Coleman dam
Coleman
Located in Monterey, California, the Coleman Dam, also known as Dam #1, serves multiple purposes including fire protection, stock, and small fish pond management. Owned and operated by the US Army, this earth dam stands at a height of 27 feet with a hydraulic height of 20 feet. Completed in 1965, it has a storage capacity of 80 acre-feet and covers a surface area of 11 acres along Coleman Creek.
With a low hazard potential and a moderate risk assessment rating, the Coleman Dam is primarily used for recreational activities and maintaining local wildlife habitats. Despite its age, the dam remains in good condition with inspections conducted every four years by the US Army. The surrounding area, including the city of Jolon, benefits from the water resources provided by this structure, ensuring water availability for various needs while also contributing to the conservation of the local environment.
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 Coleman -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Arroyo Seco Nr Soledad Ca | 24 cfs | → |
| San Antonio R Nr Lockwood Ca | · | → |
| San Lorenzo C Bl Bitterwater C Nr King City Ca | 0 cfs | → |
| Arroyo Seco Bl Reliz C Nr Soledad Ca | · | → |
| Salinas R A Soledad Ca | 209 cfs | → |
| Nacimiento R Bl Sapaque C Nr Bryson Ca | 2 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Coleman.
Boat launches
- New Pleyto Road, Bradley
- Lynch Road, Bradley
- Boat Launch San Luis Obispo County
- West Knoll Circle 10555, San Luis Obispo County
- Well Road San Luis Obispo County
- Mistletoe Lane San Luis Obispo County
Campgrounds
- Old Wagon Cave Campground
- Nacimiento
- Nacimiento Campground
- Carrizo Springs Rustic Campsite
- Abc Camp Rustic Campsite
- Fort Hunter Liggett Primitive Military
Fishing spots
- Lake San Antonio
- Lake Nacimiento
- Nacimiento Lake
- Barney Schwartz Park Lake
- El Estero
- Whale Rock Reservoir
Paddle runs
- Ventana Wilderness Boundary To Nf Boundary
- Headwaters To Sportsman's Club
- 0.25 Milesupstram Of The Impoundment At Sportsman's Lodge To 0.25 Miles Downstream Of The Impoundment At Sportsman's Lodge
- 0.25 Miles Downstream Of The Impoundment Of Sportsman's Lodge To Ventana Wilderness Boundary
- Headwaters North Fork Little Sur To Boy Scout Camp
- San Benito River
More reservoirs
Track Coleman 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 Coleman
Where does the data for Coleman 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 Low 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 Coleman.