Dam Report

Charlotte dam

Wyoming, USA Charlotte Draw Hazard Low
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Tonight low
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Dam height
25ft
Hazard rating
Low
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Charlotte -- None dam
Charlotte None · Charlotte Draw
About this dam

Charlotte

Charlotte is a private water resource located in Natrona, Wyoming, specifically in the city of LYSITE, along the CHARLOTTE DRAW river or stream. Built in 1958, this earth dam serves multiple purposes, including fire protection, stock, and small fish pond. With a structural height of 25 feet and a hydraulic height of 20 feet, Charlotte has a storage capacity of 44 acre-feet and covers a surface area of 3 acres.

Despite being categorized as low hazard potential, Charlotte's condition assessment is rated as fair, with the last inspection conducted in July 2021. The dam has an uncontrolled spillway type with a width of 30 feet and no outlet gates. The risk assessment for this dam is moderate, indicating a level 3 risk. While there are no associated structures or locks, Charlotte is under state regulation, permitting, inspection, and enforcement by the SEO agency. The congressional representative for this district is Liz Cheney (R) from Congressional District 00, Wyoming.

Water resource and climate enthusiasts in the Charlotte area will find this private dam an essential feature for fire protection, stock, and small fish pond purposes. With a moderate risk assessment and fair condition, ongoing inspection and maintenance are crucial to ensure the safety and efficiency of Charlotte. Its location along the CHARLOTTE DRAW river in Natrona, Wyoming, adds to its significance in the local water resource management landscape.

StateNone
River / streamCharlotte Draw
NID IDWY01121
Owner typePrivate
Primary purposeFire Protection, Stock, Or Small Fish Pond
Dam typeEarth
Year built1958
Dam height25 ft
Dam length462 ft
Max storage44 AF
Normal storage24 AF
Surface area3.0 ac
Hazard potentialLow
ConditionFair
Last inspectionThu, 01 Jul 2021 12:00:00 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 Charlotte -- inflows here typically show up in storage 24-72 hours later.

Track Charlotte 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 Charlotte

Where does the data for Charlotte 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.

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