Updegrave dam
Updegrave
Updegrave is a privately owned dam located in Winchester, Douglas County, Oregon. Completed in 1957, this Earth dam stands at 30 feet high and serves primarily for irrigation purposes along the North Umpqua River. With a storage capacity of 172 acre-feet and a surface area of 13.94 acres, Updegrave plays a crucial role in managing water resources in the area.
The dam's high hazard potential is closely monitored by the Oregon Water Resources Department, which regulates its operations, conducts regular inspections, and enforces safety measures. With a satisfactory condition assessment as of November 2020, Updegrave is equipped with Needle outlet gates and has a maximum discharge capacity of 90 cubic feet per second. Its location within the Portland District underscores the importance of this structure in supporting agricultural activities and water management in the region.
As a key component of the local water infrastructure, Updegrave represents a significant investment in enhancing water supply reliability for irrigation purposes. Despite its high hazard potential, the dam's satisfactory condition and regulatory oversight by the OWRD ensure that it continues to contribute to the sustainable utilization of water resources in the North Umpqua River watershed. With its role in water storage and management, Updegrave stands as a testament to the intersection of water resource management and climate resilience in Oregon's agricultural landscape.
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 Updegrave -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Little River At Peel | 2,120 cfs | → |
| North Umpqua River At Winchester | 1,140 cfs | → |
| South Umpqua River Near Brockway | 345 cfs | → |
| Steamboat Creek Near Glide | 123 cfs | → |
| Little Wolf Creek Near Tyee | 3 cfs | → |
| South Umpqua River At Tiller | 172 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Updegrave.
Boat launches
- Colliding Rivers
- Lone Rock Drift Boat Ramp
- Lone Rock Drift Boat Access
- Whistlers Bend Park
- Cooper Creek East
- Douglas County
Campgrounds
- Whistlers Bend County Park
- Cavitt Creek Falls Recreation Site
- Cavitt Creek Falls - North Umpqua River Ra
- Wolf Creek Campground
- Millpond Recreation Site
- Lone Pine Recreation Site
Track Updegrave 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 Updegrave
Where does the data for Updegrave 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 Updegrave.