Bosch No. 2 dam
Bosch No. 2
Bosch No. 2 is a privately owned dam located in Windsor, Sonoma County, California, along the Tr Windsor Creek. Completed in 1962, this earth dam stands at a height of 55 feet and serves the primary purpose of water supply for irrigation, recreation, and other uses. Managed by the Natural Resources Conservation Service, the dam has a storage capacity of 37 acre-feet and covers a surface area of 2 acres.
Despite its satisfactory condition assessment, Bosch No. 2 poses a high hazard potential, prompting regular inspections by state regulatory agencies to ensure its safety and compliance with permitting requirements. With a history of state jurisdiction, regulation, and enforcement, the dam is equipped with emergency action plans and inundation maps to mitigate risks and protect downstream communities. The last inspection conducted in December 2019 revealed no immediate concerns, but the dam remains under close monitoring due to its critical role in providing water resources to the region.
The presence of Bosch No. 2 highlights the intersection of water resource management and climate resilience in California, where infrastructure plays a vital role in addressing water supply challenges. As a key player in the state's water supply system, this dam serves as a reminder of the ongoing efforts to balance the needs of various stakeholders while ensuring the safety and sustainability of water resources in the face of a changing climate.
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 Bosch No. 2 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Maacama C Nr Kellogg Ca | 14 cfs | → |
| Russian R Nr Healdsburg Ca | 187 cfs | → |
| Dry C Nr Mouth Nr Healdsburg Ca | 74 cfs | → |
| Russian R Nr Windsor Ca | 295 cfs | → |
| Mark West C Nr Mirabel Heights Ca | 24 cfs | → |
| Russian R A Digger Bend Nr Healdsburg Ca | 195 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Bosch No. 2.
Boat launches
- Public Boat Ramp Spur Sonoma County
- Fisherman's Trail Sonoma County
- Doran Beach Road 355, Bodega Bay
- Chaparral Cove Napa County
- Ball Park Avenue 14775, Clearlake
- Knoxville Road 1601, Napa County
Campgrounds
- Napa County Fairgrounds
- Spring Lake Regional Park
- Sonoma County Fairgrounds Rv Park
- Bothe - Napa Valley State Park
- Sugarloaf Ridge State Park
- Campsite #13
Fishing spots
Paddle runs
- Cache Creek
- Olema Ranch Campground To Caltrans Corporation Yard At Point Reyes Station
- Headwaters To Ends One Quarter Mile South Of Bear Valley Road Bridge Segment 1: Ends 1/4 Mile South Of Bear Valley Road Bridge Segment 2: Caltrans Corporation Yard At Point Reyes Staton.
More reservoirs
Track Bosch No. 2 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 Bosch No. 2
Where does the data for Bosch No. 2 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 Bosch No. 2.