Effective Monday June 27, 2011, all route 19 buses will use the following detour due to road construction:
- Outbound 19: Via Phillips to Haverhill (L), Berdan (R), Upton (R), Sylvania (L), to regular route.
- Outbound 19T, 19S: Via Phillips to Haverhill (L), Berdan (R), Jackman (R), Sylvania (L), to regular route.
- Inbound 19: Via Sylvania to Upton (R), Berdan (L), Haverhill (L), Philllips (R), to regular route.
- Inbound 19T, 19S: Via Tremainsville to Jackman (R), Berdan (L), Haverhill (L), Philllips (R), to regular route.