Water control operations, 1981.
- SCA205-GA183-14-183
- File
- 1981
Consists of ts. and ms. river watch reports and transcripts of telephone calls regarding ice, water flow and flood conditions on the Grand River and its tributaries. Also includes ms.and ts.(original and photocopy) test and actual flood warning advisory messages issued by the Grand River Conservation Authority to member municipalities and police forces.
Grand River Conservation Authority