Null Dam dam
Null Dam
Null Dam, located in Manton, California, is a privately owned structure that plays a crucial role in water supply, irrigation, and recreation in the area. Completed in 1954, this earth dam stands at a height of 54 feet and has a storage capacity of 188 acre-feet, serving the needs of the community and ensuring water availability for various purposes. Managed by the Department of Water Resources and regulated by the Safety of Dams, Null Dam is subject to regular inspections to ensure its structural integrity and safety.
With a significant hazard potential but a satisfactory condition assessment as of 2017, Null Dam is a key component of the local water infrastructure. It spans 400 feet in length and is situated on Rock Creek, contributing to a drainage area of 15.3 square miles. The dam's role in water management and its impact on the surrounding environment make it a subject of interest for water resource and climate enthusiasts, as it highlights the importance of sustainable water practices and infrastructure maintenance in the face of changing climate conditions.
Managed by private owners but under state regulation, Null Dam serves as a reminder of the delicate balance between human needs and environmental preservation. Its location in Shasta County, California, and its association with various water-related activities make it a focal point for discussions on water resource management, infrastructure resilience, and the intersection of human development with natural ecosystems. As climate change continues to pose challenges to water availability and quality, structures like Null Dam demonstrate the importance of proactive maintenance and planning to ensure sustainable water management for future generations.
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 Null Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Battle C Bl Coleman Fish Hatchery Nr Cottonwood Ca | 352 cfs | → |
| Hat C Nr Hat Creek Ca | 169 cfs | → |
| Cow C Nr Millville Ca | 183 cfs | → |
| Sacramento R Ab Bend Bridge Nr Red Bluff Ca | 11,200 cfs | → |
| Cottonwood C Nr Cottonwood Ca | 240 cfs | → |
| Mill C Nr Los Molinos Ca | 250 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Null Dam.
Boat launches
- Jelly's Ferry
- Butte Lake Campground
- Sycamore Campground Boat Launch
- Red Bluff Recreation Area, Red Bluff
- Main Street 98, Red Bluff
Campgrounds
- Mt. Lassen / Shingletown Koa Holiday
- Living Springs Campground
- Mccumber Reservoir
- Battle Creek Campground
- Battle Creek
- North Battle Creek Reservoir
Fishing spots
Track Null Dam 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 Null Dam
Where does the data for Null Dam 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 Significant 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 Null Dam.