Dam Report

Mirror Pool Wma #2 dam

North Dakota, USA Sheyenne River-Tr Hazard Low
Today high
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Tonight low
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Dam height
9ft
Hazard rating
Low
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Mirror Pool Wma #2 -- None dam
Mirror Pool Wma #2 None · Sheyenne River-Tr
About this dam

Mirror Pool Wma #2

Mirror Pool Wma #2 is a state-owned fish and wildlife pond located in Ransom County, North Dakota. Built in 1989 by DU & NDGF, this Earth dam structure stands at 8.5 feet high with a storage capacity of 139 acre-feet. The dam serves as a habitat for various aquatic species and covers a surface area of 11.2 acres within a drainage area of 8.95 square miles.

Managed by the North Dakota State Water Commission, Mirror Pool Wma #2 is regulated, permitted, inspected, and enforced by state agencies to ensure its safety and functionality. With a low hazard potential and a moderate risk assessment rating of 3, the dam has not been rated for its current condition. Despite its uncontrolled spillway type and lack of outlet gates, the structure poses minimal risk to surrounding areas and has not undergone recent modifications or inspections.

For water resource and climate enthusiasts, Mirror Pool Wma #2 serves as a vital ecosystem for fish and wildlife conservation in North Dakota. Its location along the Sheyenne River-TR and its stone core foundation highlight the importance of sustainable water management practices in preserving natural habitats and enhancing biodiversity. As a designated state-regulated recreational site, the dam provides a glimpse into the intersection of environmental conservation and water resource management within the region.

StateNone
River / streamSheyenne River-Tr
NID IDND00578
Owner typeState
Primary purposeFish And Wildlife Pond
Dam typeEarth
Year built1989
Dam height9 ft
Max storage139 AF
Normal storage25 AF
Surface area11.2 ac
Drainage area9.0 sq mi
Hazard potentialLow
ConditionNot Rated

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 Mirror Pool Wma #2 -- inflows here typically show up in storage 24-72 hours later.

Track Mirror Pool Wma #2 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 Mirror Pool Wma #2

Where does the data for Mirror Pool Wma #2 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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Snoflo-tracked reservoirs and dams within driving distance of Mirror Pool Wma #2.

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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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