Through the fall and winter of 2017-18, the TTC will be converting all remaining stations and entrances to use fare gates and Presto card readers. There are station-specific notices, but for readers’ convenience I have consolidated all of the information here. The first two pages of the following pdf contain the information in textual format, and the remainder is a Gantt chart. The information is current as of September 9, 2017. Stations are in sequence by line. If a station is not shown, either it has already been converted or the TTC has published no information about it.

2017_TTC_Presto_Station_Closings

There are variations on the way the program will roll out depending on the station.

Some entrances/stations will not close for this project, but will be converted in stages with access maintained throughout construction for passengers.

Some entrances/stations will have only selective late night closings (generally after 11pm), and work will otherwise take place maintaining a pathway for passengers.

Some stations/entrances will close completely for some or all of the conversion project. There will be weekend closings for selected stations in the downtown “U” on Line 1 YUS, but many of the secondary entrances will close completely for over a month.

During construction, riders will not be able to purchase fare media from the station collectors while their booths are close.

Even after the shutdown periods, work will continue at some locations for an extended period.

Following the conversion, riders will still be able to pay with all fare media at the main entrance of stations, but the secondary entrances will support either a combination of Metropasses and Presto, or only Presto in some cases. Details are in the linked chart.

Postscript: Notices for the closing of stations on lower Yonge Street include the following info:

During the early and weekend closures subway trains will not stop at the station. Customers should use [nearby] stations to access the subway or board a northbound or southbound 97 Yonge bus.

Of course, the 97 Yonge bus does not run on lower Yonge Street except during weekday peaks when the stations will be open. The TTC has been advised of this and will, in due course, fix the affected pages. No need to kvetch here in the comments.