Dam Report

Lake Williams Dam dam

Missouri, USA Sinking Hazard Significant
Today high
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Tonight low
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Dam height
25ft
Hazard rating
Significant
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Lake Williams Dam -- None dam
Lake Williams Dam None · Sinking
About this dam

Lake Williams Dam

Lake Williams Dam in Dent, Missouri, is a private-owned structure completed in 1998 primarily for recreational purposes. This earth dam with a structural height of 25 feet impounds the waters of the Sinking River, creating a serene lake with a storage capacity of 90 acre-feet. Situated within the picturesque Little Rock District, the dam offers a surface area of 9 acres and a drainage area of 570 square miles, making it a popular destination for water resource and climate enthusiasts.

Despite its private ownership, Lake Williams Dam has a significant hazard potential, emphasizing the importance of regular inspections and maintenance. Currently, the dam's condition is listed as "Not Rated," indicating the need for a comprehensive assessment to ensure its safety and integrity. While the dam does not fall under federal jurisdiction, it serves as a vital recreational resource for the community, attracting visitors for fishing, boating, and other water-based activities.

As climate change continues to impact water resources across the globe, Lake Williams Dam stands as a symbol of both the beauty and vulnerability of our natural landscapes. With its tranquil waters and lush surroundings, this dam serves as a reminder of the need to prioritize conservation and sustainable management practices to safeguard our precious water sources for future generations.

StateNone
River / streamSinking
NID IDMO32057
Owner typePrivate
Primary purposeRecreation
Dam typeEarth
Year built1998
Dam height25 ft
Max storage90 AF
Normal storage75 AF
Surface area9.0 ac
Drainage area570.0 sq mi
Hazard potentialSignificant
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 Lake Williams Dam -- inflows here typically show up in storage 24-72 hours later.

Track Lake Williams 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 Lake Williams Dam

Where does the data for Lake Williams 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 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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Snoflo-tracked reservoirs and dams within driving distance of Lake Williams Dam.

Premium feature

Favorites and alerts are part of Snoflo Premium. Save reservoirs, set storage thresholds, and get push notifications when 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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