Mason-Dixon Water Supply Pond dam
Mason-Dixon Water Supply Pond
Located in Principio Furnace, Cecil County, Maryland, the Mason-Dixon Water Supply Pond, also known as the York Building Products Water Supply Pond, stands as a crucial water resource for the region. Owned privately and regulated by Maryland's Dam Safety agency, the pond serves multiple purposes, including flood risk reduction and recreation. Built in 1966, this earth dam stands at a height of 67 feet and has a storage capacity of 255 acre-feet, with a normal storage level of 108 acre-feet.
With a surface area of 7.3 acres and a drainage area of 0.9 square miles, the pond helps mitigate flood risks and provides a picturesque setting for recreational activities. Despite its age, the dam is reported to be in satisfactory condition, with a low hazard potential according to recent assessments. The spillway type is uncontrolled with a width of 100 feet, and the pond's maximum discharge capacity is 8188 cubic feet per second.
Overall, the Mason-Dixon Water Supply Pond is a valuable asset for the community, offering both practical benefits in terms of flood control and a tranquil environment for leisure activities. As climate change continues to impact water resources, the maintenance and monitoring of structures like this pond will be essential to ensure their continued functionality and safety for the surrounding area.
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 Mason-Dixon Water Supply Pond -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Susquehanna River At Conowingo | 9,240 cfs | → |
| Deer Creek Near Darlington | 263 cfs | → |
| Big Elk Creek At Elk Mills | 73 cfs | → |
| White Clay Creek At Newark | 84 cfs | → |
| East Branch Big Elk Creek At Forestville | 9 cfs | → |
| Christina River At Coochs Bridge | 16 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Mason-Dixon Water Supply Pond.
Track Mason-Dixon Water Supply Pond 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 Mason-Dixon Water Supply Pond
Where does the data for Mason-Dixon Water Supply Pond 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 Mason-Dixon Water Supply Pond.