Dam Report

Hanging Rock State Park Dam dam

North Carolina, USA Cascade Creek-Tr Hazard High
Today high
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Tonight low
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Dam height
38ft
Hazard rating
High
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Hanging Rock State Park Dam -- None dam
Hanging Rock State Park Dam None · Cascade Creek-Tr
About this dam

Hanging Rock State Park Dam

Hanging Rock State Park Dam, located in Stokes, North Carolina, is a concrete gravity dam completed in 1938 primarily for recreational purposes. With a hydraulic height of 33 feet and a structural height of 38 feet, the dam sits along Cascade Creek-Tr, offering a serene backdrop to visitors exploring the park. The dam has a normal storage capacity of 140 acre-feet and a drainage area of 450 square miles, providing essential water resources for the surrounding ecosystem.

Despite its fair condition assessment as of March 2021, Hanging Rock State Park Dam poses a high hazard potential, necessitating regular inspections and maintenance to ensure public safety. The dam's last inspection in March 2021 revealed that it meets state regulations and is subject to oversight by the North Carolina Department of Environmental Quality's Dam Safety Program. With a storage capacity of 290 acre-feet and a maximum discharge of 1855 cubic feet per second, the dam plays a crucial role in water management and conservation efforts in the region.

As water resource and climate enthusiasts explore Hanging Rock State Park, they can appreciate the engineering marvel of the dam and its significance in providing recreational opportunities, maintaining ecological balance, and safeguarding against potential hazards. With its picturesque setting and historical importance, the dam serves as a reminder of the delicate balance between human development and environmental stewardship in managing water resources for future generations.

StateNone
River / streamCascade Creek-Tr
NID IDNC00342
Owner typeState
Primary purposeRecreation
Dam typeConcrete
Year built1938
Dam length190 ft
Max storage290 AF
Normal storage140 AF
Surface area11.9 ac
Drainage area450.0 sq mi
Hazard potentialHigh
ConditionFair
Last inspectionWed, 10 Mar 2021 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 Hanging Rock State Park Dam -- inflows here typically show up in storage 24-72 hours later.

Track Hanging Rock State Park 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 Hanging Rock State Park Dam

Where does the data for Hanging Rock State Park 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.

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Snoflo-tracked reservoirs and dams within driving distance of Hanging Rock State Park Dam.

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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{# FAVORITE-LIMIT MODAL — fires when a non-premium user hits the 3-favorite cap. Mirrors the iOS PremiumGateSheet's .bookmarkLimit case: same copy direction (limit reached → unlimited with Premium), same primary CTA shape. Triggered from toggle_fave (pre-flight) and the 403 error handler. #} {# ALERTS-IN-APP MODAL — opened from the Account dropdown's "Alerts" link. Push-notification alerts (snow / flow / buoy / ski) are managed in the iOS app because they require APNs + device tokens; the webapp has no equivalent surface, so the right thing to do is point users at the App Store. Mirrors the per-gauge #sf-cp-alerts-modal popup on recChildFlow.html. #}