Stoppelmoor Dam dam
Stoppelmoor Dam
Stoppelmoor Dam, located in Iowa City, Iowa, was completed in 1974 and is primarily used for fire protection, stock, or as a small fish pond. The dam, designed by USDA NRCS, is classified as an earth dam with a height of 24 feet and a length of 312 feet. It has a storage capacity of 55 acre-feet and covers a surface area of 4.7 acres, serving the purpose of regulating water flow in Turkey Creek.
Owned and regulated by a private entity, Stoppelmoor Dam is under the jurisdiction of the Iowa Department of Natural Resources (DNR) and is subject to state permitting, inspection, and enforcement. With a low hazard potential and a moderate risk assessment rating, the dam has not been rated for its condition assessment. Despite not having an Emergency Action Plan (EAP) in place, the dam meets regulatory guidelines and serves as a critical infrastructure for water resource management and climate resilience in the region.
As a key component of the local water infrastructure, Stoppelmoor Dam plays a crucial role in maintaining water supply and managing flood risks in the area. With its controlled spillway and soil foundation, the dam is designed to withstand moderate risk levels and ensure the safety of nearby residents and the ecosystem. For water resource and climate enthusiasts, Stoppelmoor Dam represents a vital piece of infrastructure that contributes to the sustainable management of water resources in Johnson County, Iowa.
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 Stoppelmoor Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Iowa River Below Coralville Dam Nr Coralville | 2,140 cfs | → |
| Rapid Creek Near Iowa City | 10 cfs | → |
| Iowa River At Iowa City | 2,160 cfs | → |
| Clear Creek Near Coralville | 29 cfs | → |
| Hoover Crk At Hoover Nat.Hist.Site West Branch | 2 cfs | → |
| Old Mans Creek Near Iowa City | 118 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Stoppelmoor Dam.
Boat launches
- Cottage Reserve Road Northeast Big Grove Township
- Mehaffey Bridge Road Northeast , 52333 Iowa
- Falcon Lane Big Grove Township
- Anglers Point Road Northeast Big Grove Township
- Poplar Avenue Northeast Big Grove Township
- Lake Mcbride Road Northeast Big Grove Township
Track Stoppelmoor 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 Stoppelmoor Dam
Where does the data for Stoppelmoor 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 Stoppelmoor Dam.