Dam Report

Leonard Spring Dam dam

Indiana, USA Hazard High
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Dam height
35ft
Hazard rating
High
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Leonard Spring Dam -- None dam
Leonard Spring Dam None
About this dam

Leonard Spring Dam

Leonard Spring Dam, located in Monroe, Indiana, is an Earth dam with a height of 35 feet and a storage capacity of 490 acre-feet. Though the dam was completed in an unspecified year, its last inspection dates back to January 1962, indicating a potential need for further assessment and maintenance. With a high hazard potential and no current condition rating, it is crucial for water resource and climate enthusiasts to keep a close eye on the safety and integrity of this structure.

Despite not being state-regulated or permitted, Leonard Spring Dam poses a significant risk due to its outdated inspection date and lack of condition assessment. With a surface area of 28 acres and a drainage area of 0, the dam is situated in an area where its failure could have far-reaching consequences. Climate change and extreme weather events further emphasize the importance of ensuring the resilience and safety of critical infrastructure such as Leonard Spring Dam.

As advocates for water resource management and climate resilience, it is imperative to push for updated inspections, risk assessments, and emergency preparedness measures for Leonard Spring Dam. By staying informed and engaged with the state agencies responsible for overseeing dam safety, enthusiasts can help mitigate potential hazards and safeguard communities and ecosystems downstream of this important water management structure in Indiana.

StateNone
NID IDIN03463
Owner typeNot Listed
Dam height35 ft
Max storage490 AF
Surface area28.0 ac
Hazard potentialHigh
ConditionNot Rated
Last inspectionMon, 01 Jan 1962 00:00:00 GMT

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 Leonard Spring Dam -- inflows here typically show up in storage 24-72 hours later.

Track Leonard Spring 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 Leonard Spring Dam

Where does the data for Leonard Spring 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 High 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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