Dam Report

Willow Creek Watershed Dam A- 28 dam

Missouri, USA Tr-Willow Creek Hazard Low
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Dam height
28ft
Hazard rating
Low
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Willow Creek Watershed Dam A- 28 -- None dam
Willow Creek Watershed Dam A- 28 None · Tr-Willow Creek
About this dam

Willow Creek Watershed Dam A- 28

Willow Creek Watershed Dam A- 28 is a vital infrastructure in Ray, Missouri, designed by the USDA NRCS for grade stabilization purposes. Completed in 1970, this earth dam stands at a height of 28 feet and has a structural height of 30 feet, with a maximum storage capacity of 71 acre-feet. Serving the primary purpose of grade stabilization, the dam plays a crucial role in managing water resources in the region.

Located in S34,T52N,R28W, along the TR-WILLOW CREEK, this dam is under the ownership of the local government in HENRIETTA. With a low hazard potential and moderate risk assessment, the dam has a spillway width of 40 feet and a maximum discharge capacity of 255 cubic feet per second. Despite not being rated for condition assessment, this dam provides essential flood control and water management services for the Willow Creek Watershed, covering a drainage area of 2600 acres.

With an uncontrolled spillway type, this dam is a key feature in the water resource infrastructure of Missouri. While its emergency action plan status and risk management measures are currently unspecified, Willow Creek Watershed Dam A- 28 remains a critical component in maintaining the environmental sustainability and climate resilience of the region. As an earth dam with stone core types and soil foundations, this structure exemplifies the importance of effective water resource management for local communities and ecosystems.

StateNone
River / streamTr-Willow Creek
NID IDMO11231
Owner typeLocal Government
Primary purposeGrade Stabilization
Dam typeEarth
Year built1970
Dam height28 ft
Dam length475 ft
Max storage71 AF
Normal storage32 AF
Surface area37.0 ac
Drainage area2,600.0 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 Willow Creek Watershed Dam A- 28 -- inflows here typically show up in storage 24-72 hours later.

Track Willow Creek Watershed Dam A- 28 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 Willow Creek Watershed Dam A- 28

Where does the data for Willow Creek Watershed Dam A- 28 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.