Union Pond Dam dam
Union Pond Dam
Union Pond Dam, also known as Union Pond Aka Anabel Pond, is a private water supply dam located in Stamford, Fairfield County, Connecticut. The dam, primarily made of masonry, stands at a height of 16 feet and spans a length of 77 feet. Its main purpose is to provide water supply, with a normal storage capacity of 0 acre-feet and a surface area of 1.5 acres. The dam is situated on the EAST BR MIANUS RIVER and falls under the regulatory oversight of the Connecticut Department of Energy and Environmental Protection (DEEP).
With a significant hazard potential and a condition assessment currently marked as "Not Rated," Union Pond Dam is subject to regular inspections every 7 years to ensure its structural integrity and safety. The dam does not have an Emergency Action Plan (EAP) in place as of the latest data update in March 2021, and additional risk management measures have not been specified. The spillway width of the dam is 30 feet, indicating its capacity to handle excess water flow during periods of high discharge.
For water resource and climate enthusiasts, Union Pond Dam presents an intriguing case study in the management and regulation of private dams for water supply purposes. Its location in a densely populated area like Stamford underscores the importance of maintaining the infrastructure's safety and resilience in the face of potential hazards. As efforts continue to monitor and assess the dam's condition, stakeholders and regulators will play a crucial role in ensuring the long-term sustainability of this vital water resource.
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.
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.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
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.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Union Pond Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Fivemile River Near New Canaan | 0 cfs | → |
| Rippowam River At Stamford | 7 cfs | → |
| Cross River Near Cross River Ny | 8 cfs | → |
| Norwalk R At South Wilton | 10 cfs | → |
| Cross River At Katonah Ny | 12 cfs | → |
| Saugatuck R Nr Westport | 18 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Union Pond Dam.
Boat launches
- Maple Way 10, Town Of North Castle
- Seagate Road 3, Greenwich
- Saugatuck River
- Roosevelt Road Westport
- Hillspoint Road Westport
- Croton Riverwalk Croton-On-Hudson
Campgrounds
- Ward Pound Ridge Reservation
- Mountain Lakes Park
- Croton Point Park
- Youth Camp Ii
- Youth Camp Iii
- Youth Camp I
Fishing spots
Paddle runs
- Kent Bridge To Boardman Bridge
- Pond Downstream Of Shepaug Reservoir Dam, Marked By Service Road Bridge To Ends In Backwaters Of Lake Lillinonah, Near Roxbury Falls
- Begins Downstream Of The Borough Of Bantam, At Stoddard Road Bridge To The Confluence With The Shepaug River
Track Union 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.
About Union Pond Dam
Where does the data for Union 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.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Union Pond Dam.