Dam Report

Crystal Lake Level Control Dam dam

Michigan, USA Crystal Lake Outlet Hazard Low
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Tonight low
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Dam height
7ft
Hazard rating
Low
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Crystal Lake Level Control Dam -- None dam
Crystal Lake Level Control Dam None · Crystal Lake Outlet
About this dam

Crystal Lake Level Control Dam

The Crystal Lake Level Control Dam in Elberta, Michigan, is a gravity dam completed in 1977 with a primary purpose of recreation. Situated on the Crystal Lake Outlet, this dam has a height of 7 feet and a hydraulic height of 5 feet, with a storage capacity of 27,190 acre-feet. The dam also features a controlled spillway with a width of 70 feet, ensuring the safe management of water levels.

Despite its low hazard potential and satisfactory condition assessment, the dam poses a very high risk due to its location and potential impact on surrounding areas. The dam is privately owned and not regulated by the state, with no inspection or enforcement mechanisms in place. The last inspection was conducted in September 2018, with an inspection frequency of 5 years.

Water resource and climate enthusiasts will find the Crystal Lake Level Control Dam an intriguing structure that plays a crucial role in managing water levels for recreational purposes. Its unique design and risk profile highlight the importance of ongoing monitoring and maintenance to ensure the safety and stability of the dam and surrounding areas.

StateNone
River / streamCrystal Lake Outlet
NID IDMI00349
Owner typePrivate
Primary purposeRecreation
Dam typeGravity
Year built1977
Dam height7 ft
Dam length75 ft
Max storage27,190 AF
Normal storage15,520 AF
Surface area9,950.0 ac
Hazard potentialLow
ConditionSatisfactory
Last inspectionFri, 21 Sep 2018 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 Crystal Lake Level Control Dam -- inflows here typically show up in storage 24-72 hours later.

Track Crystal Lake Level Control 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 Crystal Lake Level Control Dam

Where does the data for Crystal Lake Level Control 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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Other water bodies near here

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Premium feature

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Manage alerts in the Snoflo app

Custom alerts are configured in the iOS app -- favorite this dam, set a threshold, and you'll get a push the moment conditions cross.

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