Long Lake East Dam dam
Long Lake East Dam
Long Lake East Dam, located in Spokane, Washington, is a Federal-owned structure managed by the US Fish and Wildlife Service Office of Engineering. Built in 1960, this Earth-type dam stands at 25 feet high and spans a length of 2100 feet, creating a Fish and Wildlife Pond for conservation purposes. With a maximum storage capacity of 9178 acre-feet and a normal storage level of 1238 acre-feet, the dam plays a crucial role in managing water resources for the surrounding area.
Despite being classified as having a low hazard potential and fair condition assessment, Long Lake East Dam is considered to have a very high risk level due to its location and structural characteristics. The dam features a Controlled spillway with a width of 10 feet and other Controlled outlet gates. While it has not undergone recent modifications, the dam is subject to a regular inspection schedule to ensure its safe operation and compliance with regulatory standards.
Overall, Long Lake East Dam serves as a vital infrastructure for the protection of fish and wildlife in the region, with the Fish and Wildlife Service overseeing its design, construction, and operation. As water resource and climate enthusiasts, it is essential to monitor the condition and risk level of dams like Long Lake East Dam to safeguard the environment and surrounding communities from potential hazards and ensure sustainable water management practices.
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 Long Lake East Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| 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 | → |
| Little Spokane River At Dartford | 171 cfs | → |
| Hangman Creek At State Line Road Near Tekoa | 7 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Long Lake East Dam.
Boat launches
- Williams Lake Public Boat Launch
- West Fancher Road, Medical Lake
- Hog Lake Boat Ramp
- Scroggie Road 53700, Sprague
- South Gorge Trail Spokane
- North Aubrey L White Parkway Spokane
Track Long Lake East 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 Long Lake East Dam
Where does the data for Long Lake East 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 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 Long Lake East Dam.