Iowa Noname74 dam
Iowa Noname74
Iowa Noname74 is a recreational earth dam located in Louisa, Iowa, near the city of Elrick. Built in 1976 by the USDA NRCS, this dam stands at a height of 29 feet and has a length of 273 feet, providing a storage capacity of 59 acre-feet. With a surface area of 40 acres and a drainage area of 0.11 square miles, the dam is regulated by the Iowa Department of Natural Resources and is regularly inspected and maintained to ensure public safety.
The primary purpose of Iowa Noname74 is recreation, offering opportunities for outdoor activities in the surrounding area. Despite being classified as a low hazard potential structure, the dam is subject to moderate risk assessment due to its age and condition. The dam is equipped with an uncontrolled spillway and is located along the TR-OTTER CREEK river or stream, under the jurisdiction of the Rock Island District of the US Army Corps of Engineers, with oversight from local government agencies.
Water resource and climate enthusiasts can appreciate the importance of Iowa Noname74 in providing recreational opportunities while also serving as a critical structure for flood control and water management in the region. With its state-regulated status and regular inspections, this dam exemplifies the collaborative efforts between local government agencies and federal partners to ensure the safety and sustainability of water resources in 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 Iowa Noname74 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Iowa River At Wapello | 10,500 cfs | → |
| Big Creek Near Mt. Pleasant | 7 cfs | → |
| Cedar River Near Conesville | 6,180 cfs | → |
| Edwards River Near New Boston | 294 cfs | → |
| Iowa River Near Lone Tree | 3,890 cfs | → |
| Pope Creek Near Keithsburg | 78 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Iowa Noname74.
Boat launches
- F Avenue 9777, Louisa County
- 78th Street Louisa County
- 120th Street Louisa County
- Prairie Street 5882, Louisa County
- Prairie Street 5898, Louisa County
- Vine Avenue Washington County
Campgrounds
- Virginia Grove Rec Area
- Wapello Fairgrounds Park
- Louisa County Fairgrounds
- Snively Access
- Flaming Prairie Park
- Big Hollow Creek Park
More reservoirs
Track Iowa Noname74 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 Iowa Noname74
Where does the data for Iowa Noname74 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 Iowa Noname74.