Dam Report

Phipps Lake Dam dam

Michigan, USA Zimmerman Branch Hazard Low
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Tonight low
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Dam height
10ft
Hazard rating
Low
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Phipps Lake Dam -- None dam
Phipps Lake Dam None · Zimmerman Branch
About this dam

Phipps Lake Dam

Phipps Lake Dam, also known as Phillips Lake Dam, is a privately owned structure located in Grand Blanc, Michigan. Built in 1930, this earth dam serves primarily for recreational purposes and stands at a height of 10 feet with a length of 75 feet. Situated on the Zimmerman Branch river, the dam has a normal storage capacity of 54 acre-feet and a maximum discharge rate of 50 cubic feet per second.

Despite being classified as having a low hazard potential and fair condition assessment, Phipps Lake Dam is subject to state regulation, permitting, inspection, and enforcement by the Michigan Department of Environment, Great Lakes, and Energy (DEGLE). The dam's controlled spillway, with a width of 3 feet, ensures the safe release of excess water during periods of high flow. With a very high risk rating, the dam's emergency action plan status and inundation maps have not been updated recently, highlighting potential vulnerabilities that may need to be addressed in the future to ensure the safety of the surrounding community and environment.

StateNone
River / streamZimmerman Branch
NID IDMI00314
Owner typePrivate
Primary purposeRecreation
Dam typeEarth
Year built1930
Dam height10 ft
Dam length75 ft
Max storage75 AF
Normal storage54 AF
Surface area54.0 ac
Drainage area1.6 sq mi
Hazard potentialLow
ConditionFair
Last inspectionSat, 12 Nov 2016 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 Phipps Lake Dam -- inflows here typically show up in storage 24-72 hours later.

Track Phipps Lake 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.

FAQ

About Phipps Lake Dam

Where does the data for Phipps Lake 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 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.

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