Deardorff dam
Deardorff
Deardorff, Betty Jane is a privately owned dam located in Scotts Mills, Oregon, along the Little Coal Creek. Built in 1971, this earth dam stands at a height of 65 feet and has a storage capacity of 1300 acre-feet. It serves a primary purpose that is categorized as 'Other', with a significant hazard potential and a moderate risk assessment. The dam's spillway is uncontrolled, and it features slide gates as outlet gates.
The dam has a structural height of 68 feet and a hydraulic height of 58 feet, with a length of 450 feet. It covers a surface area of 60.3 acres and has a drainage area of 1 square mile. The dam is regulated by the Oregon Water Resources Department and undergoes regular inspections, with the last one being conducted in May 2018. The risk assessment for Deardorff, Betty Jane is classified as moderate, indicating the need for ongoing risk management measures to ensure the safety of the surrounding community and the water resources it protects.
Overall, Deardorff, Betty Jane is a vital water resource infrastructure in Clackamas County, Oregon, with a history of providing essential water storage and flood control benefits. As a privately owned dam, it is subject to state regulations and inspections to maintain its structural integrity and mitigate potential risks. Climate and water resource enthusiasts would find this dam's data intriguing, as it offers a glimpse into the engineering and management of a key piece of infrastructure that plays a critical role in water management 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 Deardorff -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Bull Creek Near Wilhoit | 0 cfs | → |
| Silver Creek At Silverton | 52 cfs | → |
| Butte Creek At Monitor | 44 cfs | → |
| Abiqua Creek At Silverton | 74 cfs | → |
| Little North Santiam River Near Mehama | 203 cfs | → |
| Zollner Creek Near Mt Angel | 320 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Deardorff.
Boat launches
Campgrounds
- Aquila Vista Recreation Site
- Cedar Grove Recreation Site
- Three Bears Recreation Site
- Butte Creek Campground
- North Falls Group Camp
- Feyrer Park
Track Deardorff 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 Deardorff
Where does the data for Deardorff 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 Deardorff.