The TTC is closing all of Line 4 (Sheppard) this weekend, Saturday, March 4 and Sunday, March 5, while crews maintain the line.

Shuttle buses operate between Don Mills and Sheppard - Yonge stations, stopping only at subway stations along the route. Passengers wishing to travel to points between stations should board buses operating along the 85 Sheppard East route.

All stations will be open to sell fares, while the line is closed.

Regular subway service resumes 6 a.m., Monday, March 6.

According to a TTC news release,

“While the TTC does much of its subway maintenance work at the conclusion of service each night, it continues to require weekend closures to complete important state-of-good-repair work, like replacing track and maintaining switches. One weekend of work during a closure is equivalent to about five weeks of nightly work.”

The TTC has not scheduled any more closures of Line 4 this year.