This was a double track eleven span viaduct built in timber and iron. The viaduct crossed over both the Figgate Burn and the Leith branch of the Edinburgh and Dalkeith Railway and at its western end was a connecting curve to that line (a west to south curve which also crossed a timber viaduct).
The viaduct was later dispensed with and this became the site of Portobello West Junction (this was located at roughly the eastern end of the viaduct).
Today the railway, the East Coast Main Line, remains a raised section of line with a bridge over Baileyfield Road (the E&DR ran down its western side here).