There is some opposition between regulars as to which of the bridges is Spuggies Bridge, though, it now seems possible that there could have been more than one bridge named Spuggies, due to the large amount of sparrows in those areas.
Ray Daglish says that over one hundred years ago his grandfather called the Mill Lane railway bridge ‘Spuggies’.
My dad, Davy Cram, wrote that ninety-one years ago, in 1928, that he and some of his friends crossed over the Spuggie’s Bridge, on Lukes Lane.
These bridges, although known by many locals as Spuggies, seem never to have been officially named, which was quite common in those far-off days of the twenties and beyond, when towns were still developing.
None of the maps show any of the bridges as having official names and there is no mention of any Spuggies Bridge, in local newspapers.
The Land Trust: http://thelandtrust.org.uk/wp-content/uploads/2017/04/Spuggies-Stroll-Monkton.pdf names the Mill Lane railway bridge as Spuggies… whether they gathered that information from an official source is unknown… I contacted them 4 days ago with that question and I am awaiting a reply.
The following 1862 map shows that the land where the Coke Works later sat, and the land where Lukes Lane Estate now stands is shown as in Jarrow.