Dam Report

Green Lake Dam dam

North Carolina, USA Cape Fear River-Os Hazard Low
Today high
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Tonight low
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Dam height
52ft
Hazard rating
Low
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Green Lake Dam -- None dam
Green Lake Dam None · Cape Fear River-Os
About this dam

Green Lake Dam

Green Lake Dam, located in Elizabethtown, North Carolina, is a private-owned structure with a primary purpose of recreation. Completed in 1960, this earth dam stands at a structural height of 52 feet and has a hydraulic height of 10 feet. The dam has a storage capacity of 572 acre-feet and covers a surface area of 150 acres, offering a serene spot for water enthusiasts and outdoor lovers to enjoy.

Managed by the NC Department of Environmental Quality's Dam Safety Program, Green Lake Dam is regulated, permitted, inspected, and enforced by state agencies to ensure its safety and compliance with regulations. The dam has a low hazard potential and is currently in fair condition, last assessed in June 2017. Despite its age, the dam continues to provide a safe and enjoyable recreational space for locals and visitors alike, contributing to the conservation and preservation of water resources in the area.

With its peaceful surroundings and recreational opportunities, Green Lake Dam on the Cape Fear River-Os is a vital piece of infrastructure that not only enhances the local ecosystem but also serves as a valuable water resource for the community. As climate and water resource enthusiasts, understanding the importance of structures like Green Lake Dam in maintaining a balance between conservation and recreation is crucial for sustainable water management practices in the region.

StateNone
River / streamCape Fear River-Os
NID IDNC01175
Owner typePrivate
Primary purposeRecreation
Dam typeEarth
Year built1960
Dam length8,448 ft
Max storage137 AF
Normal storage572 AF
Surface area150.0 ac
Hazard potentialLow
ConditionFair
Last inspectionTue, 13 Jun 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 Green Lake Dam -- inflows here typically show up in storage 24-72 hours later.

Track Green 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 Green Lake Dam

Where does the data for Green 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 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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