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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

- Total high-hazard dams: 4
- Number potentially dangerous: 4 (100.0%)
- Potentially dangerous dams include:
--- 4 condition withheld
- Total high-hazard dams: 4
- Number potentially dangerous: 4 (100.0%)
- Potentially dangerous dams include:
--- 4 condition withheld
- Total high-hazard dams: 4
- Number potentially dangerous: 4 (100.0%)
- Potentially dangerous dams include:
--- 4 condition withheld
- Total high-hazard dams: 4
- Number potentially dangerous: 4 (100.0%)
- Potentially dangerous dams include:
--- 4 condition withheld

- Total high-hazard dams: 4
- Number potentially dangerous: 4 (100.0%)
- Potentially dangerous dams include:
--- 4 condition withheld

- Total high-hazard dams: 4
- Number potentially dangerous: 4 (100.0%)
- Potentially dangerous dams include:
--- 4 condition withheld
- Total high-hazard dams: 4
- Number potentially dangerous: 4 (100.0%)
- Potentially dangerous dams include:
--- 4 condition withheld
- Total high-hazard dams: 4
- Number potentially dangerous: 4 (100.0%)
- Potentially dangerous dams include:
--- 4 condition withheld

- Total high-hazard dams: 4
- Number potentially dangerous: 4 (100.0%)
- Potentially dangerous dams include:
--- 4 condition withheld

- Total high-hazard dams: 4
- Number potentially dangerous: 4 (100.0%)
- Potentially dangerous dams include:
--- 4 condition withheld

- Total high-hazard dams: 5
- Number potentially dangerous: 5 (100.0%)
- Potentially dangerous dams include:
--- 5 condition withheld

- Total high-hazard dams: 6
- Number potentially dangerous: 6 (100.0%)
- Potentially dangerous dams include:
--- 6 condition withheld

- Total high-hazard dams: 6
- Number potentially dangerous: 6 (100.0%)
- Potentially dangerous dams include:
--- 6 condition withheld

- Total high-hazard dams: 6
- Number potentially dangerous: 6 (100.0%)
- Potentially dangerous dams include:
--- 6 condition withheld

- Total high-hazard dams: 7
- Number potentially dangerous: 7 (100.0%)
- Potentially dangerous dams include:
--- 7 condition withheld
- Total high-hazard dams: 7
- Number potentially dangerous: 7 (100.0%)
- Potentially dangerous dams include:
--- 7 condition withheld

- Total high-hazard dams: 7
- Number potentially dangerous: 7 (100.0%)
- Potentially dangerous dams include:
--- 7 condition withheld
- Total high-hazard dams: 7
- Number potentially dangerous: 7 (100.0%)
- Potentially dangerous dams include:
--- 7 condition withheld

- Total high-hazard dams: 7
- Number potentially dangerous: 7 (100.0%)
- Potentially dangerous dams include:
--- 7 condition withheld
- Total high-hazard dams: 7
- Number potentially dangerous: 7 (100.0%)
- Potentially dangerous dams include:
--- 7 condition withheld

- Total high-hazard dams: 8
- Number potentially dangerous: 8 (100.0%)
- Potentially dangerous dams include:
--- 8 condition withheld
- Total high-hazard dams: 8
- Number potentially dangerous: 8 (100.0%)
- Potentially dangerous dams include:
--- 8 condition withheld

- Total high-hazard dams: 10
- Number potentially dangerous: 10 (100.0%)
- Potentially dangerous dams include:
--- 10 condition withheld

- Total high-hazard dams: 12
- Number potentially dangerous: 12 (100.0%)
- Potentially dangerous dams include:
--- 12 condition withheld
- Total high-hazard dams: 15
- Number potentially dangerous: 15 (100.0%)
- Potentially dangerous dams include:
--- 15 condition withheld

- Total high-hazard dams: 16
- Number potentially dangerous: 16 (100.0%)
- Potentially dangerous dams include:
--- 16 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.
