Perrywood (Water Fowl Way) dam
Perrywood (Water Fowl Way)
Perrywood (Water Fowl Way) is a private earth dam located in Largo, Maryland, along the Collington Branch - TR river or stream. Built in 2003 by Greenhorne & O'Mara, Inc., this dam stands at a height of 18.75 feet and spans 500 feet in length. With a maximum storage capacity of 122.4 acre-feet, Perrywood serves a vital role in managing water resources in the area, covering a surface area of 2.1 acres and draining a 0.69 square mile watershed.
Despite being classified as low hazard potential, Perrywood is subject to state regulation by the Maryland Dam Safety agency. Regular inspections and enforcement ensure the dam's structural integrity and safety standards are upheld, with the last inspection taking place in October 2019. The risk assessment for Perrywood rates it as moderate, highlighting the importance of ongoing monitoring and risk management measures to safeguard the surrounding community and environment from potential hazards.
Water resource and climate enthusiasts will appreciate the intricacies of Perrywood's design and functionality, as well as its role in flood control and water storage. The dam's presence contributes to the overall water management efforts in Prince George's County, Maryland, showcasing the intersection of engineering, environmental stewardship, and public safety in maintaining critical infrastructure. As a key component of the local watershed system, Perrywood exemplifies the importance of sustainable water resource management practices in the face of changing climate conditions and increasing water demands.
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 Perrywood (Water Fowl Way) -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Western Branch At Upper Marlboro | 12 cfs | → |
| Patuxent River Near Bowie | 107 cfs | → |
| Watts Branch At Washington | 1 cfs | → |
| North East Branch Anacostia River At Riverdale | 17 cfs | → |
| Nw Branch Anacostia River Near Hyattsville | 10 cfs | → |
| South Fork Jabez Branch At Millersville | 0 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Perrywood (Water Fowl Way).
Track Perrywood (Water Fowl Way) 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 Perrywood (Water Fowl Way)
Where does the data for Perrywood (Water Fowl Way) 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 Perrywood (Water Fowl Way).