The TTC is detouring buses operating on the 63 Ossington (main route to and from Eglinton West Station), 63A Ossington (short-turn branch to and from St. Clair), 161 Rogers Rd and 316 Ossington (overnight) routes during the project. Buses operating on the 312 St.Clair (overnight) and 512 St. Clair services will operate along their regular routes.

63 Ossington

From 6 a.m. on Friday, August 7 until 7 a.m. on Monday, August 10, southbound buses operating from Eglinton West Station proceed along their regular route to Oakwood and Glenhurst Avenues, then detour:

eastward along Glenhurst;
southward along Winona Avenue; and then
eastward along St. Clair Avenue West;
southward along Christie Street; and then
westward along Davenport Road to Ossington Avenue,
resuming their regular route southward along Ossington.

Northbound buses operating toward Eglinton West Station proceed along their regular route to Oakwood Avenue and Rosemount Avenue, then detour:

westward along Rosemount;
northward along Glenholme Avenue; and then
eastward along Conway Avenue to Oakwood,
resuming their regular route northward along Oakwood.

63A Ossington

After 6 a.m. on Friday, August 7 and before 7 a.m. on Monday, August 10, southbound buses that usually short turn at St. Clair start their trips, instead, at Davenport Road and Ossington Avenue, proceeding along their regular route southward along Ossington.

Northbound buses short-turning at St. Clair operate along their regular route to Ossington and Geary Avenues, then detour:

westward along Geary;
northward along Dovercourt Road; and then
eastward along Davenport Road to Ossington Avenue,
ending their trips.

316 Ossington overnight

After about 2 a.m. on Saturday, August 8, Sunday, August 9 and Monday, August 10, southbound buses operate along their regular route to Oakwood and Glenhurst Avenues, then detour:

eastward along Glenhurst;
southward along Winona Avenue; and then
eastward along St. Clair Avenue West;
southward along Christie Street; and then
westward along Davenport Road to Ossington Avenue,
resuming their regular route southward along Ossington.

Northbound buses operating toward Eglinton West Station proceed along their regular route to Oakwood Avenue and Rosemount Avenue, then detour:

westward along Rosemount;
northward along Glenholme Avenue; and then
eastward along Conway Avenue to Oakwood,
resuming their regular route northward along Oakwood.

161 Rogers Rd

From 6 a.m. on Friday, August 7 until 7 a.m. on Monday, August 10, southbound buses operate along their regular route to Oakwood and Glenhurst Avenues, then detour:

eastward along Glenhurst;
southward along Winona Avenue; and then
eastward along St. Clair Avenue West;
southward along Christie Street; and then
westward along Davenport Road to Dovercourt Road,
resuming their regular route southward along Dovercourt.

Northbound buses operating toward Eglinton West Station proceed along their regular route to Oakwood Avenue and Rosemount Avenue, then detour:

westward along Rosemount;
northward along Glenholme Avenue; and then
eastward along Conway Avenue to Oakwood,
resuming their regular route northward along Oakwood.

This work at Oakwood and St. Clair is a key part of Phase 3 of the ongoing City of Toronto and TTC project to build a dedicated light rail right-of-way along St. Clair. You can read more about the project here and here.

Construction at Oakwood and St. Clair during this project has previously detoured bus service from October 20 until November 7, 2008 and from June 22 until July 9, 2009

The TTC and City still plan to re-introduce streetcar service along St. Clair Avenue west between Earlscourt Loop (Lansdowne Avenue) and St. Clair Station (at Yonge Street) this fall.

The Transit Toronto archives contains lots of information on the history of transit along Oakwood and St. Clair Avenues:

• You can read James Bow’s account of the history and future of streetcar service along St. Clair, including a profile of the 512 St. Clair route here.
• You can read James Bow’s history of the former Earlscourt streetcar route — which also operated along St. Clair — here.
• You can read James Bow’s history of the former Oakwood and Rogers Road streetcar routes here. (Both routes traveled along Oakwood and through the Oakwood Loop.)
• You can read a history of the former Ossington trolley coach route here.