Dam Report

Lake Meadow Dam dam

Illinois, USA Trib Cahokia Creek Hazard Low
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Dam height
30ft
Hazard rating
Low
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Lake Meadow Dam -- Illinois dam
Lake Meadow Dam Illinois · Trib Cahokia Creek
About this dam

Lake Meadow Dam

Lake Meadow Dam, located in Madison County, Illinois, is a privately owned structure that serves primarily for recreational purposes. Built in 1967, this earth dam stands at a height of 30 feet and has a length of 380 feet, with a storage capacity of 183 acre-feet. Situated on the TRIB CAHOKIA CREEK, the dam is regulated by the Illinois Department of Natural Resources, ensuring that it meets inspection and enforcement requirements.

With a spillway width of 33 feet and uncontrolled spillway and outlet gates, Lake Meadow Dam has a low hazard potential and a moderate risk assessment rating. While its condition assessment is currently unavailable, the dam undergoes inspections every five years to ensure safety and compliance. Despite its limited federal agency involvement, the dam is maintained by private owners and remains a vital component of the local water resource infrastructure in Edwardsville, Illinois.

For water resource and climate enthusiasts, Lake Meadow Dam offers a glimpse into the importance of private infrastructure in managing water resources for recreational purposes. Its location on the TRIB CAHOKIA CREEK, controlled by the Illinois Department of Natural Resources, showcases the collaboration between private owners and state regulatory agencies in ensuring the safety and functionality of such structures. As a low-hazard dam with a moderate risk assessment, Lake Meadow Dam serves as a reminder of the ongoing maintenance and inspection efforts required to mitigate potential risks and uphold water resource management standards in the region.

StateIllinois
River / streamTrib Cahokia Creek
NID IDIL00198
Owner typePrivate
Primary purposeRecreation
Dam typeEarth
Year built1967
Dam height30 ft
Dam length380 ft
Max storage183 AF
Normal storage126 AF
Hazard potentialLow
ConditionNot Available
Last inspectionThu, 28 Jun 2018 00:00:00 GMT
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 Lake Meadow Dam -- inflows here typically show up in storage 24-72 hours later.

Around the water

Make a day of it

Boat launches, lakeside camping, fishing access, and other reservoirs near Lake Meadow Dam.

FAQ

About Lake Meadow Dam

Where does the data for Lake Meadow 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 below 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.

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.