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 Dams178
High Hazard14
Significant Hazard8
Poor/Unsatisfactory56
High Hazard Missing EAP2

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.