Dam Report

Waldemar Derke Pond Dam dam

New York, USA Tr-Little Delaware River Hazard Significant
Today high
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Tonight low
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Dam height
11ft
Hazard rating
Significant
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Waldemar Derke Pond Dam -- None dam
Waldemar Derke Pond Dam None · Tr-Little Delaware River
About this dam

Waldemar Derke Pond Dam

Waldemar Derke Pond Dam, located in Delaware, New York, was completed in 1963 and serves primarily for recreational purposes. This private Earth dam stands at a height of 11 feet and spans 300 feet in length, with a storage capacity of 57 acre-feet. Despite its small surface area of 9 acres, the dam plays a crucial role in regulating the flow of the TR-Little Delaware River, with a maximum discharge capacity of 549 cubic feet per second.

However, recent assessments have raised concerns about the dam's condition, which has been deemed poor, with a significant hazard potential. The last inspection in January 2019 recommended a more frequent inspection schedule of every 4 years. The dam's spillway, an uncontrolled type with a width of 75 feet, poses additional risks in the event of high water levels. Despite these challenges, the Waldemar Derke Pond Dam remains an integral part of the local ecosystem and a popular recreational spot for visitors.

As advocates for water resource management and climate resilience, enthusiasts are closely monitoring the situation at Waldemar Derke Pond Dam to ensure that necessary risk management measures are implemented promptly. With its critical role in the region's water management system and potential safety risks, there is a growing call for increased attention and investment in the maintenance and upkeep of this essential infrastructure. By staying informed and engaged, enthusiasts can contribute to the sustainable preservation of this important water resource for future generations to enjoy.

StateNone
River / streamTr-Little Delaware River
NID IDNY12570
Owner typePrivate
Primary purposeRecreation
Dam typeEarth
Year built1963
Dam height11 ft
Dam length300 ft
Max storage57 AF
Normal storage15 AF
Surface area9.0 ac
Drainage area0.4 sq mi
Hazard potentialSignificant
ConditionPoor
Last inspectionMon, 07 Jan 2019 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 Waldemar Derke Pond Dam -- inflows here typically show up in storage 24-72 hours later.

Track Waldemar Derke Pond 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 Waldemar Derke Pond Dam

Where does the data for Waldemar Derke Pond 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.