Dam Report

Cullen Winter Dam dam

Virginia, USA Hazard Undetermined
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Tonight low
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Dam height
12ft
Hazard rating
Undetermined
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Cullen Winter Dam -- None dam
Cullen Winter Dam None
About this dam

Cullen Winter Dam

Cullen Winter Dam, located in Accomack, Virginia, is a privately owned structure regulated by the Department of Conservation and Recreation. With a height of 11.5 feet and a storage capacity of 143.24 acre-feet, this dam plays a crucial role in water resource management in the region. Despite its undetermined hazard potential and lack of a condition rating, the dam is equipped with emergency action plans to ensure the safety of surrounding areas.

The dam, completed in an unspecified year, spans 500 feet in length and covers a surface area of 15.3 acres. Its primary purpose and design specifics are not provided in the data, but it is evident that the dam serves as a vital infrastructure for water storage and regulation. Situated in the Norfolk District, the Cullen Winter Dam stands as a testament to the intersection of private ownership and state regulatory oversight in the management of water resources.

As water resource and climate enthusiasts delve into the details of the Cullen Winter Dam, they will uncover a complex network of state jurisdiction, inspection protocols, and emergency preparedness measures. While certain aspects of the dam's condition and risk assessment remain unclear, its role in maintaining water storage and regulation in Virginia's Accomack County is undeniable. With ongoing monitoring and adherence to safety guidelines, the Cullen Winter Dam continues to be a key player in the region's water infrastructure landscape.

StateNone
NID IDVA001012
Owner typePrivate
Dam height12 ft
Dam length500 ft
Max storage143 AF
Normal storage55 AF
Surface area15.3 ac
Hazard potentialUndetermined
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 Cullen Winter Dam -- inflows here typically show up in storage 24-72 hours later.

Track Cullen Winter 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 Cullen Winter Dam

Where does the data for Cullen Winter 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 Undetermined 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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