Dam Report

Wappapello Dam - Saddle Dike 2 dam

Missouri, USA St. Francis Hazard Significant
Today high
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Dam height
13ft
Hazard rating
Significant
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Wappapello Dam - Saddle Dike 2 -- None dam
Wappapello Dam - Saddle Dike 2 None · St. Francis
About this dam

Wappapello Dam - Saddle Dike 2

Wappapello Dam - Saddle Dike 2, located in Wayne County, Missouri, is a crucial federal infrastructure managed by the US Army Corps of Engineers. Completed in 1941, this earth-type dam stands at a height of 114 feet and has a storage capacity of 1,134,600 acre-feet. Primarily serving for flood risk reduction, the dam also supports recreational activities in the area.

With a significant hazard potential, Wappapello Dam is continuously monitored and maintained by the USACE to mitigate flood risks and ensure its structural integrity. The dam's emergency action plan is regularly updated, and the agency collaborates with local emergency managers to develop evacuation plans and raise public awareness. Despite the dam's risk management measures, severe weather events can still pose challenges, prompting controlled water releases to manage reservoir levels and relieve pressure on the structure.

As water resource and climate enthusiasts, understanding the role of Wappapello Dam - Saddle Dike 2 in flood risk reduction and its ongoing risk management efforts is vital. The dam's impact on the St. Francis River system underscores the importance of proactive maintenance and collaboration with local stakeholders to ensure the safety and resilience of communities downstream.

StateNone
River / streamSt. Francis
NID IDMO30204
Owner typeFederal
Primary purposeFlood Risk Reduction
Dam typeEarth
Year built1941
Dam height13 ft
Dam length465 ft
Max storage1,134,600 AF
Normal storage613,200 AF
Surface area23,200.0 ac
Drainage area1,310.0 sq mi
Hazard potentialSignificant
ConditionNot Available
Last inspectionThu, 02 Mar 2017 05:00:00 GMT
EAP preparedYes

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 Wappapello Dam - Saddle Dike 2 -- inflows here typically show up in storage 24-72 hours later.

Track Wappapello Dam - Saddle Dike 2 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 Wappapello Dam - Saddle Dike 2

Where does the data for Wappapello Dam - Saddle Dike 2 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 Significant 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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