Casad Dam dam
Casad Dam
Casad Dam, located in Belfair, Washington, is a vital structure owned by the local government and regulated by the Washington Department of Ecology. Completed in 1956, this arch-type dam on the Union River serves the primary purpose of supplying water to the region, with a storage capacity of 4,500 acre-feet and a maximum discharge of 520 cubic feet per second. Standing at a hydraulic height of 190 feet and a structural height of 130 feet, the dam spans 416 feet in length and covers a surface area of 40 acres.
Despite being classified as having a high hazard potential, Casad Dam is currently assessed to be in fair condition as of its last inspection in August 2018. The dam's Emergency Action Plan (EAP) status is unknown, and there is no record of the existence of inundation maps or risk assessments. With a history of state regulation and inspection, Casad Dam remains a critical water resource infrastructure in Kitsap County, Washington, ensuring a reliable water supply for the surrounding communities while being subject to ongoing monitoring and maintenance to ensure public safety and environmental protection.
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 Casad Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Huge Creek Near Wauna | 7 cfs | → |
| Duckabush River Near Brinnon | 155 cfs | → |
| Big Quilcene River Below Diversion Nr Quilcene | 40 cfs | → |
| Skokomish River Near Potlatch | 512 cfs | → |
| Duwamish River At Golf Course At Tukwila | 6,700 cfs | → |
| Leach Creek Near Fircrest | 2 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Casad Dam.
Boat launches
- Kitsap Lake Road Northwest 278, Bremerton
- Chico Beach Drive Northwest 5398, Kitsap County
- Northeast State Highway 300 Mason County
- Katherine Street Northwest 4800-4856, Bremerton
- Sheldon Boulevard 510, Bremerton
- Lorna Lee Way Mason County
Campgrounds
- Green Mountain Horse Camp
- Scenic Beach State Park
- Scenic Beach State Park Campground
- Belfair State Park
- Tahuya River Horse Camp
- Illahee State Park
Paddle runs
- Brothers Wilderness Boundary To Olympic Nf Boundary
- Olympic Nf/Olympic Np Bounary To Brothers Wilderness Boundary
- Headwaters- Includes All Tributaries To Confluence With Duckabush River
- Headwaters- Includes All Tributaries (Upstream From Station Creek) To Confluence With Dosewallips River
- Headwaters- Includes All Tributaries To Confluence With Dosewallips River
Track Casad Dam 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 Casad Dam
Where does the data for Casad Dam 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 High 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 Casad Dam.