Dam Report

Bonnie Lake Mine Nw dam

Florida, USA Alafia River Hazard Low
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Dam height
15ft
Hazard rating
Low
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Bonnie Lake Mine Nw -- None dam
Bonnie Lake Mine Nw None · Alafia River
About this dam

Bonnie Lake Mine Nw

Bonnie Lake Mine NW is a privately owned structure located in Bartow, Polk County, Florida. This tailings dam, completed in 1995, serves the primary purpose of storing tailings with a height of 15 feet and a length of 4641 feet. The dam is classified as an Earth dam with a stone core and soil foundation, holding a maximum storage capacity of 600 acre-feet and a normal storage of 530 acre-feet. The dam is regulated by the Florida Department of Environmental Protection (FDEP) and undergoes regular inspections, enforcement, and permitting processes to ensure its safety and compliance with state regulations.

Situated along the Alafia River, the Bonnie Lake Mine NW dam has a low hazard potential and a moderate risk assessment rating. Despite its uncontrolled spillway type, the dam has a spillway width of 6 feet to manage potential excess water discharge. The structure has not been modified in recent years and is currently in a not-rated condition assessment status. The last inspection date for the dam was in January 2006, indicating a need for updated assessment and emergency action preparedness to meet guidelines and ensure the safety of the surrounding area in case of potential inundation events.

With its strategic location and significant role in water resource management, Bonnie Lake Mine NW serves as a crucial component in environmental conservation efforts in Florida. As climate change and water scarcity become increasing concerns, the proper maintenance and monitoring of such structures are essential to prevent potential risks and ensure the sustainability of water resources in the region. By staying informed and up-to-date on the dam's condition and regulatory compliance, water resource and climate enthusiasts can contribute to the preservation of the Alafia River ecosystem and promote a more resilient water management system in the face of changing environmental conditions.

StateNone
River / streamAlafia River
NID IDFL13337
Owner typePrivate
Primary purposeTailings
Dam typeEarth
Year built1995
Dam height15 ft
Dam length4,641 ft
Max storage600 AF
Normal storage530 AF
Surface area53.0 ac
Drainage area0.1 sq mi
Hazard potentialLow
ConditionNot Rated
Last inspectionFri, 20 Jan 2006 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 Bonnie Lake Mine Nw -- inflows here typically show up in storage 24-72 hours later.

Track Bonnie Lake Mine Nw 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 Bonnie Lake Mine Nw

Where does the data for Bonnie Lake Mine Nw 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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