Dam Report

Windmill Plantation Lake Dam dam

Georgia, USA Unknown Hazard High
Today high
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Tonight low
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Dam height
40ft
Hazard rating
High
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Windmill Plantation Lake Dam -- None dam
Windmill Plantation Lake Dam None · Unknown
About this dam

Windmill Plantation Lake Dam

Windmill Plantation Lake Dam, located in Evans, Georgia, is a privately owned structure designed by Dan McGill, P.E. The dam, completed in 1985, serves the primary purpose of recreation, offering a surface area of 35 acres for leisure activities. With a height of 40 feet and a hydraulic height of 36 feet, the dam has a storage capacity of 510 acre-feet and a normal storage level of 390 acre-feet, providing water resource and climate enthusiasts with a valuable recreational resource.

Managed by the Georgia Safe Dams Program, Windmill Plantation Lake Dam is classified as a high hazard potential structure due to its condition assessment being listed as "not rated." Despite this, the dam has been inspected regularly, with the most recent inspection conducted in April 2019. While the risk assessment for the dam is moderate, further risk management measures have not been specified. The dam's spillway type is uncontrolled, with uncontrolled outlet gates, posing potential challenges in managing water flow during high discharge events.

With its picturesque location and ample storage capacity, Windmill Plantation Lake Dam offers a unique recreational experience for visitors in Columbia County, Georgia. As a privately owned structure managed by the state regulatory agency, the dam plays a crucial role in providing recreational opportunities while also posing challenges in terms of potential hazards and risk management. For water resource and climate enthusiasts, the dam serves as a fascinating example of the intersection between human-made infrastructure and natural ecosystems, highlighting the importance of sustainable water management practices in the face of changing climate conditions.

StateNone
River / streamUnknown
NID IDGA04169
Owner typePrivate
Primary purposeRecreation
Dam typeEarth
Year built1985
Dam height40 ft
Dam length1,455 ft
Max storage510 AF
Normal storage390 AF
Surface area35.0 ac
Drainage area325.0 sq mi
Hazard potentialHigh
ConditionNot Rated
Last inspectionThu, 25 Apr 2019 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 Windmill Plantation Lake Dam -- inflows here typically show up in storage 24-72 hours later.

Track Windmill Plantation Lake 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 Windmill Plantation Lake Dam

Where does the data for Windmill Plantation Lake 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 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.

Premium feature

Favorites and alerts are part of Snoflo Premium. Save reservoirs, set storage thresholds, and get push notifications when conditions cross.

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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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