Regan dam
Regan
Regan is a private fish and wildlife pond located in Hinsdale, Colorado, specifically in South Fork. This earth dam structure was completed in 1906 and has a height of 17 feet and a length of 80 feet, providing a storage capacity of 1007 acre-feet. The dam serves multiple purposes, including fish and wildlife preservation and recreational activities, with a surface area of 141 acres and a drainage area of 1 square mile.
Despite being classified as having a low hazard potential, Regan is deemed to have a high risk due to specific factors, as evaluated in a risk assessment. The dam's condition assessment in 2014 rated it as fair, and it has a regular inspection frequency of every 6 years. The structure does not have a spillway and is not associated with any locks or outlet gates. Although the dam meets state regulations and permitting requirements, it lacks certain emergency preparedness measures, such as an Emergency Action Plan (EAP) and inundation maps.
For water resource and climate enthusiasts, Regan presents an intriguing case study of a century-old earth dam serving as a vital habitat for fish and wildlife in the House Canyon Creek watershed. The dam's historical significance, combined with its risk assessment results and emergency preparedness gaps, highlight the ongoing challenges and opportunities in managing and maintaining aging infrastructure for environmental conservation and public safety in Colorado's diverse landscape.
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 Regan -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Rio Grande At Thirtymile Bridge | 949 cfs | → |
| North Clear Creek Bl Continental Reservoir | 17 cfs | → |
| Lake Fork Blw Lake San Cristobal Nr Lake City | 147 cfs | → |
| Animas River At Howardsville | 262 cfs | → |
| Rio Grande At Wagon Wheel Gap | 1,290 cfs | → |
| Goose Creek At Wagonwheel Gap | 131 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Regan.
Boat launches
- Cr 10 Hinsdale County
- Cr 11 Hinsdale County
- Rito Hondo Reservoir Boating Site
- Devil's Creek Bridge Boat Ramp
Campgrounds
Fishing spots
- Road Canyon Dam Fishing Site
- Road Canyon Reservoir Number 1
- Road Canyon Reservoir
- Brown Lakes Swa
- Continental Reservoir
- Continental Reservoir Fishing Site
Paddle runs
- Below Rio Grande Reservoir (Sec 13, T40n, R4w) To Spring Creek (Sec 31, T41n, R2w)
- Snowslide Canyon Creek--Headwaters To Confluence With Los Pinos
- Rincon La Vaca--Headwaters To Confluence With Los Pinos
- Rincon La Osa--Headwaters To Confluence With Los Pinos
- Sierra Vandera--Headwaters To Confluence With Los Pinos
- Flint Creek--Headwaters To Confluence With Los Pinos
More reservoirs
Track Regan 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 Regan
Where does the data for Regan 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 Regan.