full definitions.
What's "% of normal"?
The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).
Can I get alerts when storage crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app. Favorite this dam, set a threshold, and you'll get a push the moment conditions cross.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of North Ranch Storage Lagoon.