Dam Report

East Fork Grand River Watershed Site A-96 dam

Iowa, USA Tr- Esat Fork Grand River Hazard Low
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Tonight low
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Dam height
25ft
Hazard rating
Low
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East Fork Grand River Watershed Site A-96 -- None dam
East Fork Grand River Watershed Site A-96 None · Tr- Esat Fork Grand River
About this dam

East Fork Grand River Watershed Site A-96

Located in the picturesque East Fork Grand River Watershed in Iowa, Site A-96 is a vital infrastructure designed by the USDA NRCS to serve the purpose of flood risk reduction. Completed in 2005, this earth dam stands 25 feet tall and extends 563 feet in length, with a storage capacity of 86 acre-feet. With a low hazard potential and a moderate risk assessment rating, this structure plays a crucial role in safeguarding the surrounding area from potential flooding events.

Managed by the Iowa Department of Natural Resources, this dam is regulated, permitted, inspected, and enforced to ensure its structural integrity and functionality. The site is situated in Ringgold County, Iowa, and its location at NW,SE,S6,T069N,R28W makes it a strategic point for managing the flow of the TR- East Fork Grand River. Despite not being rated for condition assessment, this dam is maintained to meet guidelines and protect the community from potential risks associated with flooding.

With a primary focus on flood risk reduction, Site A-96 serves as a testament to effective water resource management and climate adaptation strategies in the region. Operated by local government authorities with support from the NRCS, this structure exemplifies the collaborative efforts required to address environmental challenges and protect communities from the impacts of extreme weather events. As a key component of the watershed's infrastructure, this dam plays a crucial role in mitigating flood risks and ensuring the safety and well-being of the surrounding area.

StateNone
River / streamTr- Esat Fork Grand River
NID IDIA03790
Owner typeLocal Government
Primary purposeFlood Risk Reduction
Dam typeEarth
Year built2005
Dam height25 ft
Dam length563 ft
Max storage86 AF
Normal storage25 AF
Surface area5.7 ac
Drainage area0.3 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 East Fork Grand River Watershed Site A-96 -- inflows here typically show up in storage 24-72 hours later.

Track East Fork Grand River Watershed Site A-96 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 East Fork Grand River Watershed Site A-96

Where does the data for East Fork Grand River Watershed Site A-96 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.