Dieterich Dam #3 dam
Dieterich Dam #3
Dieterich Dam #3, also known as Dieterich Pond, is a private-owned structure situated in Millbrook, New York, along the Wappinger Creek. Built in 1910, this masonry dam stands at 14 feet high and spans 55 feet in length, serving primarily for irrigation purposes. With a storage capacity of 200 acre-feet, including a normal storage level of 110 acre-feet, the dam covers a surface area of 31 acres and drains a 12.6 square mile watershed area.
The dam's spillway, which is uncontrolled and 50 feet wide, can handle a maximum discharge of 925 cubic feet per second. Despite being rated as having a significant hazard potential, the dam's condition assessment remains unrated. Regular inspections are conducted, with the last one taking place in November 2020, following a frequency of 4 inspections per year. The risk assessment for Dieterich Dam #3 is moderate (3), indicating a need for ongoing risk management measures to ensure the safety and stability of the structure.
Located in Dutchess County, New York, this historic dam is regulated by the New York State Department of Environmental Conservation, with enforcement, permitting, and inspection responsibilities falling under state jurisdiction. With its rich history and vital role in the local irrigation network, Dieterich Dam #3 stands as a testament to the importance of water resource management and climate resilience in the region.
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 Dieterich Dam #3 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Tenmile River Near Gaylordsville | 170 cfs | → |
| Wappinger Creek Near Wappingers Falls Ny | 136 cfs | → |
| Housatonic River At Gaylordsville | 953 cfs | → |
| Salmon Creek At Lime Rock | 30 cfs | → |
| Housatonic River At Falls Village | 536 cfs | → |
| Rondout Creek At Rosendale Ny | 213 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Dieterich Dam #3.
Boat launches
- Clearwater Drive Town Of Poughkeepsie
- River Road 190, Hyde Park
- South Kent Road Kent
- Brookside Drive Town Of Esopus
- Main Street Poughkeepsie
- River Road 46, Town Of Lloyd
Campgrounds
- Macedonia Brook State Park
- Wilcox Memorial Park
- Schaghticoke Mountain Camping Area
- Margaret Norrie State Park
- Silver Hill Campsite
- Rudd Pond - Taconic State Park
Fishing spots
Paddle runs
- Kent Bridge To Boardman Bridge
- Falls Mountain Road In Canaan, Connecticut To Kent 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
- The Massachusetts-Connecticut Border To Falls Mountain Road In Canaan, Connecticut
- New Hartford/Canton Town Line To The Confluence With The Nepaug River
Track Dieterich Dam #3 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 Dieterich Dam #3
Where does the data for Dieterich Dam #3 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 Dieterich Dam #3.