The 1989-90 Ottawa District Intermediate championship was won by the Smiths Falls Rideaus. They lost in the 1989-90 Eastern Canada Intermediate Playoffs final to the Maritime and eventual Hardy Cup champion Dartmouth Moosehead Mounties, three games to two.
Eastern Ontario Senior AA League[]
- Standings
- Smiths Falls 16-8-0 32 188:131
- Almonte 12-6-4 28 174:145
- Manotick 12-7-4 28 162:106
- Cardinal 9-10-3 21 160:159
- Lanark 3-19-0 7 79:222
- Elimination series
Teams were eliminated after their fifth loss.
As of 3/22:
- Smiths Falls 59:29, 0 losses
- Manotick 45:38, 4 losses
- Almonte 45:53, 5 losses
- Cardinal 33:44, 5 losses
- Lanark 8:26, 5 losses
- 3/23: Smiths Falls beat Manotick and eliminated them