Risky reservoirs: Connecticut counties where aging dams pose the greatest threat

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- Total high-hazard dams: 17
- Number potentially dangerous: 1 (5.9%)
- Potentially dangerous dams include:
--- 1 in poor condition

#8. Middlesex County
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- Total high-hazard dams: 51
- Number potentially dangerous: 4 (7.8%)
- Potentially dangerous dams include:
--- 3 in poor condition
--- 1 not rated

#7. Fairfield County
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- Total high-hazard dams: 60
- Number potentially dangerous: 7 (11.7%)
- Potentially dangerous dams include:
--- 5 in poor condition
--- 2 condition withheld

#6. New Haven County
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- Total high-hazard dams: 51
- Number potentially dangerous: 7 (13.7%)
- Potentially dangerous dams include:
--- 5 in poor condition
--- 2 not rated

#5. Hartford County
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- Total high-hazard dams: 47
- Number potentially dangerous: 8 (17.0%)
- Potentially dangerous dams include:
--- 1 not rated
--- 7 condition withheld

#4. Litchfield County
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- Total high-hazard dams: 19
- Number potentially dangerous: 4 (21.1%)
- Potentially dangerous dams include:
--- 4 in poor condition

#3. New London County
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- Total high-hazard dams: 12
- Number potentially dangerous: 3 (25.0%)
- Potentially dangerous dams include:
--- 3 condition withheld

#2. Windham County
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- Total high-hazard dams: 17
- Number potentially dangerous: 6 (35.3%)
- Potentially dangerous dams include:
--- 2 in poor condition
--- 4 condition withheld

This story features data reporting by Paxtyn Merten, writing by Dom DiFurio, and is part of a series utilizing data automation across 50 states.

#1. Tolland County
Denis Morin // Shutterstock