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

- Total high-hazard dams: 15
- Number potentially dangerous: 1 (6.7%)
- Potentially dangerous dams include:
--- 1 in poor condition
- Total high-hazard dams: 10
- Number potentially dangerous: 1 (10.0%)
- Potentially dangerous dams include:
--- 1 in poor condition

- Total high-hazard dams: 19
- Number potentially dangerous: 2 (10.5%)
- Potentially dangerous dams include:
--- 2 not rated
- Total high-hazard dams: 8
- Number potentially dangerous: 1 (12.5%)
- Potentially dangerous dams include:
--- 1 not rated

- Total high-hazard dams: 8
- Number potentially dangerous: 1 (12.5%)
- Potentially dangerous dams include:
--- 1 in poor condition
- Total high-hazard dams: 8
- Number potentially dangerous: 1 (12.5%)
- Potentially dangerous dams include:
--- 1 not rated

- Total high-hazard dams: 16
- Number potentially dangerous: 2 (12.5%)
- Potentially dangerous dams include:
--- 2 not rated

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

- Total high-hazard dams: 19
- Number potentially dangerous: 3 (15.8%)
- Potentially dangerous dams include:
--- 1 in poor condition
--- 2 not rated

- Total high-hazard dams: 6
- Number potentially dangerous: 1 (16.7%)
- Potentially dangerous dams include:
--- 1 not rated

- Total high-hazard dams: 17
- Number potentially dangerous: 3 (17.6%)
- Potentially dangerous dams include:
--- 1 in poor condition
--- 1 not rated
--- 1 condition withheld

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

- Total high-hazard dams: 5
- Number potentially dangerous: 1 (20.0%)
- Potentially dangerous dams include:
--- 1 condition withheld
- Total high-hazard dams: 15
- Number potentially dangerous: 3 (20.0%)
- Potentially dangerous dams include:
--- 1 posing immediate threat
--- 1 in poor condition
--- 1 not rated

- Total high-hazard dams: 13
- Number potentially dangerous: 3 (23.1%)
- Potentially dangerous dams include:
--- 2 in poor condition
--- 1 condition withheld

- Total high-hazard dams: 16
- Number potentially dangerous: 4 (25.0%)
- Potentially dangerous dams include:
--- 2 not rated
--- 2 condition withheld

- Total high-hazard dams: 15
- Number potentially dangerous: 4 (26.7%)
- Potentially dangerous dams include:
--- 2 posing immediate threat
--- 1 in poor condition
--- 1 not rated

- Total high-hazard dams: 7
- Number potentially dangerous: 2 (28.6%)
- Potentially dangerous dams include:
--- 1 in poor condition
--- 1 not rated

- Total high-hazard dams: 10
- Number potentially dangerous: 3 (30.0%)
- Potentially dangerous dams include:
--- 1 posing immediate threat
--- 1 in poor condition
--- 1 condition withheld
- Total high-hazard dams: 3
- Number potentially dangerous: 1 (33.3%)
- Potentially dangerous dams include:
--- 1 not rated

- Total high-hazard dams: 3
- Number potentially dangerous: 1 (33.3%)
- Potentially dangerous dams include:
--- 1 in poor condition
- Total high-hazard dams: 6
- Number potentially dangerous: 2 (33.3%)
- Potentially dangerous dams include:
--- 1 in poor condition
--- 1 not rated
- Total high-hazard dams: 11
- Number potentially dangerous: 4 (36.4%)
- Potentially dangerous dams include:
--- 1 in poor condition
--- 2 not rated
--- 1 condition withheld

- Total high-hazard dams: 22
- Number potentially dangerous: 8 (36.4%)
- Potentially dangerous dams include:
--- 1 posing immediate threat
--- 6 in poor condition
--- 1 condition withheld

- Total high-hazard dams: 5
- Number potentially dangerous: 2 (40.0%)
- Potentially dangerous dams include:
--- 1 not rated
--- 1 condition withheld

- Total high-hazard dams: 5
- Number potentially dangerous: 2 (40.0%)
- Potentially dangerous dams include:
--- 2 condition withheld

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

- Total high-hazard dams: 13
- Number potentially dangerous: 6 (46.2%)
- Potentially dangerous dams include:
--- 1 posing immediate threat
--- 2 not rated
--- 3 condition withheld
- Total high-hazard dams: 2
- Number potentially dangerous: 1 (50.0%)
- Potentially dangerous dams include:
--- 1 condition withheld

- Total high-hazard dams: 2
- Number potentially dangerous: 1 (50.0%)
- Potentially dangerous dams include:
--- 1 condition withheld
- Total high-hazard dams: 4
- Number potentially dangerous: 2 (50.0%)
- Potentially dangerous dams include:
--- 2 condition withheld

- Total high-hazard dams: 9
- Number potentially dangerous: 5 (55.6%)
- Potentially dangerous dams include:
--- 3 not rated
--- 2 condition withheld

- Total high-hazard dams: 13
- Number potentially dangerous: 8 (61.5%)
- Potentially dangerous dams include:
--- 8 condition withheld

- Total high-hazard dams: 8
- Number potentially dangerous: 5 (62.5%)
- Potentially dangerous dams include:
--- 1 in poor condition
--- 4 not rated
- Total high-hazard dams: 8
- Number potentially dangerous: 5 (62.5%)
- Potentially dangerous dams include:
--- 1 posing immediate threat
--- 3 in poor condition
--- 1 not rated

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

- Total high-hazard dams: 6
- Number potentially dangerous: 4 (66.7%)
- Potentially dangerous dams include:
--- 1 in poor condition
--- 3 condition withheld
- Total high-hazard dams: 12
- Number potentially dangerous: 8 (66.7%)
- Potentially dangerous dams include:
--- 1 posing immediate threat
--- 1 in poor condition
--- 2 not rated
--- 4 condition withheld
- Total high-hazard dams: 10
- Number potentially dangerous: 8 (80.0%)
- Potentially dangerous dams include:
--- 8 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: 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:
--- 1 posing immediate threat
--- 1 condition withheld

- Total high-hazard dams: 2
- Number potentially dangerous: 2 (100.0%)
- Potentially dangerous dams include:
--- 1 in poor condition
--- 1 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.
