Fleming Hill No. 2 dam
Fleming Hill No. 2
Fleming Hill No. 2 is a significant earth dam located in Vallejo, California, with a primary purpose of water supply. Completed in 1912, this dam stands at a height of 39.25 feet and has a hydraulic height of 36.4 feet. It has a storage capacity of 33 acre-feet and spans a length of 570 feet, harnessing the waters of Tr Napa River for the local community. The dam is under state regulation and inspection, ensuring its safety and compliance with the necessary standards.
Despite its age, Fleming Hill No. 2 is in satisfactory condition according to the last assessment in September 2017. With a high hazard potential, this dam is crucial for water resource management in Solano County. It is equipped with emergency action plans and regular inspections to mitigate any risks. The dam's strategic location and historical significance make it a vital infrastructure for climate enthusiasts and water resource professionals to study and monitor for 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 Fleming Hill No. 2 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Nathanson C A Sonoma Ca | 0 cfs | → |
| Napa R Nr Napa Ca | 40 cfs | → |
| Novato C A Novato Ca | 0 cfs | → |
| Sonoma C A Agua Caliente Ca | 14 cfs | → |
| Corte Madera C A Ross Ca | 4 cfs | → |
| Petaluma R A Copland Pumping Station A Petaluma Ca | 90 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Fleming Hill No. 2.
Boat launches
- North Camino Alto Vallejo
- Curtola Parkway 139-199, Vallejo
- Cuttings Wharf Road 3270, Napa
- Cuttings Wharf Road 3175-3337, Napa
- Napa Valley Vine Trail, Napa
- Sears Point Road 100-138, Novato
Campgrounds
- Browers Garden Camping - No Reservation Needed
- Rowser Garden Camping (No Reservation Needed)
- Skyline Wilderness County Park
- Napa Valley Expo
- Wee-Ta-Chi
- Maud Whalen
Fishing spots
- 9th Street Boat Ramp
- City Of Benicia Fishing Pier
- San Pablo Reservoir
- Lafayette Reservoir
- Berkeley Yacht Harbor
- Lake Temescal
Paddle runs
- Headwaters To Mouth
- 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.
- Olema Ranch Campground To Caltrans Corporation Yard At Point Reyes Station
- Cache Creek
Track Fleming Hill 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 Fleming Hill No. 2
Where does the data for Fleming Hill 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 Fleming Hill No. 2.