Lake Benton Dam dam
Lake Benton Dam
Lake Benton Dam, located in Zeigler, Illinois, was designed by E. A. COX and completed in 1939. This earth dam stands at 22 feet tall and spans a length of 1100 feet, providing recreational opportunities for locals and visitors alike. The dam is regulated by the Illinois Department of Natural Resources and has a significant hazard potential, with a moderate risk assessment rating.
The dam's primary purpose is recreation, with a normal storage capacity of 371 acre-feet and a total storage of 873 acre-feet. Lake Benton Dam's spillway type is uncontrolled, with a spillway width of 399 feet. The dam is inspected every three years, with the last inspection conducted in May 2018. While the condition assessment is currently unavailable, the dam's risk management measures are in place to ensure the safety and stability of the structure.
With its picturesque location on Marcum Branch and its contribution to the local community's recreational activities, Lake Benton Dam serves as a vital water resource in Franklin County, Illinois. As an earth dam with buttress core types, it continues to be a focal point for water resource and climate enthusiasts seeking to explore and appreciate the beauty and significance of dam infrastructure in the region.
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 Lake Benton Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Big Muddy River At Plumfield | 296 cfs | → |
| Rayse Creek Near Waltonville | 6 cfs | → |
| Casey Fork At Mount Vernon | 11 cfs | → |
| Crab Orchard Creek Near Marion | 2 cfs | → |
| Skillet Fork At Wayne City | 117 cfs | → |
| Big Muddy River At Rte 127 At Murphysboro | 719 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Lake Benton Dam.
Boat launches
- Franklin County
- Trailhead Lane Franklin County
- Illinois Route 154 Franklin County
- Rend Lake Bike Trail Franklin County
- Illinois Route 37 Franklin County
Campgrounds
Fishing spots
- Lake Of Egypt
- Dutchman Lake
- Little Cache Lake #1 (Bowman Lake)
- One Horse Gap Lake
- Lake Tecumseh
- Whoopie Cat Lake
Paddle runs
- 1/2 Mile Downstream Of Confluence With Kinkaid Creek To Confluence With Mississippi River, Approx 4 Miles South Of Grand Tower, Il
- 1 Minle Southwest Of Delwood, Il (Sec. 18, T11s, R13e) To Reesville, 1/4 Mile South Of The Confluence With Sugar Creek
- Source, About 2 Miles East Of Delwood, Il (Sec 10, T11s, R6e) To Bridge At Eddyville Blacktop (Se1/4,Sec.16,T12s, R6e)
- Wallace Cemetery Approx 2.5 Miles Nw Of Herod, Il To Confluence With Ohio River At Golconda Jobs Corp Center
- 1 Mile West Of Alto Pass, Il To 1/2 Mile South Of Confluence With Clear Creek, West Of Trail Of Tears State Forest
- Bridge At Eddyville Blacktop To Confluence With Ohio River At Golconda,Il
Track Lake Benton 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 Lake Benton Dam
Where does the data for Lake Benton 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 Lake Benton Dam.