Magnolia dam
Magnolia
Magnolia, also known as Lake of The Pines, is a privately owned dam located in California, specifically in the city of Lake of the Pines. This earth dam was completed in 1967 and stands at a height of 68 feet, with a hydraulic height of 60 feet. The dam serves primarily as a water supply source, with additional purposes including recreation for the surrounding community. It has a storage capacity of 4150 acre-feet and covers a surface area of 210 acres.
The dam poses a high hazard potential and undergoes regular inspections, with its condition assessed as satisfactory as of September 2017. The last inspection was conducted in January 2021, with an inspection frequency of once per year. The dam is regulated by the California Department of Water Resources and falls under the jurisdiction of the state, with permitting, inspection, and enforcement carried out by state agencies. The dam is situated on Magnolia Creek and serves as a crucial water resource in the region.
Overall, Magnolia is an essential water supply infrastructure in California, providing storage and recreational opportunities for the local community. With its high hazard potential, the dam is closely monitored and maintained to ensure the safety of the surrounding areas. As climate enthusiasts and water resource advocates, understanding the details of Magnolia's design, purpose, and regulatory oversight is vital in appreciating the significance of this dam in managing water resources and mitigating potential risks associated with its operation.
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 Magnolia -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Nf American R A North Fork Dam Ca | 732 cfs | → |
| Deer C Nr Smartville Ca | 55 cfs | → |
| Bear R Nr Wheatland Ca | 248 cfs | → |
| Dry C A Vernon St Bridge A Roseville Ca | 159 cfs | → |
| Pilot C Bl Mutton Canyon Nr Georgetown Ca | 2 cfs | → |
| Yuba R Nr Marysville Ca | 1,740 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Magnolia.
Boat launches
- Rattlesnake Road Placer County
- Iowa Hill Road Placer County
- River Trail El Dorado County
- Oxbow Raft Put-In Site
- Oak Hill Road 7935, Pilot Hill
- Oaks Nature Trail El Dorado County
Campgrounds
- Bear River County Park
- Mineral Bar - Auburn State Rec Area
- Rucky A Chucky - Auburn State Rec Area
- Nevada County Fairgrounds
- Georgetown Airport Campground
- Mother Lode River Center
Fishing spots
- Lake Of The Pines
- Lake Combie
- Pg&E Rock Creek Lake Fishing Access
- Lake Clementine
- Lake Rollins
- Camp Far West Reservoir
Track Magnolia 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 Magnolia
Where does the data for Magnolia 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 Magnolia.