Quarterbridge (The Quarters or Quarter Dub: quarterlands of Ballabrooie and Ballaquayle)[1] is situated soon after the 1 mile-marker measured from the TT Grandstand, part of the Snaefell Mountain Course used for the Isle of Man TT races, at the junction of the primary A1 Douglas to Peel road, A2 Douglas to Ramsey road and the A5 Douglas to Port Erin road which forms the boundary between the parishes of Braddan and Onchan in the Isle of Man.
- ^ Place Names of the Isle of Man by John Kneen MA pp125 (1970) Yn Cheshaght Ghailckagh The Scolar Press