Rialto Bridge spans the original and disused portion of the Grand Canal which now forms part of the Luas Red Line.
The original portion of the Grand Canal running along the northern edge of Rialto and Fatima has in recent decades been repurposed as the Luas Red Line route connecting Dublin's Docklands at The Point and the city's southwestern suburbs at Tallaght.
St James Walk/Colbert Fort is a small triangular area in Rialto with surrounding features including the Grand Canal and the River Poddle.
Unfortunately due to many different problems such as the plan to widen the road, lack of men and materials and on top of that a strike run by the craftsmen the project was not complete in the time frame given.
St James's Walk then became Colbert's Fort; the streets commemorated Mallin, Clarke and MacCarthy.