Matherville Lagoons Dam dam
Matherville Lagoons Dam
Matherville Lagoons Dam, located in Mercer County, Illinois, is a local government-owned structure regulated by the Illinois Department of Natural Resources. This earth dam, standing at a height of 9 feet, serves primarily for offstream water storage along the Edwards River. With a normal storage capacity of 100 acre-feet and a maximum storage of 120 acre-feet, the dam plays a crucial role in managing water resources in the area.
Despite its modest size, Matherville Lagoons Dam poses a significant hazard potential, as indicated by a high risk assessment rating of 2. However, specific details on its condition assessment are not available. The last inspection in November 2020 revealed no major concerns, but the dam's emergency action plan has not been updated in recent years. With a three-year inspection frequency and a designated emergency contact protocol, ongoing risk management measures are in place to ensure the safety and integrity of the dam.
Water resource and climate enthusiasts can appreciate Matherville Lagoons Dam as a vital infrastructure for water storage and management in Mercer County. Its location along the Edwards River, coupled with state regulatory oversight and high hazard potential, highlights the importance of monitoring and maintaining this earth dam to mitigate risks and safeguard surrounding communities and ecosystems from potential water-related threats.
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 Matherville Lagoons Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Edwards River Near Orion | 66 cfs | → |
| Mill Creek At Milan | 41 cfs | → |
| Pope Creek Near Keithsburg | 123 cfs | → |
| Edwards River Near New Boston | 266 cfs | → |
| Henderson Creek Near Oquawka | 288 cfs | → |
| Duck Creek At Dc Golf Course At Davenport | 63 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Matherville Lagoons Dam.
Boat launches
- Big Island Parkway Rock Island
- 48th Street 5598, Moline
- George Skafidas Parkway Rock Island
- South Concord Street 2490, Davenport
- Public Boat Ramp Rock Island County
- Riverfront Trail Davenport
Track Matherville Lagoons 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.
About Matherville Lagoons Dam
Where does the data for Matherville Lagoons 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 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 Matherville Lagoons Dam.