Mc Cormick #1 dam
Mc Cormick #1
Mc Cormick #1 is a privately owned dam located in Hooper, Colorado, along the Rio Grande-Os river. Completed in 1972, this earth dam stands at a height of 11 feet and has a length of 3750 feet. Its primary purpose is irrigation, with additional functions including fire protection, stock, and small fish pond management.
The dam has a storage capacity of 82 acre-feet, with a normal storage level of 61 acre-feet. Despite being rated as having a low hazard potential, it is considered to have a high risk level with a risk assessment of 2. The last inspection of Mc Cormick #1 took place in August 1986, with an inspection frequency of every 6 years.
Although the condition of the dam is currently not rated, it is regulated, permitted, inspected, and enforced by the Colorado Division of Water Resources. With its strategic location and crucial role in irrigation and water management, Mc Cormick #1 serves as a significant asset in the water resource infrastructure of Saguache County, Colorado.
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 Mc Cormick #1 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Carnero Creek Near La Garita | 2 cfs | → |
| La Garita Creek Near La Garita | 3 cfs | → |
| Rio Grande Near Monte Vista | 172 cfs | → |
| Rio Grande Near Del Norte | 780 cfs | → |
| San Francisco C At Upper Sta | 2 cfs | → |
| Saguache Creek Near Saguache | 30 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Mc Cormick #1.
Campgrounds
- Penitente Canyon Site 20
- Penitente Canyon Site 21
- Penitente
- Penitente Canyon Site 22
- Penitente Canyon Site 23
- Penitente Canyon Site 24
Fishing spots
- Home Lake
- Rio Grande Swa
- San Luis Lake
- Million Reservoir Fishing Site
- Beaver Creek Reservoir
- Poage Lake Fishing Site
Paddle runs
- Confluence Of North, Middle And South Forks (Sec 4, T43n, R3e) To Nf Boundary (Sec 17, T44n, R4e)
- Below Big Meadows Reservoir Dam To Sec 9 And 10, T39n, R3e
- Sec 30, T41n, R2e To Sec 11, T40n, R2e
- Eastern Boundary Of Park To Western Park Boundary
- Headwaters At Indian Spring To Ends Where The Creek Is Diverted Into Irrigation Ditches
- Mountain Front To Western Park Boundary
More reservoirs
Track Mc Cormick #1 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 Mc Cormick #1
Where does the data for Mc Cormick #1 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 Mc Cormick #1.