Dam Report

Mill Creek Detention Basin dam

Pennsylvania, USA Tr Pennypack Creek Hazard High
Today high
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Tonight low
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Dam height
11ft
Hazard rating
High
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Mill Creek Detention Basin -- None dam
Mill Creek Detention Basin None · Tr Pennypack Creek
About this dam

Mill Creek Detention Basin

The Mill Creek Detention Basin, located in Montgomery County, Pennsylvania, serves as a critical infrastructure for flood risk reduction along the TR Pennypack Creek. Completed in 1986, this buttress-type dam stands at a height of 11 feet and has a storage capacity of 43 acre-feet. Managed by the local government of Upper Moreland Township, this detention basin plays a crucial role in mitigating flooding risks in the area.

With a high hazard potential and fair condition assessment, the Mill Creek Detention Basin is regularly inspected to ensure its effectiveness in protecting the surrounding community. The Pennsylvania Department of Environmental Protection oversees the regulatory aspects, including permitting, inspection, and enforcement, to maintain the dam's structural integrity and functionality. Despite its modest size, this detention basin plays a significant role in safeguarding the local area from potential flood events, highlighting the importance of sustainable water resource management practices in addressing climate-related challenges.

As climate change continues to impact weather patterns and increase the frequency of extreme rainfall events, structures like the Mill Creek Detention Basin become increasingly essential in safeguarding communities against flood risks. The dedication of local government and state agencies in ensuring the proper management and maintenance of this critical infrastructure underscores the importance of proactive measures in adapting to a changing climate. By prioritizing flood risk reduction and investing in resilient water resource management strategies, the Mill Creek Detention Basin serves as a model for sustainable infrastructure development in the face of climate uncertainty.

StateNone
River / streamTr Pennypack Creek
NID IDPA01404
Owner typeLocal Government
Primary purposeFlood Risk Reduction
Dam typeOther
Year built1986
Dam height11 ft
Dam length65 ft
Max storage43 AF
Drainage area1.8 sq mi
Hazard potentialHigh
ConditionFair
Last inspectionWed, 09 Dec 2020 00:00:00 GMT

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.
Detailed forecast

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.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

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.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

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Regional inflow

Nearby streamflow gauges

USGS streamgauges around Mill Creek Detention Basin -- inflows here typically show up in storage 24-72 hours later.

Track Mill Creek Detention Basin 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.

FAQ

About Mill Creek Detention Basin

Where does the data for Mill Creek Detention Basin 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.