Four D Wetland Dam dam
Four D Wetland Dam
The Four D Wetland Dam, located in Middle Amana, Iowa, was completed in 2006 with the primary purpose of serving as a Fish and Wildlife Pond. This private-owned dam stands at a height of 10 feet and stretches out over a length of 7800 feet, offering a storage capacity of 555 acre-feet. With a low hazard potential and a moderate risk assessment rating, the dam is state-regulated and inspected regularly by the Iowa DNR to ensure its structural integrity and safety.
Situated along the TR-Iowa River, this Earth-type dam utilizes soil foundations and features an uncontrolled spillway with a width of 3 feet. Despite not having any associated structures or outlet gates, the Four D Wetland Dam serves an important role in providing habitat for fish and wildlife in the area. The risk management measures for this dam are currently unspecified, but its condition is noted as not rated, indicating potential room for improvement in assessing and addressing any deficiencies.
For water resource and climate enthusiasts, the Four D Wetland Dam offers an intriguing case study in dam management and habitat conservation. As a vital component of the local ecosystem, this dam plays a key role in supporting biodiversity and providing recreational opportunities for the community. With its strategic location and moderate risk profile, the dam serves as a valuable asset for both environmental conservation and flood control efforts 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 Four D Wetland Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Iowa River At Marengo | 2,410 cfs | → |
| Big Bear Creek At Ladora | 122 cfs | → |
| Iowa River Near Belle Plaine | 2,050 cfs | → |
| Clear Creek Near Oxford | 26 cfs | → |
| Salt Creek Near Elberon | 131 cfs | → |
| Walnut Creek Near Hartwick | 33 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Four D Wetland Dam.
Boat launches
- 216th Street Iowa County
- State Highway 21 Iowa County
- J Avenue Northeast 201, Cedar Rapids
- 360th Street Tama County
- Poplar Avenue Northeast Big Grove Township
- Mehaffey Bridge Road Northeast , 52333 Iowa
Track Four D Wetland 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 Four D Wetland Dam
Where does the data for Four D Wetland 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 Four D Wetland Dam.