Dam Report

Coleman Reservoir Dam dam

Nevada, USA Coleman Creek Hazard Low
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Dam height
23ft
Hazard rating
Low
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Coleman Reservoir Dam -- None dam
Coleman Reservoir Dam None · Coleman Creek
About this dam

Coleman Reservoir Dam

The Coleman Reservoir Dam, located in Washoe, Nevada, serves as a vital water resource for irrigation purposes in the region. This private-owned earth dam stands at a height of 23 feet and has a storage capacity of 450 acre-feet, with a normal storage capacity of 300 acre-feet. The dam, built on Coleman Creek, is regulated by the Nevada Department of Water Resources and undergoes regular inspections to ensure its safety and functionality.

Despite its low hazard potential, the Coleman Reservoir Dam is rated as having a poor condition assessment as of July 2017. The dam features an uncontrolled spillway and one slide (sluice gate) outlet gate. Although the risk assessment deems the dam's risk level as moderate, there is a lack of detailed information on specific risk management measures in place. The dam's location and purpose make it a crucial infrastructure for sustaining agricultural activities and providing fire protection, stock watering, and small fish pond maintenance in the area.

Overall, the Coleman Reservoir Dam stands as a significant piece of infrastructure in the region, ensuring water availability for irrigation and other essential purposes. As water resource and climate enthusiasts, understanding the condition and functioning of such dams is crucial for preserving water security and resilience in the face of changing climatic conditions. Continued monitoring and maintenance of the Coleman Reservoir Dam will be vital to safeguard its structural integrity and prevent potential hazards to the surrounding community and environment.

StateNone
River / streamColeman Creek
NID IDNV00013
Owner typePrivate
Primary purposeIrrigation
Dam typeEarth
Dam height23 ft
Dam length100 ft
Max storage450 AF
Normal storage300 AF
Surface area30.0 ac
Drainage area90.0 sq mi
Hazard potentialLow
ConditionPoor
Last inspectionMon, 17 Jul 2017 12:00:00 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 Coleman Reservoir Dam -- inflows here typically show up in storage 24-72 hours later.

StreamgaugeDischargeView
Mahogany Creek Near Summit Lake 2 cfs

Track Coleman Reservoir 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 Coleman Reservoir Dam

Where does the data for Coleman Reservoir 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 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.

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