Johnson County Dam Report Card
F
Grade
338
Score
14
High Hazard
Johnson County has 178 dams in the federal inventory. The county's report-card score is driven by 14 high-hazard dams, 56 poor or unsatisfactory condition records, 2 high-hazard dams without a recorded Emergency Action Plan, and 0 high-hazard dams with blank or older inspection dates.
Interpretation: higher scores identify places where public records deserve closer review. The score does not predict failure probability and should be checked against official state and local dam-safety sources.
Report Card Fields
| Total Dams | 178 |
| High Hazard | 14 |
| Significant Hazard | 8 |
| Poor/Unsatisfactory | 56 |
| High Hazard Missing EAP | 2 |
Story Kit
- Ask state dam-safety officials which of the 14 high-hazard dams have current inspections and emergency plans.
- Check whether poor/unsatisfactory condition records have since been repaired or reclassified.
- Use the county CSV to identify dams, owners, and inspection fields for follow-up.