Dam Report

Little Schuylkill River (Pa-422) dam

Pennsylvania, USA Little Schuylkill River Hazard High
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Tonight low
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Dam height
87ft
Hazard rating
High
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Little Schuylkill River (Pa-422) -- None dam
Little Schuylkill River (Pa-422) None · Little Schuylkill River
About this dam

Little Schuylkill River (Pa-422)

The Little Schuylkill River (Pa-422) is a vital water resource in Pennsylvania, managed by local government authorities and designed by the USDA NRCS. This river is regulated by the Pennsylvania Department of Environmental Protection, with state permitting, inspection, and enforcement in place to ensure its proper management and maintenance. Situated in Rush Township, Schuylkill County, this river serves a primary purpose of flood risk reduction, with an earth dam standing at a height of 87 feet and a length of 700 feet.

Completed in 1968, the Little Schuylkill River dam has a storage capacity of 6000 acre-feet and covers a drainage area of 15.6 square miles. With a high hazard potential and a satisfactory condition assessment, regular inspections are conducted to ensure the safety and reliability of this structure. Although no Emergency Action Plan (EAP) has been prepared yet, the dam meets guidelines and is actively managed to mitigate risks and ensure proper risk management measures are in place.

Water resource and climate enthusiasts will appreciate the significance of the Little Schuylkill River (Pa-422) as a key flood risk reduction infrastructure in Pennsylvania. Its strategic location and design by the Natural Resources Conservation Service highlight the importance of sustainable water management practices in safeguarding communities against potential hazards. With ongoing monitoring and maintenance, this dam continues to play a critical role in protecting the surrounding area and enhancing resilience to climate-related challenges.

StateNone
River / streamLittle Schuylkill River
NID IDPA00655
Owner typeLocal Government
Primary purposeFlood Risk Reduction
Dam typeEarth
Year built1968
Dam height87 ft
Dam length700 ft
Max storage6,000 AF
Drainage area15.6 sq mi
Hazard potentialHigh
ConditionSatisfactory
Last inspectionTue, 03 Nov 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 Little Schuylkill River (Pa-422) -- inflows here typically show up in storage 24-72 hours later.

Track Little Schuylkill River (Pa-422) 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 Little Schuylkill River (Pa-422)

Where does the data for Little Schuylkill River (Pa-422) 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.