Hog Lake Dam dam
Hog Lake Dam
Hog Lake Dam, also known as Deep Lake Dam, is a state-owned structure located in Sprague, Washington, along Fishtrap Creek. Built in 1957 by the Washington State Fish & Wildlife, this earth dam stands at a hydraulic height of 22.4 feet and serves primarily for recreational purposes. With a storage capacity of 540 acre-feet, the dam covers a surface area of 40 acres and drains a watershed of 48 square miles.
The dam's condition assessment in 2015 rated it as 'fair' with a high hazard potential. While it is state-regulated and subjected to inspections every five years, its emergency action plan was last revised in 1994. Despite its age, Hog Lake Dam continues to provide essential recreational opportunities to the local community. The dam's association with the Seattle District of the US Army Corps of Engineers ensures ongoing monitoring and management to mitigate any potential risks associated with its operation.
Hog Lake Dam's presence not only offers recreational benefits but also highlights the importance of maintaining and managing water resources in an efficient and safe manner. As a significant component of the water infrastructure in Spokane County, this dam plays a crucial role in flood control, water supply management, and wildlife habitat preservation. Its strategic location and design demonstrate the collaborative efforts between state agencies and local communities to ensure the sustainable utilization of natural resources amidst changing climate 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 Hog Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Coal Creek At Mohler | 1 cfs | → |
| Hangman Creek At Spokane | 54 cfs | → |
| Spokane River At Spokane | 5,300 cfs | → |
| Spokane River Below Nine Mile Dam At Spokane | 5,750 cfs | → |
| Little Spokane River Near Dartford | 414 cfs | → |
| Chamokane Creek Below Falls Near Long Lake | 28 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Hog Lake Dam.
Boat launches
- Hog Lake Boat Ramp
- Scroggie Road 53700, Sprague
- Williams Lake Public Boat Launch
- State Route 23 Sprague
- Max Harder Road 44091, Sprague
- West Fancher Road, Medical Lake
Track Hog Lake 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 Hog Lake Dam
Where does the data for Hog Lake 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 Hog Lake Dam.