Dam Report

Summit - South Dam dam

Colorado, USA East Fork Mud Creek-Os Hazard High
Today high
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Tonight low
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Dam height
10ft
Hazard rating
High
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Summit - South Dam -- None dam
Summit - South Dam None · East Fork Mud Creek-Os
About this dam

Summit - South Dam

Summit - South Dam, located in Montezuma County, Colorado, is a privately owned structure primarily used for irrigation purposes. Completed in 1937, this earth dam stands at a height of 10 feet and spans 1600 feet in length, with a storage capacity of 3840 acre-feet. The dam serves multiple purposes including fish and wildlife pond creation and recreational activities, making it an essential resource for the local community.

Despite its fair condition assessment, Summit - South Dam has a high hazard potential, with a moderate risk rating. The dam is regulated and inspected by the Colorado Department of Water Resources, ensuring that it meets safety standards. The spillway, with a width of 40 feet, is uncontrolled, and the dam has a maximum discharge capacity of 650 cubic feet per second, making it crucial to monitor and maintain the structure to prevent any potential risks to downstream areas.

With its location in the East Fork Mud Creek Watershed, Summit - South Dam plays a vital role in water management and conservation efforts in the region. As a key component of the local irrigation system, this dam contributes to the sustainability of agriculture and ecosystems in the area. It serves as a reminder of the importance of maintaining and monitoring water resources to ensure the safety and well-being of surrounding communities and the environment.

StateNone
River / streamEast Fork Mud Creek-Os
NID IDCO02882
Owner typePrivate
Primary purposeIrrigation
Dam typeEarth
Year built1937
Dam height10 ft
Dam length1,600 ft
Max storage3,840 AF
Normal storage2,234 AF
Surface area402.0 ac
Drainage area2.0 sq mi
Hazard potentialHigh
ConditionFair
Last inspectionWed, 07 Oct 2020 00:00:00 GMT

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.
Detailed forecast

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.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

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.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

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Regional inflow

Nearby streamflow gauges

USGS streamgauges around Summit - South Dam -- inflows here typically show up in storage 24-72 hours later.

Track Summit - South Dam 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.

FAQ

About Summit - South Dam

Where does the data for Summit - South Dam 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.

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Manage alerts in the Snoflo app

Custom alerts are configured in the iOS app -- favorite this dam, set a threshold, and you'll get a push the moment conditions cross.

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