E. Beckwith #1 dam
E. Beckwith #1
E. Beckwith #1, also known as Lost Lake Slough, is a privately owned irrigation dam located in Gunnison, Colorado. Constructed in 1935, this earth dam stands at a height of 20 feet with a hydraulic height of 41 feet and a structural height of 43 feet. It serves primarily for irrigation purposes, with a storage capacity of 864 acre-feet and a normal storage level of 360 acre-feet. The dam is situated on Anthracite Creek-Tr, with a drainage area of 1 square mile and a maximum discharge of 600 cubic feet per second.
Despite its low hazard potential, the condition assessment of E. Beckwith #1 is rated as fair, with the last inspection conducted in July 2015. The dam has no spillway and is equipped with slide and uncontrolled outlet gates. The risk assessment for this structure is classified as high (2), indicating the need for ongoing monitoring and potential risk management measures. As a key element in the local water resource infrastructure, E. Beckwith #1 represents a critical component in the management of water resources 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 E. Beckwith #1 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Muddy Creek At Bardine | 94 cfs | → |
| North Fork Gunnison River Near Somerset | 924 cfs | → |
| Minnesota Creek Near Paonia | 4 cfs | → |
| Hubbard Creek At Highway 133 At Mouth Nr Bowie | 5 cfs | → |
| East River Bl Cement Creek Nr Crested Butte | 728 cfs | → |
| Hubbard Creek Above Iron Point Gulch Nr Bowie | 6 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near E. Beckwith #1.
Boat launches
- Bear Road Gunnison County
- Grand Avenue Delta County
- Ponderosa Campground Gunnison County
- South Bank Day Use Area/ Boat Access- Gunnison Rd
- Boat Ramp Road Gunnison County
- Us 50 Gunnison County
Campgrounds
- Lost Lake
- Lost Lake Campground-Paonia Rd
- Horse Ranch Park (Dispersed)-Paonia Rd
- Lake Irwin
- Lake Irwin Campground - Gunnison Rd
- Erickson Springs Campground- Paonia Rd
Fishing spots
- Meridian Lake
- Lake Irwin
- Paonia Reservoir
- Emerald Lake (Crested Butte)
- Beaver Lake Swa (Marble)
- Crawford Reservoir
Paddle runs
- Deep Creek
- Oh Be Joyful
- Waterfall To Confluence
- Bogan Canyon
- South Fork--Headwaters To Beaver Lake
- Crystal Mill Falls
More reservoirs
Track E. Beckwith #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 E. Beckwith #1
Where does the data for E. Beckwith #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 E. Beckwith #1.