Christie Brook Dam #1 dam
Christie Brook Dam #1
Christie Brook Dam #1, also known as Lake Wanoksink, is a state-owned structure in Sloatsburg, Rockland County, New York. Completed in 1934, this earth dam stands at 25 feet tall and stretches 710 feet in length. With a storage capacity of 380 acre-feet and a surface area of 38 acres, this dam serves primarily for recreational purposes on Pine Meadow Brook.
Managed by the New York State Department of Environmental Conservation (NYS DEC), Christie Brook Dam #1 has a significant hazard potential but is currently in satisfactory condition. The dam features an uncontrolled spillway with a width of 60 feet, capable of handling a maximum discharge of 1440 cubic feet per second. Regular inspections are conducted every four years to ensure the dam's safety and integrity.
With its moderate risk assessment rating, Christie Brook Dam #1 is a vital water resource structure providing both recreational opportunities and flood control measures for the surrounding area. As climate and water resource enthusiasts, this dam serves as a tangible reminder of the importance of proper infrastructure management in the face of changing environmental conditions.
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 Christie Brook Dam #1 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Mahwah River Near Suffern Ny | 7 cfs | → |
| Ramapo River At Ramapo Ny | 55 cfs | → |
| Ramapo River At Suffern Ny | 35 cfs | → |
| Ramapo River Near Mahwah Nj | 73 cfs | → |
| Ringwood Creek Near Wanaque Nj | 8 cfs | → |
| Saddle River At Upper Saddle River Nj | 12 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Christie Brook Dam #1.
Boat launches
- Ringwood-Ramapo Trail Ringwood
- Laurel Meadow Drive Town Of Warwick
- Blue Lake Road Town Of Warwick
- Battlefield Road Town Of Stony Point
- Greenwood Lake Turnpike Ringwood
- Cortlandt Street Cortlandt
Campgrounds
- Beaver Pond - Harriman State Park
- Beaver Pond Campsite
- Croton Point Park
- Blue Mountain Reservation
- Round Pond Military
- Camping For Hikers On Ballfield Graymoor Center
Fishing spots
Track Christie Brook Dam #1 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 Christie Brook Dam #1
Where does the data for Christie Brook Dam #1 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 Christie Brook Dam #1.