Holly House Meadows Dam dam
Holly House Meadows Dam
Holly House Meadows Dam, also known as Lime Kiln Road Dam, is a private earth dam located in Fulton, Maryland along the Patuxent River. Built in 1983 by Development Design Consultants, Inc., the dam stands at a height of 20.2 feet and has a length of 545 feet. Its primary purpose is flood risk reduction, with a storage capacity of 32 acre-feet and a maximum discharge of 2830 cubic feet per second.
The dam is regulated by the Maryland Dam Safety agency and undergoes regular inspections to ensure its safety and compliance with state regulations. Despite being classified as having a high hazard potential, the dam is currently assessed as being in satisfactory condition as of June 2018. With a moderate risk level of 3, the dam is equipped with an uncontrolled spillway and has a surface area of 3.8 acres, serving as a critical infrastructure for flood control in the region.
The presence of Holly House Meadows Dam provides essential flood risk reduction benefits to the surrounding area, contributing to the overall water resource management and climate resilience efforts in Howard County, Maryland. As a privately owned structure, the dam plays a crucial role in mitigating potential flooding events along the Patuxent River, safeguarding the community and enhancing the overall water infrastructure 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 Holly House Meadows Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Patuxent Riv Near Laurel | 19 cfs | → |
| Patuxent River Below Brighton Dam Near Brighton | 14 cfs | → |
| Hawlings River Near Sandy Spring | 17 cfs | → |
| Little Patuxent River At Guilford | 122 cfs | → |
| Little Patuxent River At Savage | 266 cfs | → |
| Nw Branch Anacostia River Near Colesville | 126 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Holly House Meadows Dam.
Boat launches
- Supplee Launch
- Lightspun Lane 5665, Long Reach
- 99 Drop Howard County
- Piney Run Park
- Liberty Road Carroll County
- Lakeview Avenue Carroll County
Campgrounds
Track Holly House Meadows Dam 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 Holly House Meadows Dam
Where does the data for Holly House Meadows Dam 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 High 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 Holly House Meadows Dam.