Dam Report

Waubonsie Cr. Watershed Site 3-6 dam

Iowa, USA Tr- Mc Pherron Creek Hazard Low
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Dam height
50ft
Hazard rating
Low
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Waubonsie Cr. Watershed Site 3-6 -- None dam
Waubonsie Cr. Watershed Site 3-6 None · Tr- Mc Pherron Creek
About this dam

Waubonsie Cr. Watershed Site 3-6

Waubonsie Creek Watershed Site 3-6 is a vital water resource located in Mills, Iowa, managed by the local government and designed by USDA NRCS. This site serves multiple purposes including fire protection, stock, small fish pond, and flood risk reduction. The earth dam, completed in 1989, stands at a height of 50 feet and has a storage capacity of 250 acre-feet, with a normal storage of 177 acre-feet over a surface area of 8.5 acres. The dam plays a crucial role in managing water flow and ensuring water security for the surrounding area.

Managed by the Iowa DNR, this watershed site is regulated, permitted, inspected, and enforced to meet state guidelines and ensure its safety and functionality. The dam has a low hazard potential and moderate risk assessment, indicating a need for ongoing monitoring and management. With a drainage area of 0.23 square miles and located along TR- Mc Pherron Creek, this site plays a critical role in flood risk reduction and water management in the region. As a part of the Omaha District, this site contributes to the overall water resource infrastructure in the area.

Overall, Waubonsie Creek Watershed Site 3-6 is a significant water resource infrastructure managed by local government and designed by USDA NRCS to serve multiple purposes including flood risk reduction and water storage. With its earth dam structure and moderate risk assessment, ongoing monitoring and management are essential to ensure its safety and functionality. This site plays a vital role in managing water flow, protecting against floods, and securing water resources for the surrounding community in Mills, Iowa.

StateNone
River / streamTr- Mc Pherron Creek
NID IDIA02488
Owner typeLocal Government
Primary purposeFire Protection, Stock, Or Small Fish Pond
Dam typeEarth
Year built1989
Dam height50 ft
Dam length485 ft
Max storage250 AF
Normal storage177 AF
Surface area8.5 ac
Drainage area0.2 sq mi
Hazard potentialLow
ConditionNot Rated

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.
Detailed forecast

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.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

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.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

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Regional inflow

Nearby streamflow gauges

USGS streamgauges around Waubonsie Cr. Watershed Site 3-6 -- inflows here typically show up in storage 24-72 hours later.

Track Waubonsie Cr. Watershed Site 3-6 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.

FAQ

About Waubonsie Cr. Watershed Site 3-6

Where does the data for Waubonsie Cr. Watershed Site 3-6 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.

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Manage alerts in the Snoflo app

Custom alerts are configured in the iOS app -- favorite this dam, set a threshold, and you'll get a push the moment conditions cross.

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