Dam Report

Crawford Dam dam

Virginia, USA Hazard Undetermined
Today high
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Tonight low
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Dam height
15ft
Hazard rating
Undetermined
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Crawford Dam -- None dam
Crawford Dam None
About this dam

Crawford Dam

Located in Powhatan, Virginia, Crawford Dam is a private-owned structure regulated by the Department of Conservation and Recreation. Standing at a height of 15.25 feet with a storage capacity of 143.41 acre-feet, this dam plays a crucial role in water resource management in the region. While its hazard potential is currently undetermined and its condition is not rated, Crawford Dam undergoes regular inspections to ensure its safety and functionality.

Despite lacking specific information on its construction year and purposes, Crawford Dam serves as a vital infrastructure for water storage and flood control in the Norfolk District. With a normal storage capacity of 51.8 acre-feet and a surface area of 15.7 acres, this dam plays a pivotal role in managing water resources in the area. Its location at a latitude of 37.5985 and longitude of -77.8623 further solidifies its importance in the region's water infrastructure.

While details on the dam's design and construction remain unclear, Crawford Dam's significance in water resource management cannot be understated. As climate change continues to impact water availability and quality, structures like Crawford Dam will play an essential role in ensuring a sustainable water supply for the community. Its state-regulated status and regular inspections highlight the commitment to maintaining the safety and functionality of this crucial water resource infrastructure.

StateNone
NID IDVA145071
Owner typePrivate
Dam height15 ft
Dam length320 ft
Max storage143 AF
Normal storage52 AF
Surface area15.7 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 Crawford Dam -- inflows here typically show up in storage 24-72 hours later.

Track Crawford 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 Crawford Dam

Where does the data for Crawford 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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