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- u.s. army engineer district, louisville66
- u.s. army corps of engineers, louisville district21
- u.s. army engineer research and development center (erdc)15
- us army corps of engineers, louisville district13
- u.s. army engineer waterways experiment station6
- us army corps of engineers, nashville district6
- united states army corps of engineers, louisville district5
- us army corps of engineers5
- office of the chief of engineers, department of the army4