Appanoose County Roadgrade dam
Appanoose County Roadgrade
Appanoose County Roadgrade, located in Coal City, Iowa, is a vital infrastructure owned and regulated by the local government. This structure, designed by the Appanoose County Engineer, serves a primary purpose of 'Other' and is a crucial part of the state's regulatory system, with permitting, inspection, and enforcement all conducted by the Iowa Department of Natural Resources. Completed in 1988, the earth dam stands at a height of 24 feet and has a length of 350 feet, providing a storage capacity of 67 acre-feet and covering a surface area of 2.1 acres.
The Appanoose County Roadgrade dam, situated on the TR-Chariton River, plays a significant role in managing water resources in the area, with a low hazard potential and a moderate risk assessment rating. Despite not having a current condition assessment, the structure meets state guidelines and is equipped to handle emergency situations. With its uncontrolled spillway type and soil foundation, the dam serves as a vital component of the local water infrastructure, contributing to flood control and water management efforts in the region.
As part of the Rock Island District, the Appanoose County Roadgrade dam has been a key feature in the Iowa landscape for over three decades. With its historic significance and ongoing role in water resource management, this structure stands as a testament to the importance of sustainable infrastructure development and climate resilience in the face of changing environmental conditions. Its critical functions and regulatory oversight make it a key point of interest for water resource and climate enthusiasts alike.
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 Appanoose County Roadgrade -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Chariton River Near Rathbun | 29 cfs | → |
| Chariton River Near Moulton | 64 cfs | → |
| Fox River At Bloomfield | 7 cfs | → |
| South Fork Chariton River Near Promise City | 84 cfs | → |
| Chariton River At Livonia | 45 cfs | → |
| Des Moines River At Ottumwa | 7,480 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Appanoose County Roadgrade.
⚓ Boat launches
- Isthmus Place Appanoose County
- 200th Avenue Appanoose County
- Islandview Place Appanoose County
- Hornet Place Appanoose County
- Avian Court Appanoose County
- Husky Place Appanoose County
Track Appanoose County Roadgrade 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 Appanoose County Roadgrade
Where does the data for Appanoose County Roadgrade 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 Appanoose County Roadgrade.