Major chemical siteFreight to Trimpells, a consortium of Trinidad Asphalt, ICI and Shell.
According to Quick's Chronology, Middleton Road (alias Middleton Road Bridge) was opened 1904-07-11 (with the line) (note in Quick 'not even in company tt'), closed 1905-06. As he is reckoned as the authority, I would regard any subsequent reopening very doubtful.According to Wikipedia, but checked against heyshamheritage.org.uk , there was Middleton Road Bridge Halt on the outskirts of Heysham that was open for one year in 1904-1905. The line itself was always primarily for the ship connection, but local services did run to Lancaster (LNWR), though mostly for staff at the harbour. I think that local goods facilities did exist, but were only small scale.
EDIT: A more thorough read of the Heysham site suggests that W.pedia is wrong or incomplete, and the halt was either open for longer or reopened at a later date, possibly the start of electric services.