Brook Crossing Detention dam
Brook Crossing Detention
Brook Crossing Detention is a flood risk reduction structure located in East Fallowfield Township, Chester County, Pennsylvania. This earth dam, with a height of 10.5 feet and a length of 350 feet, serves to manage floodwaters from the TR Dennis Run. The dam has a storage capacity of 10 acre-feet and a drainage area of 0.18 square miles.
The dam was last inspected in October 2017 and was assessed to be in fair condition, with a significant hazard potential. While the dam has not been modified since 2003, it is regulated by the Pennsylvania Department of Environmental Protection and undergoes regular inspections. The risk assessment for Brook Crossing Detention is moderate, indicating the need for ongoing monitoring and maintenance to ensure its effectiveness in flood risk reduction.
With its critical role in protecting the surrounding area from flooding, Brook Crossing Detention exemplifies the importance of water resource management and climate adaptation efforts. Climate enthusiasts and water resource experts can appreciate the design and function of this earth dam, as well as the regulatory oversight and maintenance protocols in place to safeguard the community from potential hazards.
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 Brook Crossing Detention -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| West Branch Brandywine Creek At Modena | 26 cfs | → |
| West Branch Brandywine Creek At Coatesville | 17 cfs | → |
| Birch Run Near Wagontown | 2 cfs | → |
| West Branch Brandywine Creek Near Honey Brook | 6 cfs | → |
| Broad Run At Northbrook | 25 cfs | → |
| East Branch Brandywine Creek Near Downingtown | 34 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Brook Crossing Detention.
Boat launches
- Chambers Lake
- West Side-Lyndell
- Struble Lake
- Spruce Grove Road Lancaster County
- Hopewell Lake-French Creek State Park
- Scott's Run Lake-French Creek State Park
Campgrounds
- Harmony Hill Wilderness Area Campsite
- Mill Bridge Village Camp Resort
- William Penn State Forest Designated Campsite
- Red Run Campground
- Camp Horseshoe
- Camp Andrews
Fishing spots
Track Brook Crossing Detention 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 Brook Crossing Detention
Where does the data for Brook Crossing Detention 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 Brook Crossing Detention.