Quarry Pits dam
Quarry Pits
Quarry Pits in Fremont, California, is a locally-owned dam structure situated along the Old Alameda Creek. Built in 1997, this Earth dam stands at 26 feet in height and spans a length of 9150 feet, with a storage capacity of 3360 acre-feet. While primarily serving as a tailings facility, Quarry Pits also plays a role in water supply and recreational activities in the area. The dam is state-regulated by the Department of Water Resources (DWR) and undergoes regular inspections to ensure its safety and functionality.
Despite its satisfactory condition assessment as of September 2017, Quarry Pits poses a high hazard potential due to its location and size. The dam's emergency action plan (EAP) status and risk management measures remain unclear, indicating a potential area for improvement in terms of emergency preparedness. With a notable presence in the Sacramento District, Quarry Pits is a significant water resource structure that requires ongoing monitoring and maintenance to mitigate risks and ensure the safety of surrounding communities.
As a key component of the local government's infrastructure, Quarry Pits serves multiple purposes beyond its initial construction for tailings storage. Its location along the Old Alameda Creek highlights its importance in managing water resources in the region. With a history dating back to 1997, this Earth dam continues to play a vital role in water supply, recreation, and environmental preservation efforts in Alameda County.
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 Quarry Pits -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Alameda C Nr Fremont Ca | 34 cfs | → |
| Dry C A Union City Ca | · | → |
| Alameda C Flood Channel A Union City Ca | 40 cfs | → |
| Alameda C Nr Niles Ca | 16 cfs | → |
| Arroyo De La Laguna A Verona Ca | 13 cfs | → |
| San Lorenzo C A Hayward Ca | 3 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Quarry Pits.
⚓ Boat launches
- Chelsea Drive 5094, Newark
- Lake Elizabeth Boat Ramp
- San Francisco Bay Trail East Palo Alto
- Palo Alto Boat Launch
- Santa Clara County
- Whidbey Lane Redwood City
⛺ Campgrounds
- Alameda County Fairgrounds Rv
- 1
- Sunol Regional Wilderness
- Camp Parks Military
- Anthony Chabot Family Campground
- Youth Group Camp Area
🎣 Fishing spots
More fishing →🛶 Paddle runs
- Headwaters To Mouth
- Gold Creek To Three Pools (Opal Creek Run)
- 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
🛡 More reservoirs
More reservoirs →Track Quarry Pits 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 Quarry Pits
Where does the data for Quarry Pits 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 Quarry Pits.