Dam Report

Anamosa State Reformatory Dam dam

Iowa, USA Tr-Wapsipinicon River Hazard Low
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Tonight low
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Dam height
19ft
Hazard rating
Low
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Anamosa State Reformatory Dam -- None dam
Anamosa State Reformatory Dam None · Tr-Wapsipinicon River
About this dam

Anamosa State Reformatory Dam

The Anamosa State Reformatory Dam, located in Anamosa, Iowa, is a state-regulated earth dam that was completed in 1963 by USDA SCS. The dam serves multiple purposes including fire protection, stock, and small fish pond management. Situated on the TR-Wapsipinicon River, the dam has a height of 19 feet, a length of 336 feet, and a storage capacity of 50 acre-feet.

With a low hazard potential and a moderate risk assessment rating, the Anamosa State Reformatory Dam is an essential structure for water resource management in Jones County, Iowa. The dam is owned by the state and falls under the regulatory oversight of the Iowa Department of Natural Resources. Despite not being rated for condition assessment, the dam continues to play a crucial role in ensuring water availability for various purposes in the region.

Water resource and climate enthusiasts will find the Anamosa State Reformatory Dam an intriguing subject for study due to its location on the TR-Wapsipinicon River and its contribution to fire protection, stock, and fish pond management. The dam, with its uncontrolled spillway and soil foundation, represents a blend of infrastructure and natural elements working together to manage water flow and storage efficiently. As a state-regulated structure with a history dating back to the 1960s, the dam's significance in water resource management in Jones County, Iowa, cannot be understated.

StateNone
River / streamTr-Wapsipinicon River
NID IDIA00562
Owner typeState
Primary purposeFire Protection, Stock, Or Small Fish Pond
Dam typeEarth
Year built1963
Dam height19 ft
Dam length336 ft
Max storage50 AF
Normal storage28 AF
Surface area4.5 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 Anamosa State Reformatory Dam -- inflows here typically show up in storage 24-72 hours later.

Track Anamosa State Reformatory 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 Anamosa State Reformatory Dam

Where does the data for Anamosa State Reformatory 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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