Dam Report

Reed Subwatershed Sta 97+82 dam

Iowa, USA Tr-Walnut Creek Hazard Low
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Dam height
33ft
Hazard rating
Low
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Reed Subwatershed Sta 97+82 -- None dam
Reed Subwatershed Sta 97+82 None · Tr-Walnut Creek
About this dam

Reed Subwatershed Sta 97+82

Located in Monona County, Iowa, the Reed Subwatershed Sta 97+82 is a crucial water resource managed by the local government. This earth dam, completed in 1966, serves multiple purposes including fire protection, stock, small fish pond, and flood risk reduction. With a height of 33 feet and a length of 454 feet, the dam has a storage capacity of 129 acre-feet and covers a surface area of 7.2 acres.

Situated on the TR-Walnut Creek, this dam is regulated by the Iowa Department of Natural Resources (DNR) and is inspected, permitted, and enforced by the state. Despite its low hazard potential, the dam has a moderate risk assessment of 3, highlighting the importance of ongoing risk management measures. The Reed Subwatershed Sta 97+82 is a significant component of the local water infrastructure, providing essential services while also contributing to the overall ecological health of the region.

Managed by the USDA NRCS, this dam represents the intersection of water resource management and climate resilience in the region. Its strategic location, purposeful design, and regulatory oversight underscore the importance of sustainable water infrastructure for both human and environmental well-being. As water resource and climate enthusiasts continue to monitor and advocate for responsible water management practices, the Reed Subwatershed Sta 97+82 serves as a valuable case study in the intersection of water resource management, climate adaptation, and community resilience.

StateNone
River / streamTr-Walnut Creek
NID IDIA00739
Owner typeLocal Government
Primary purposeFire Protection, Stock, Or Small Fish Pond
Dam typeEarth
Year built1966
Dam height33 ft
Dam length454 ft
Max storage129 AF
Normal storage73 AF
Surface area7.2 ac
Drainage area16.9 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 Reed Subwatershed Sta 97+82 -- inflows here typically show up in storage 24-72 hours later.

Track Reed Subwatershed Sta 97+82 in the Snoflo app

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FAQ

About Reed Subwatershed Sta 97+82

Where does the data for Reed Subwatershed Sta 97+82 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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