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

Canva

- Total high-hazard dams: 10
- Number potentially dangerous: 1 (10.0%)
- Potentially dangerous dams include:
--- 1 in poor condition

#42. Lamar County
Canva

- Total high-hazard dams: 22
- Number potentially dangerous: 3 (13.6%)
- Potentially dangerous dams include:
--- 3 posing immediate threat

#41. Rankin County
Canva

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

#40. Forrest County
Chad Robertson Media // Shutterstock

- Total high-hazard dams: 5
- Number potentially dangerous: 1 (20.0%)
- Potentially dangerous dams include:
--- 1 in poor condition

#39. Jones County
Canva

- Total high-hazard dams: 8
- Number potentially dangerous: 2 (25.0%)
- Potentially dangerous dams include:
--- 2 in poor condition

#38. Pontotoc County
Canva

- Total high-hazard dams: 31
- Number potentially dangerous: 8 (25.8%)
- Potentially dangerous dams include:
--- 4 posing immediate threat
--- 4 in poor condition

#37. Madison County
Canva

- Total high-hazard dams: 27
- Number potentially dangerous: 7 (25.9%)
- Potentially dangerous dams include:
--- 2 posing immediate threat
--- 3 in poor condition
--- 1 not rated
--- 1 condition withheld

#36. Lauderdale County
Canva

- Total high-hazard dams: 3
- Number potentially dangerous: 1 (33.3%)
- Potentially dangerous dams include:
--- 1 in poor condition

#35. Kemper County
Monarch Productions // Shutterstockk

- Total high-hazard dams: 24
- Number potentially dangerous: 8 (33.3%)
- Potentially dangerous dams include:
--- 3 posing immediate threat
--- 3 in poor condition
--- 1 not rated
--- 1 condition withheld

#34. DeSoto County
Canva

- Total high-hazard dams: 17
- Number potentially dangerous: 6 (35.3%)
- Potentially dangerous dams include:
--- 3 posing immediate threat
--- 3 in poor condition

#33. Lee County
Canva

- Total high-hazard dams: 9
- Number potentially dangerous: 4 (44.4%)
- Potentially dangerous dams include:
--- 2 posing immediate threat
--- 1 in poor condition
--- 1 condition withheld

#32. Panola County
Canva

- Total high-hazard dams: 24
- Number potentially dangerous: 11 (45.8%)
- Potentially dangerous dams include:
--- 6 posing immediate threat
--- 5 in poor condition

#31. Hinds County
Canva

- Total high-hazard dams: 2
- Number potentially dangerous: 1 (50.0%)
- Potentially dangerous dams include:
--- 1 posing immediate threat

#30. Lowndes County
George Dodd III // Shutterstock

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

#29. Pearl River County
JMcQ // Shutterstock

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

#28. Alcorn County
Norm Lane // Shutterstock

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

#27. Lincoln County
Canva

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

#26. Simpson County
Canva

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

#25. Webster County
Canva

- Total high-hazard dams: 6
- Number potentially dangerous: 3 (50.0%)
- Potentially dangerous dams include:
--- 1 posing immediate threat
--- 2 in poor condition

#24. Adams County
Canva

- Total high-hazard dams: 8
- Number potentially dangerous: 4 (50.0%)
- Potentially dangerous dams include:
--- 2 posing immediate threat
--- 1 in poor condition
--- 1 condition withheld

#23. Yalobusha County
Canva

- Total high-hazard dams: 3
- Number potentially dangerous: 2 (66.7%)
- Potentially dangerous dams include:
--- 1 posing immediate threat
--- 1 condition withheld

#22. Grenada County
SevenMaps // Shutterstock

- Total high-hazard dams: 3
- Number potentially dangerous: 2 (66.7%)
- Potentially dangerous dams include:
--- 2 in poor condition

#21. Newton County
Canva

- Total high-hazard dams: 3
- Number potentially dangerous: 2 (66.7%)
- Potentially dangerous dams include:
--- 2 in poor condition

#20. Smith County
Canva

- Total high-hazard dams: 7
- Number potentially dangerous: 5 (71.4%)
- Potentially dangerous dams include:
--- 4 posing immediate threat
--- 1 condition withheld

#19. Warren County
Malachi Jacobs // Shutterstock

- Total high-hazard dams: 7
- Number potentially dangerous: 5 (71.4%)
- Potentially dangerous dams include:
--- 1 posing immediate threat
--- 4 in poor condition

#18. Yazoo County
Canva

- Total high-hazard dams: 11
- Number potentially dangerous: 8 (72.7%)
- Potentially dangerous dams include:
--- 1 posing immediate threat
--- 7 in poor condition

#17. Tallahatchie County
Canva

- Total high-hazard dams: 11
- Number potentially dangerous: 9 (81.8%)
- Potentially dangerous dams include:
--- 4 posing immediate threat
--- 5 in poor condition

#16. Lafayette County
Canva

- Total high-hazard dams: 21
- Number potentially dangerous: 18 (85.7%)
- Potentially dangerous dams include:
--- 7 posing immediate threat
--- 10 in poor condition
--- 1 not rated

#15. Carroll County
Canva

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

#14. Jackson County
Canva

- Total high-hazard dams: 1
- Number potentially dangerous: 1 (100.0%)
- Potentially dangerous dams include:
--- 1 posing immediate threat

#13. Oktibbeha County
Canva

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

#12. Itawamba County
Canva

- Total high-hazard dams: 1
- Number potentially dangerous: 1 (100.0%)
- Potentially dangerous dams include:
--- 1 posing immediate threat

#11. Covington County
Canva

- Total high-hazard dams: 1
- Number potentially dangerous: 1 (100.0%)
- Potentially dangerous dams include:
--- 1 posing immediate threat

#10. Chickasaw County
Canva

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

#9. Franklin County
Canva

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

#8. Marion County
Canva

- Total high-hazard dams: 2
- Number potentially dangerous: 2 (100.0%)
- Potentially dangerous dams include:
--- 2 posing immediate threat

#7. Montgomery County
Canva

- Total high-hazard dams: 3
- Number potentially dangerous: 3 (100.0%)
- Potentially dangerous dams include:
--- 2 posing immediate threat
--- 1 condition withheld

#6. Tishomingo County
Canva

- Total high-hazard dams: 3
- Number potentially dangerous: 3 (100.0%)
- Potentially dangerous dams include:
--- 3 in poor condition

#5. Benton County
Canva

- Total high-hazard dams: 4
- Number potentially dangerous: 4 (100.0%)
- Potentially dangerous dams include:
--- 2 posing immediate threat
--- 2 in poor condition

#4. Union County
Canva

- Total high-hazard dams: 4
- Number potentially dangerous: 4 (100.0%)
- Potentially dangerous dams include:
--- 1 posing immediate threat
--- 3 in poor condition

#3. Prentiss County
SevenMaps // Shutterstock

- Total high-hazard dams: 4
- Number potentially dangerous: 4 (100.0%)
- Potentially dangerous dams include:
--- 2 posing immediate threat
--- 2 in poor condition

#2. Calhoun County
Canva

- Total high-hazard dams: 7
- Number potentially dangerous: 7 (100.0%)
- Potentially dangerous dams include:
--- 2 posing immediate threat
--- 5 in poor condition

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. Tippah County
Justin Wilkens // Shutterstock