Seeger dam
Seeger
Seeger, also known as Nicasio Reservoir, is a vital water resource located in Marin, California. Owned by a public utility, this dam plays a crucial role in flood risk reduction and water supply management. Built in 1961, Seeger stands at a height of 115 feet and has a storage capacity of 22,400 acre-feet, serving a drainage area of 35.9 square miles along the Nicasio Creek.
Managed by the California Department of Water Resources and regulated by the Safety of Dams program, Seeger has a high hazard potential but is currently in satisfactory condition as per the most recent assessment in September 2017. The dam is regularly inspected, with the last evaluation conducted in January 2021, ensuring its structural integrity and safety for surrounding communities. Located in Pt Reyes Station, Seeger is a critical infrastructure that requires ongoing monitoring and maintenance to mitigate any potential risks associated with its operation.
With its strategic location and crucial role in water resource management, Seeger serves as a key asset in California's infrastructure network. As a significant flood risk reduction structure along the Nicasio Creek, Seeger plays a vital role in safeguarding the local community from potential disasters. Ensuring the continued safety and functionality of Seeger is essential for sustainable water resource management and climate resilience in the region.
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 Seeger -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Lagunitas C Nr Pt Reyes Station Ca | 16 cfs | → |
| Olema C A Vedanta Bridge A Olema Ca | 1 cfs | → |
| Lagunitas C A Sp Taylor State Pk Ca | 14 cfs | → |
| Walker C Nr Marshall Ca | 5 cfs | → |
| Novato C A Novato Ca | 1 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 Seeger.
Boat launches
- Calypso Shores 23, Marin County
- Steven Way 98, Marin County
- Sears Point Road 100-138, Novato
- Marin Rod And Gun Club Pier 2675, San Rafael
- Turney Street Boat Ramp
- Doran Beach Road 355, Bodega Bay
Campgrounds
- Olema Campground
- Orchard Hill Campground
- Madrone Group Camp
- Camp Taylor
- Sky Campground
- Five Brooks Horse Camp
Fishing spots
- Lake Lagunitas
- Bodega Harbor
- Lake Ralphine
- Berkeley Yacht Harbor
- San Pablo Reservoir
- 9th Street Boat Ramp
Paddle runs
- 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.
- Headwaters To Mouth
Track Seeger 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 Seeger
Where does the data for Seeger 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 Seeger.