Dog Hollow dam
Dog Hollow
Dog Hollow, a federal-owned reservoir located in Langell Valley, Oregon, serves a primary purpose of irrigation and is managed by the Bureau of Land Management. Built in 1959, this gravity dam has a hydraulic height of 13 feet and a structural height of 17 feet, with a storage capacity of 530 acre-feet. The reservoir, situated on the East Branch Lost River, covers an area of 1000 acres and has a maximum discharge of 488 cubic feet per second.
Despite being classified as having a low hazard potential, Dog Hollow has not undergone a recent condition assessment and is currently not rated for its overall state. The last inspection took place in September 2016, with a scheduled inspection frequency of every 5 years. The reservoir features a slide (sluice gate) outlet gates for water release. The surrounding area, managed by the Bureau of Land Management, offers a vital water resource for agricultural purposes in the region.
For water resource and climate enthusiasts, Dog Hollow presents an intriguing case study of a mid-century irrigation reservoir that continues to provide essential water supply for the local community. With its historical significance and ongoing management by federal agencies, this gravity dam stands as a testament to the intersection of water management, infrastructure development, and environmental stewardship in the Klamath region of Oregon.
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 Dog Hollow -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Link River At Klamath Falls | 1,440 cfs | → |
| North Canal At Highway 97 | 30 cfs | → |
| Ady Canal At Highway 97 | 39 cfs | → |
| Klamath Straits Drain Near Worden | 1 cfs | → |
| Klamath River At Keno | 1,110 cfs | → |
| Klamath River Blw John C.Boyle Pwrplnt | 1,300 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Dog Hollow.
Boat launches
- Barnes Valley
- Willow Valley Reservoir Boat Ramp
- Willow Valley
- South Gerber Campground
- Holbrook
- Heart Lake Landing
Campgrounds
Track Dog Hollow 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 Dog Hollow
Where does the data for Dog Hollow 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 Dog Hollow.