Dam Report

Rankin Lake Dam dam

North Carolina, USA Long Creek-Os Hazard Significant
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Tonight low
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Dam height
11ft
Hazard rating
Significant
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Rankin Lake Dam -- None dam
Rankin Lake Dam None · Long Creek-Os
About this dam

Rankin Lake Dam

Rankin Lake Dam, located in Gastonia, North Carolina, is a crucial water supply infrastructure owned by the local government. Built in 1925, this Earth-type dam stands at a structural height of 11 feet and has a length of 3105 feet, providing a storage capacity of 461 acre-feet. The dam serves the primary purpose of water supply for the surrounding area, with a normal storage capacity of 384 acre-feet and a surface area of 80 acres.

With a significant hazard potential, Rankin Lake Dam has not been rated for its condition assessment as of the last inspection in November 2018. Despite its age, the dam remains operational and is regularly inspected by the state authorities. Situated on Long Creek-Os, the dam plays a crucial role in managing water resources in the region, highlighting the importance of maintaining and monitoring such vital infrastructure for water supply and climate resilience. For water resource and climate enthusiasts, Rankin Lake Dam serves as a reminder of the essential role dams play in ensuring water security and mitigating the impacts of climate change.

StateNone
River / streamLong Creek-Os
NID IDNC01208
Owner typeLocal Government
Primary purposeWater Supply
Dam typeEarth
Year built1925
Dam length3,105 ft
Max storage461 AF
Normal storage384 AF
Surface area80.0 ac
Drainage area192.0 sq mi
Hazard potentialSignificant
ConditionNot Rated
Last inspectionWed, 28 Nov 2018 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 Rankin Lake Dam -- inflows here typically show up in storage 24-72 hours later.

Track Rankin 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 Rankin Lake Dam

Where does the data for Rankin 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 Significant 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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