Schaefer dam
Schaefer
Schaefer, Ray Reservoir is a privately owned water resource located in Clackamas, Oregon, with the primary purpose of irrigation. This Earth dam structure stands at a height of 25 feet, with a hydraulic height of 21 feet, and was completed in 1965. The reservoir has a storage capacity of 18 acre-feet, with a normal storage level of 17.7 acre-feet and a surface area of 2.75 acres. It is situated within the Rock Creek tributary, under the regulatory oversight of the Oregon Water Resources Department.
Despite its low hazard potential, the condition of Schaefer, Ray Reservoir is currently not rated. The last inspection was conducted in October 2015, with a scheduled inspection frequency of every 6 years. Emergency action plans and risk assessments for the reservoir are currently not available, indicating a potential gap in preparedness and management measures. The reservoir does not have any associated locks or spillways, with a maximum discharge capacity of 68 cubic feet per second.
For water resource and climate enthusiasts, Schaefer, Ray Reservoir presents an intriguing case study of a privately owned irrigation reservoir in Oregon. With its Earth dam structure and limited storage capacity, the reservoir's management and regulatory framework offer valuable insights into the intersection of water resource utilization, infrastructure maintenance, and emergency preparedness. Further research and assessment of the reservoir's condition, risk profile, and operational protocols could provide valuable data for enhancing its long-term sustainability and resilience in the face of changing climatic conditions.
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 Schaefer -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Butte Creek At Monitor | 63 cfs | → |
| Abiqua Creek At Silverton | 74 cfs | → |
| Zollner Creek Near Mt Angel | 320 cfs | → |
| Silver Creek At Silverton | 52 cfs | → |
| Pudding River Near Woodburn | 224 cfs | → |
| Pudding River At Aurora | 347 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Schaefer.
Boat launches
Campgrounds
- Feyrer Park
- Three Bears Recreation Site
- Cedar Grove Recreation Site
- Aquila Vista Recreation Site
- North Falls Group Camp
- Butte Creek Campground
Track Schaefer 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 Schaefer
Where does the data for Schaefer 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 Low 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 Schaefer.