TORONTO, Ont. – A heads-up if you’re a regular TTC rider.

The Yonge-University-Spadina line will be closed between Union and St. Andrew stations this weekend.

It’s because of ongoing construction to build a second platform at Union station.

It will affect trains all-day Saturday and Sunday, but regular service will resume at 6 a.m. Monday.

TTC riders can use the 506 Carlton, 505 Dundas, 501 Queen or 504 King streetcar routes to connect to the other subway line.

There will be an accessible Wheel-Trans vehicle available to transport passengers between the two stations.