Harrison Av & Tremont is blocked by accident. Rt 21 will detour in both directions:
In:
Via-Harrison
L-Fairmount
R-Blaine
to bare L-onto Waverly
R-Beekman
R-Queen city
L-Harrison
Outbound:
Via- upper deck of whs viaduct
R-Beekman
L-Waverly to bare right onto Blaine
L-Fairmount
R-Harrison
thanks