Coal & Crane Creek Structure 11 dam
Coal & Crane Creek Structure 11
Coal & Crane Creek Structure 11, located in Meredosia, Illinois, is a privately-owned earth dam designed by the USDA NRCS in 1975 for flood risk reduction along the Trib Bluff Ditch. Standing at a height of 48 feet and stretching 268 feet in length, this structure has a storage capacity of 41 acre-feet and a drainage area of 0.13 square miles. The dam is primarily composed of stone core and built on a soil foundation, with uncontrolled spillways and outlets.
Despite being classified as having a low hazard potential, the dam still poses a moderate risk due to its age and condition assessment not being available. The last inspection in July 2017 revealed no major issues, but regular monitoring and maintenance are essential to ensure its continued effectiveness in flood risk reduction. With the Illinois Department of Natural Resources (IDNR) as the state regulatory agency overseeing its operations, the structure plays a crucial role in mitigating flooding in the area, under the jurisdiction of Schuyler County, Illinois.
As an integral part of the flood control infrastructure in the region, Coal & Crane Creek Structure 11 serves as a vital asset in protecting the surrounding community from potential inundation. With its modest storage capacity and moderate risk level, ongoing assessment and risk management measures are necessary to uphold its functionality and safety standards for water resource and climate enthusiasts invested in the preservation of this essential infrastructure.
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 Coal & Crane Creek Structure 11 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| La Moine River At Ripley | 364 cfs | → |
| Illinois River At Valley City | 10,300 cfs | → |
| Sangamon River Near Oakford | 1,570 cfs | → |
| La Moine River At Colmar | 178 cfs | → |
| Spoon River At Seville | 665 cfs | → |
| Bay Creek At Pittsfield | 43 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Coal & Crane Creek Structure 11.
Boat launches
- Gurney Road Cass County
- County Highway 11 Cass County
- Gridley Road Cass County
- State Park Road Adams County
- West Jefferson Street 598, Havana
- Florance Boat Ramp
Track Coal & Crane Creek Structure 11 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 Coal & Crane Creek Structure 11
Where does the data for Coal & Crane Creek Structure 11 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 Coal & Crane Creek Structure 11.