De Burghs Bridge, Road bridge across Lane Cove River in Sydney, Australia

De Burghs Bridge is a road bridge spanning the Lane Cove River and connecting Macquarie Park to West Pymble through two parallel concrete structures. The crossing carries traffic on the A3 road with three lanes in each direction and includes pedestrian walkways on both sides.

The original bridge opened in 1901, designed by Ernest de Burgh with a 50-meter timber truss that was remarkably long for that era. A bushfire in January 1994 destroyed the wooden structure, though some original support piers remain visible beneath the current concrete span.

The name honours Ernest de Burgh, the engineer who designed the first timber truss bridge here in 1899. A plaque on the current span, installed in 1988 while the old bridge still stood, commemorates that earlier crossing. Walkers can look down from the walkway to the surviving northern abutment and pier remnants in the bush below.

The bridge is best crossed on foot or by vehicle, with pedestrian walkways providing a safe option for those walking. Traffic can be heavy during peak hours, so it works better to cross at quieter times if you have flexibility.

The first bridge stood a few metres downstream at its southern end and about 20 metres away at its northern end. Its northern abutment and parts of the supporting piers still lie on the ground, and the current crossing gives a vantage point over these remains. A plaque on the bridge, placed in 1988, honours the old structure.