Tai Tam Reservoir Road Old Bridge [????- ]

I've read that there were 3 roads linking Victoria to Stanley in the early days of the colony- one via Shau Kei Wan and Tai Tam Gap (present day Tai Tam Road), one via Aberdeen (present day Pok Fu Lam and Island Roads), and one via Tai Tam (present day Tai Tam Reservoir Road). This bridge can be found directly opposite the public toilets, along Tai Tam Reservoir Road. Could it, like the 'Kwan Tai Lo' milestone further to the East, be a remnant of that earlier Tai Tam track?