Dam Report

60 Foot Dam dam

New York, USA Sixmile Creek Hazard High
Today high
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Tonight low
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Dam height
75ft
Hazard rating
High
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60 Foot Dam -- None dam
60 Foot Dam None · Sixmile Creek
About this dam

60 Foot Dam

The 60 Foot Dam, also known as Ithaca Reservoir or Potters Falls Dam, is a crucial water supply structure located in Ithaca, New York. Constructed in 1911, this arch dam stands at a height of 75 feet and has a length of 220 feet, providing storage capacity of up to 1290 acre-feet. Situated on the Sixmile Creek, the dam plays a key role in managing water resources in the region, with a primary purpose of water supply.

Despite its significant role, the 60 Foot Dam is facing challenges with a poor condition assessment and a high hazard potential. Regular inspections are conducted, with the last one dated back to November 2018. The dam's emergency action plan is in need of updates, and risk management measures are required to address the moderate risk level associated with the structure. As a state-regulated dam, the New York State Department of Environmental Conservation oversees its permitting, inspection, and enforcement activities.

For water resource and climate enthusiasts, the 60 Foot Dam represents a historic and vital infrastructure in the Tompkins County area. With its architectural significance as an arch dam and its impact on water supply for the community, the dam serves as a focal point for understanding the challenges and importance of maintaining aging infrastructure in the face of changing climate conditions. Addressing the dam's condition assessment, hazard potential, and risk management measures are essential steps towards ensuring its continued function and safety for the surrounding area.

StateNone
River / streamSixmile Creek
NID IDNY00378
Owner typeLocal Government
Primary purposeWater Supply
Dam typeArch
Year built1911
Dam height75 ft
Dam length220 ft
Max storage1,290 AF
Normal storage800 AF
Surface area47.0 ac
Drainage area45.6 sq mi
Hazard potentialHigh
ConditionPoor
Last inspectionMon, 26 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 60 Foot Dam -- inflows here typically show up in storage 24-72 hours later.

Track 60 Foot 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 60 Foot Dam

Where does the data for 60 Foot 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.