Harrell Lake North Dam dam
Harrell Lake North Dam
Harrell Lake North Dam, located in Adams County, Illinois, is a privately owned structure primarily used for recreation. The dam, completed in 1965, is an earth dam with a height of 22 feet and a length of 780 feet. It has a storage capacity of 186 acre-feet and a normal storage level of 128 acre-feet. The dam is regulated by the Illinois Department of Natural Resources and is subject to regular inspections to ensure its safety and compliance with state regulations.
Despite being classified as having a low hazard potential, Harrell Lake North Dam is still considered to have a moderate risk level. The dam features an uncontrolled spillway with a width of 26 feet. The last inspection of the dam was conducted in September 2013, with a recommended inspection frequency of every five years. While the condition assessment of the dam is not currently available, measures are in place to manage potential risks associated with the structure.
With its scenic location and recreational purpose, Harrell Lake North Dam is an important feature in the local landscape. The dam, situated along the TRIB FIGLEY BRANCH and MCKEE CREEK, provides opportunities for water-based activities and outdoor enjoyment for residents and visitors alike. As efforts continue to manage and maintain the dam, it serves as a vital resource for water conservation and climate enthusiasts to appreciate and protect.
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 Harrell Lake North Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Bear Creek Near Marcelline | 1,880 cfs | → |
| La Moine River At Ripley | 7,760 cfs | → |
| La Moine River At Colmar | 4,150 cfs | → |
| North River At Palmyra | 2,510 cfs | → |
| South Fabius River Near Taylor | 12,100 cfs | → |
| Bear Creek At Hannibal | 132 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Harrell Lake North Dam.
Track Harrell Lake North 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 Harrell Lake North Dam
Where does the data for Harrell Lake North 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.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Harrell Lake North Dam.