Clarifiers dam
Clarifiers
Clarifiers in Harrisburg, Illinois, are privately owned structures regulated by the state agency IDNR. These Earth-type dams, standing at a height of 36 feet, serve the primary purpose of water supply, with a storage capacity of 130 acre-feet. The Mine Safety and Health Administration oversees inspections and enforcement at the site, ensuring compliance with safety regulations.
With a low hazard potential and no available condition assessment, the Clarifiers are considered to be in satisfactory condition. The last inspection date was in January 2004, indicating a need for updated assessments to ensure the continued safety and functionality of the structure. While the risk assessment and management measures are not specified, the presence of state permitting, inspection, and enforcement suggests a commitment to maintaining the integrity of the dam.
Located in Saline County, Illinois, the Clarifiers play a vital role in water resource management in the region. As enthusiasts of water resources and climate, it is important to monitor and advocate for the upkeep of such infrastructure to ensure the sustainable utilization of this essential natural resource. With the involvement of regulatory agencies and state oversight, these clarifiers serve as a key component in the water supply network of the area, highlighting the intersection of engineering, environmental stewardship, and regulatory compliance.
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 Clarifiers -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| South Fork Saline River Nr Carrier Mills | 48 cfs | → |
| Crab Orchard Creek Near Marion | 16 cfs | → |
| Big Muddy River At Plumfield | 245 cfs | → |
| Lusk Creek Near Eddyville | 130 cfs | → |
| Ohio River At Old Shawneetown | 259,000 cfs | → |
| Little Wabash River At Carmi | 6,170 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Clarifiers.
Boat launches
- Cotton Road Saline County
- Town Park Road Saline County
- Meadowlark Road Williamson County
- Reservoir Road 11298, Williamson County
- Hickory Johnson County
- Trailhead Lane Franklin County
Campgrounds
- Saline County State Fish & Wildlife Area
- Pharaoh Campground
- Teal Pond Campground
- Bear Branch Horse Resort
- High Knob Campground
- Red Bud Campground
Fishing spots
- Lake Of Egypt
- One Horse Gap Lake
- Little Cache Lake #1 (Bowman Lake)
- Lake Tecumseh
- Whoopie Cat Lake
- Dutchman Lake
Paddle runs
- Wallace Cemetery Approx 2.5 Miles Nw Of Herod, Il To Confluence With Ohio River At Golconda Jobs Corp Center
- Source, About 2 Miles East Of Delwood, Il (Sec 10, T11s, R6e) To Bridge At Eddyville Blacktop (Se1/4,Sec.16,T12s, R6e)
- 1 Minle Southwest Of Delwood, Il (Sec. 18, T11s, R13e) To Reesville, 1/4 Mile South Of The Confluence With Sugar Creek
- Russell Cemetery, Approx 1/4 Mile North Of Karbers Ridge Road To Proclamation Boundary, 1 Mile Nw Of Elizabethtown,Il
- Bridge At Eddyville Blacktop To Confluence With Ohio River At Golconda,Il
- 1 Mile West Of Alto Pass, Il To 1/2 Mile South Of Confluence With Clear Creek, West Of Trail Of Tears State Forest
Track Clarifiers 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 Clarifiers
Where does the data for Clarifiers 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 Clarifiers.