Tri Mountain Estates Dam dam
Tri Mountain Estates Dam
Located in La Center, Washington, the Tri Mountain Estates Dam, also known as the Tsugawa Brothers Reservoir Dam, is a private-owned structure regulated by the Washington Department of Ecology. Built in 1953, this earth-type dam stands at a hydraulic height of 32 feet and serves multiple purposes including irrigation and recreation. With a storage capacity of 177 acre-feet and a surface area of 18 acres, the dam plays a crucial role in water resource management in the area.
Situated on the Tr-Mason Creek, the Tri Mountain Estates Dam is a popular spot for recreational activities, attracting enthusiasts from all over the region. The dam's satisfactory condition assessment and high hazard potential highlight the importance of regular inspections and maintenance to ensure the safety of the surrounding community. With a drainage area of 0.22 square miles and a maximum discharge of 125 cubic feet per second, the dam plays a vital role in flood control and water storage in the region.
Congressional District 03's representative, Jaime Herrera Beutler, oversees the area where the Tri Mountain Estates Dam is located, emphasizing the significance of this structure in the local ecosystem. As climate change continues to impact water resources, the proper management and maintenance of dams like Tri Mountain Estates Dam are essential for sustainable water supply and flood protection in the region.
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 Tri Mountain Estates Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Lewis River At Ariel | 2,820 cfs | → |
| East Fork Lewis River Near Heisson | 244 cfs | → |
| Canyon Creek Near Amboy | 163 cfs | → |
| Speelyai Creek Near Cougar | 31 cfs | → |
| Burnt Bridge Creek Near Mouth At Vancouver | 37 cfs | → |
| Columbia Slough At Portland | 580 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Tri Mountain Estates Dam.
Boat launches
- Northwest La Center Road La Center
- Merwin Hatchery Court, Ariel
- South Pekin Road Cowlitz County
- Woodland Park Road Cowlitz County
- Dike Road Cowlitz County
- Yale Bridge Road Clark County
Campgrounds
- Paradise Point State Park
- Battle Ground Lake State Park
- Cold Creek- State Forest
- Louis Rasmussen Rv Park
- Campground: Sunset Falls Campground And Day Use
- Copper City Campsite
Paddle runs
- Headwaters In Sw 1/4 Of Sec 8, T4n, R6e To Gifford Pinchot Nf Boundary
- Nw1/4 Of Sec 9, T5n, R6e To Ne1/4 Of Sec 6, T5n, R5e
- Gifford Pinchot Nf Boundary To Maximum Pool Of Swift Reservoir In Nw1/4 Of Sec 35, T7n, R6e
- Headwaters In Sw1/4 Sec 28, T9n, R5e To Mount St. Helens National Volcanic Monument Boundary
- Confluence With Smith Creek To Confluence With Lewis River
- Mt. Adams Wilderness Boundary To Gifford Pinchot Nf Boundary
Track Tri Mountain Estates 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 Tri Mountain Estates Dam
Where does the data for Tri Mountain Estates 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 Tri Mountain Estates Dam.