Scott Dam Reservoir
Scott Dam
Scott Dam is a concrete gravity dam located in Mendocino County, California, USA. It was built in 1922 by the Pacific Gas and Electric Company for hydroelectric power generation and irrigation purposes. The reservoir created by the dam, Lake Pillsbury, has a capacity of 82,000 acre-feet and is fed by the Eel River and its tributaries. The hydrology of the area is influenced by the Mediterranean climate that brings wet winters and dry summers. Surface flows in the Eel River are mainly from rainfall, while snowpack in the winter months is a significant source of water supply. The area surrounding the Lake Pillsbury is used for recreational activities such as camping, fishing, and boating. The reservoir also provides water for agricultural use in the nearby vineyards and orchards.
Daily levels at Scott Dam
Storage volume, pool elevation, and total release plotted from the operating agency's daily observations.
Pool Elevation
ft · code 1
Inside the reservoir
The real shoreline of this water body, with a depth model scaled so the basin holds exactly its recorded storage. Drag to orbit, scroll to zoom, and use the slider to drain and refill it. Click anywhere on the basin for the modelled depth there.
How this is built. The shoreline is the National Hydrography
Dataset polygon for this water body (“Lake Pillsbury”),
matched to the dam by proximity and confirmed by comparing its area with the
National Inventory of Dams surface area.
Depth is modelled, not surveyed: the basin is shaped by distance from
shore — deep in open water, shallow in the bays — and scaled so its
volume equals the recorded storage. No national bathymetric survey exists for
US reservoirs. Treat the shoreline, area and volume as measured, and the depth
distribution as an informed approximation.
Above normal pool, water is shown rising within the normal-pool
shoreline. Where it would actually spread depends on the surrounding
terrain, which is not modelled here — a reservoir in a steep canyon barely
widens, one on flat ground can spread a long way. This is a depth and volume
figure, not an inundation map. Official inundation mapping for a dam
comes from its Emergency Action Plan.
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 Scott Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Ef Russian R Nr Calpella Ca | 27 cfs | → |
| Ef Russian R Nr Ukiah Ca | 156 cfs | → |
| Russian R Nr Ukiah Ca | 0 cfs | → |
| Outlet C Nr Willits Ca | 4 cfs | → |
| Willits C Ab Lk Emily Nr Willits Ca | 0 cfs | → |
| Russian R Nr Talmage Ca | 125 cfs | → |
About Scott Dam
Where does the data for Scott Dam come from?
Daily storage, pool elevation, and release rates are sourced from USGS, USBR, and USACE monitoring stations. Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.
How often is the report updated?
Storage observations are updated daily by the operating agency. The 15-day weather forecast refreshes throughout the day. Snoflo caches and renders the most recent observation -- check the "as of" timestamp on the storage card.
What does the Hazard 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 below 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 reservoir, set a threshold, and you'll get a push the moment conditions cross.
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