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

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- Total high-hazard dams: 7
- Number potentially dangerous: 1 (14.3%)
- Potentially dangerous dams include:
--- 1 not rated

#45. Elmore County
Riley Camp // Shutterstock

- Total high-hazard dams: 2
- Number potentially dangerous: 1 (50.0%)
- Potentially dangerous dams include:
--- 1 in poor condition

#44. St. Clair County
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- Total high-hazard dams: 3
- Number potentially dangerous: 2 (66.7%)
- Potentially dangerous dams include:
--- 2 not rated

#43. Walker County
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- Total high-hazard dams: 3
- Number potentially dangerous: 2 (66.7%)
- Potentially dangerous dams include:
--- 2 not rated

#42. Chilton County
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- Total high-hazard dams: 7
- Number potentially dangerous: 6 (85.7%)
- Potentially dangerous dams include:
--- 6 not rated

#41. Lee County
Wayne James // Shutterstock

- Total high-hazard dams: 1
- Number potentially dangerous: 1 (100.0%)
- Potentially dangerous dams include:
--- 1 not rated

#40. Colbert County
Carl Banks Photography // Shutterstock

- Total high-hazard dams: 1
- Number potentially dangerous: 1 (100.0%)
- Potentially dangerous dams include:
--- 1 not rated

#39. Jackson County
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- Total high-hazard dams: 1
- Number potentially dangerous: 1 (100.0%)
- Potentially dangerous dams include:
--- 1 not rated

#38. Escambia County
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- Total high-hazard dams: 1
- Number potentially dangerous: 1 (100.0%)
- Potentially dangerous dams include:
--- 1 not rated

#37. Lawrence County
Jennifer Kinkead McNutt // Shutterstock

- Total high-hazard dams: 1
- Number potentially dangerous: 1 (100.0%)
- Potentially dangerous dams include:
--- 1 condition withheld

#36. Marion County
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- Total high-hazard dams: 1
- Number potentially dangerous: 1 (100.0%)
- Potentially dangerous dams include:
--- 1 not rated

#35. Winston County
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- Total high-hazard dams: 1
- Number potentially dangerous: 1 (100.0%)
- Potentially dangerous dams include:
--- 1 not rated

#34. Bibb County
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- Total high-hazard dams: 1
- Number potentially dangerous: 1 (100.0%)
- Potentially dangerous dams include:
--- 1 not rated

#33. Marengo County
JNix // Shutterstock

- Total high-hazard dams: 1
- Number potentially dangerous: 1 (100.0%)
- Potentially dangerous dams include:
--- 1 not rated

#32. Pickens County
Leah G Moloney // Shutterstock

- Total high-hazard dams: 1
- Number potentially dangerous: 1 (100.0%)
- Potentially dangerous dams include:
--- 1 not rated

#31. Hale County
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- Total high-hazard dams: 1
- Number potentially dangerous: 1 (100.0%)
- Potentially dangerous dams include:
--- 1 not rated

#30. Lamar County
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- Total high-hazard dams: 1
- Number potentially dangerous: 1 (100.0%)
- Potentially dangerous dams include:
--- 1 not rated

#29. Crenshaw County
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- Total high-hazard dams: 1
- Number potentially dangerous: 1 (100.0%)
- Potentially dangerous dams include:
--- 1 not rated

#28. Conecuh County
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- Total high-hazard dams: 2
- Number potentially dangerous: 2 (100.0%)
- Potentially dangerous dams include:
--- 2 not rated

#27. Mobile County
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- Total high-hazard dams: 2
- Number potentially dangerous: 2 (100.0%)
- Potentially dangerous dams include:
--- 2 not rated

#26. Madison County
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- Total high-hazard dams: 2
- Number potentially dangerous: 2 (100.0%)
- Potentially dangerous dams include:
--- 2 not rated

#25. Houston County
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- Total high-hazard dams: 2
- Number potentially dangerous: 2 (100.0%)
- Potentially dangerous dams include:
--- 2 not rated

#24. Limestone County
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- Total high-hazard dams: 2
- Number potentially dangerous: 2 (100.0%)
- Potentially dangerous dams include:
--- 2 condition withheld

#23. Marshall County
Wayne James // Shutterstock

- Total high-hazard dams: 2
- Number potentially dangerous: 2 (100.0%)
- Potentially dangerous dams include:
--- 2 condition withheld

#22. Lauderdale County
JNix // Shutterstock

- Total high-hazard dams: 2
- Number potentially dangerous: 2 (100.0%)
- Potentially dangerous dams include:
--- 2 not rated

#21. Autauga County
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- Total high-hazard dams: 2
- Number potentially dangerous: 2 (100.0%)
- Potentially dangerous dams include:
--- 2 not rated

#20. Dale County
Mccallk69 // Shutterstock

- Total high-hazard dams: 2
- Number potentially dangerous: 2 (100.0%)
- Potentially dangerous dams include:
--- 2 not rated

#19. Macon County
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- Total high-hazard dams: 2
- Number potentially dangerous: 2 (100.0%)
- Potentially dangerous dams include:
--- 2 not rated

#18. Fayette County
JNix // Shutterstock

- Total high-hazard dams: 2
- Number potentially dangerous: 2 (100.0%)
- Potentially dangerous dams include:
--- 1 not rated
--- 1 condition withheld

#17. Clay County
JNix // Shutterstock

- Total high-hazard dams: 3
- Number potentially dangerous: 3 (100.0%)
- Potentially dangerous dams include:
--- 3 not rated

#16. Chambers County
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- Total high-hazard dams: 4
- Number potentially dangerous: 4 (100.0%)
- Potentially dangerous dams include:
--- 4 not rated

#15. Montgomery County
John H. Davis // Shutterstock

- Total high-hazard dams: 4
- Number potentially dangerous: 4 (100.0%)
- Potentially dangerous dams include:
--- 4 not rated

#14. Russell County
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- Total high-hazard dams: 4
- Number potentially dangerous: 4 (100.0%)
- Potentially dangerous dams include:
--- 4 not rated

#13. Coffee County
Curtis Lee Newton // Shutterstock

- Total high-hazard dams: 4
- Number potentially dangerous: 4 (100.0%)
- Potentially dangerous dams include:
--- 1 not rated
--- 3 condition withheld

#12. Franklin County
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- Total high-hazard dams: 5
- Number potentially dangerous: 5 (100.0%)
- Potentially dangerous dams include:
--- 5 not rated

#11. Dallas County
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- Total high-hazard dams: 6
- Number potentially dangerous: 6 (100.0%)
- Potentially dangerous dams include:
--- 6 not rated

#10. Etowah County
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- Total high-hazard dams: 6
- Number potentially dangerous: 6 (100.0%)
- Potentially dangerous dams include:
--- 6 not rated

#9. Cullman County
EWY Media // Shutterstock

- Total high-hazard dams: 7
- Number potentially dangerous: 7 (100.0%)
- Potentially dangerous dams include:
--- 1 posing immediate threat
--- 6 not rated

#8. Calhoun County
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- Total high-hazard dams: 8
- Number potentially dangerous: 8 (100.0%)
- Potentially dangerous dams include:
--- 8 not rated

#7. DeKalb County
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- Total high-hazard dams: 8
- Number potentially dangerous: 8 (100.0%)
- Potentially dangerous dams include:
--- 8 not rated

#6. Cleburne County
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- Total high-hazard dams: 10
- Number potentially dangerous: 10 (100.0%)
- Potentially dangerous dams include:
--- 8 not rated
--- 2 condition withheld

#5. Talladega County
JNix // Shutterstock

- Total high-hazard dams: 19
- Number potentially dangerous: 19 (100.0%)
- Potentially dangerous dams include:
--- 19 not rated

#4. Blount County
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- Total high-hazard dams: 20
- Number potentially dangerous: 20 (100.0%)
- Potentially dangerous dams include:
--- 20 not rated

#3. Jefferson County
JNix // Shutterstock

- Total high-hazard dams: 23
- Number potentially dangerous: 23 (100.0%)
- Potentially dangerous dams include:
--- 23 not rated

#2. Shelby County
Tracy Burroughs Brown // Shutterstock

- Total high-hazard dams: 26
- Number potentially dangerous: 26 (100.0%)
- Potentially dangerous dams include:
--- 24 not rated
--- 2 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. Tuscaloosa County
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