Dam Report

Warren dam

Virginia, USA Shenandoah Hazard Low
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Dam height
15ft
Hazard rating
Low
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Warren                                                            -- None dam
Warren None · Shenandoah
About this dam

Warren

Warren is a captivating hydroelectric dam located in Warren, Virginia, just a stone's throw away from the Shenandoah River. This impressive structure, completed in 1924, stands at a height of 15 feet and boasts a hydraulic height of 18 feet. The dam stretches an impressive 514 feet in length and has a storage capacity of 900 acre-feet, with a surface area of 210 acres. Operated by a public utility, Warren serves as a vital source of renewable energy in the region, managed by the Federal Energy Regulatory Commission.

With a low hazard potential and a moderate risk assessment rating, Warren is a crucial component of the local water resource infrastructure. Despite its age, the dam has stood the test of time and is regularly inspected to ensure its safety and reliability. The dam features an uncontrolled spillway with a width of 470 feet, showcasing its robust design and engineering. In the event of an emergency, Warren is equipped with an Emergency Action Plan, last revised in November 2020, to ensure swift and coordinated response protocols.

Warren's significance extends beyond its hydroelectric capabilities, serving as a key landmark in the picturesque Shenandoah Shores Village. With its rich history, impressive design, and crucial role in water resource management, Warren stands as a testament to the enduring legacy of sustainable energy infrastructure in Virginia. For water resource and climate enthusiasts, Warren offers a fascinating glimpse into the intersection of technology, nature, and innovation in the quest for a greener future.

StateNone
River / streamShenandoah
NID IDVA187008
Owner typePublic Utility
Primary purposeHydroelectric
Dam typeButtress
Year built1924
Dam height15 ft
Dam length514 ft
Max storage900 AF
Normal storage900 AF
Surface area210.0 ac
Drainage area2,678.0 sq mi
Hazard potentialLow
ConditionNot Available
Last inspectionTue, 12 Sep 2017 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 Warren -- inflows here typically show up in storage 24-72 hours later.

Track Warren 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 Warren

Where does the data for Warren 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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Premium feature

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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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