Dam Report

Dry Run Dam #101 dam

Virginia, USA Dry Run Hazard High
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Dam height
67ft
Hazard rating
High
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Dry Run Dam #101 -- None dam
Dry Run Dam #101 None · Dry Run
About this dam

Dry Run Dam #101

Dry Run Dam #101, also known as Lake Arrowhead, is a local government-owned structure located in Page, Virginia. This earth dam, standing at a height of 67 feet and spanning 2100 feet in length, serves primarily for flood risk reduction and water supply purposes along the Dry Run river. With a storage capacity of 1232 acre-feet and a surface area of 34 acres, the dam plays a crucial role in managing the water resources in the region.

Managed by the Department of Conservation and Recreation in Virginia, Dry Run Dam #101 has a high hazard potential but is currently in satisfactory condition, as assessed during the last inspection in July 2020. The dam's emergency action plan, last revised in January 2016, ensures that necessary measures are in place for any potential risks. Despite not being under the jurisdiction of the US Army Corps of Engineers, the dam remains a vital asset for flood control and water management in the area, contributing to the overall resilience of the region's water resources and infrastructure.

Located within the Norfolk District and with Congressman Ben Cline representing the area, Dry Run Dam #101 stands as a testament to effective state-regulated water resource management. With its strategic position and significant impact on flood risk reduction in the region, the dam serves as a critical infrastructure for safeguarding communities and ecosystems against the challenges posed by climate change and water scarcity.

StateNone
River / streamDry Run
NID IDVA139002
Owner typeLocal Government
Primary purposeFlood Risk Reduction
Dam typeEarth
Dam height67 ft
Dam length2,100 ft
Max storage1,232 AF
Normal storage552 AF
Surface area34.0 ac
Drainage area2.6 sq mi
Hazard potentialHigh
ConditionSatisfactory
Last inspectionWed, 08 Jul 2020 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 Dry Run Dam #101 -- inflows here typically show up in storage 24-72 hours later.

Track Dry Run Dam #101 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 Dry Run Dam #101

Where does the data for Dry Run Dam #101 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 High 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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Other water bodies near here

Snoflo-tracked reservoirs and dams within driving distance of Dry Run Dam #101.

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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