Dam Report

Maple Lake dam

Pennsylvania, USA Rattlesnake Creek Hazard High
Today high
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Tonight low
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Dam height
23ft
Hazard rating
High
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Maple Lake -- None dam
Maple Lake None · Rattlesnake Creek
About this dam

Maple Lake

Maple Lake in Lackawanna, Pennsylvania, is a privately owned water supply dam completed in 1893 on Rattlesnake Creek. With a height of 23 feet and a storage capacity of 1151 acre-feet, Maple Lake serves as a vital resource for the surrounding community. The dam has a surface area of 99 acres and a drainage area of 1 square mile, ensuring a reliable source of water for its users.

Despite being classified as having a high hazard potential, Maple Lake is in fair condition and undergoes regular inspections by the Pennsylvania Department of Environmental Protection. The dam's purpose is primarily for water supply, and it plays a crucial role in providing water to the region. The dam's emergency action plan status and risk management measures are currently unspecified, highlighting the need for ongoing monitoring and maintenance to ensure the safety and security of the structure.

Located in Spring Brook Township and owned by a private entity, Maple Lake stands as a testament to the importance of water resource management in the face of climate change and increasing demands for water supply. With its historical significance and critical role in the local ecosystem, Maple Lake serves as a reminder of the intricate balance between water resources and environmental stewardship in the modern world.

StateNone
River / streamRattlesnake Creek
NID IDPA00294
Owner typePrivate
Primary purposeWater Supply
Dam typeEarth
Year built1893
Dam height23 ft
Dam length490 ft
Max storage1,151 AF
Normal storage657 AF
Surface area99.0 ac
Drainage area1.0 sq mi
Hazard potentialHigh
ConditionFair
Last inspectionFri, 12 Jun 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 Maple Lake -- inflows here typically show up in storage 24-72 hours later.

Track Maple Lake 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 Maple Lake

Where does the data for Maple Lake 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.