The pedestrian bridge at Union Station is getting a facelift, with Mayor David Miller and other city officials kicking off the restoration project Friday morning. 

The bridge consists of a large area in the front of the station, running along Front Street from the front of the station to the sidewalk.

The current bridge is in a state of disrepair, and Miller says fixing the aging structure is at the top of the city's agenda.

Construction on the bridge is expected to take 15 months. Miller is asking for the support, patience and co-operation of all passengers while it's being rebuilt.

Union Station serves more passengers per year than all three terminals at Pearson Airport.

"Union Station is the busiest and most important transportation hub in the country," said Miller in a statement released Friday. "The City of Toronto is proud to be leading the revitalization of this essential part of our history."