Defense Plant Corp Pond Dam (Mill #7) dam
Defense Plant Corp Pond Dam (Mill #7)
The Defense Plant Corp Pond Dam, also known as Mill #7, is a privately owned structure located in Port Henry, New York, along Bartlett Brook. Built in 1942, this earth dam stands at a height of 25 feet and has a length of 250 feet, with a storage capacity of 150 acre-feet. Despite being categorized as having a low hazard potential, it has a moderate risk assessment rating of 3.
The dam is regulated by the New York State Department of Environmental Conservation (NYS DEC), with state permitting, inspection, and enforcement in place. In the event of an emergency, the dam's Emergency Action Plan (EAP) status is unknown, with no information available on its preparedness or risk management measures. The last inspection was conducted in July 2017, with the condition assessment listed as "Not Rated."
Water resource and climate enthusiasts interested in the Defense Plant Corp Pond Dam can appreciate its historical significance as a relic from World War II and its role in water management along Bartlett Brook. With its unique spillway design and location in Essex County, New York, this dam serves as a reminder of the importance of maintaining and monitoring infrastructure to mitigate potential risks and ensure public safety.
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 Defense Plant Corp Pond Dam (Mill #7) -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Putnam Creek East Of Crown Point Center Ny | 373 cfs | → |
| Little Otter Creek At Ferrisburg | 45 cfs | → |
| New Haven River At Brooksville Nr Middlebury | 196 cfs | → |
| Otter Creek At Middlebury | 874 cfs | → |
| Lewis Creek At North Ferrisburg | 130 cfs | → |
| Bouquet River At Willsboro Ny | 333 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Defense Plant Corp Pond Dam (Mill #7).
Boat launches
- Port Henry Boat Launch
- Bulwagga Drive Port Henry
- Bridge Road Essex County
- Vt 125 Addison
- Vt 17 Addison
- Westport Boat Launch
Campgrounds
- Port Henry Village Campground
- Bulwagga Bay Campground
- D.A.R State Park
- Dar State Park
- Crown Point - Dec
- Lincoln Pond - Dec
Fishing spots
Track Defense Plant Corp Pond Dam (Mill #7) 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 Defense Plant Corp Pond Dam (Mill #7)
Where does the data for Defense Plant Corp Pond Dam (Mill #7) 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 Low 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 Defense Plant Corp Pond Dam (Mill #7).