Dam Report

Deer Ridge Dam dam

Iowa, USA Tr- Thompson River Hazard Low
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Dam height
34ft
Hazard rating
Low
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Deer Ridge Dam -- None dam
Deer Ridge Dam None · Tr- Thompson River
About this dam

Deer Ridge Dam

Deer Ridge Dam, located in Talmage, Iowa, on the TR-Thompson River, is a recreational earth dam completed in 1983 by the USDA NRCS. The dam stands at 34 feet high, with a length of 365 feet, providing storage of up to 63 acre-feet of water. While primarily used for recreation, the dam also serves as a vital resource for the local community, with a surface area of 7.2 acres and a drainage area of 0.23 square miles.

Managed by the Iowa Department of Natural Resources, Deer Ridge Dam is regulated, permitted, inspected, and enforced by state authorities to ensure its safety and functionality. The dam has a low hazard potential and has not been rated for its current condition. Despite its moderate risk level, the dam has not undergone a risk assessment or had emergency action plans prepared or updated. As a significant structure in Union County, Iowa, Deer Ridge Dam plays a crucial role in water resource management and climate resilience efforts in the region.

With its picturesque location and important role in water management, Deer Ridge Dam offers both recreational opportunities and serves as a critical infrastructure for the surrounding community. Its construction by the Natural Resources Conservation Service underscores the commitment to sustainable water resource management and underscores the importance of collaboration between federal and state agencies in ensuring the safety and functionality of dams like Deer Ridge. For enthusiasts interested in water resources and climate resilience, Deer Ridge Dam stands as a testament to the vital role of infrastructure in protecting communities and ecosystems from the impacts of changing weather patterns.

StateNone
River / streamTr- Thompson River
NID IDIA02223
Owner typeLocal Government
Primary purposeRecreation
Dam typeEarth
Year built1983
Dam height34 ft
Dam length365 ft
Max storage63 AF
Normal storage35 AF
Surface area7.2 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 Deer Ridge Dam -- inflows here typically show up in storage 24-72 hours later.

Track Deer Ridge 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.

FAQ

About Deer Ridge Dam

Where does the data for Deer Ridge 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.

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