Endeavour Bridge, Road bridge in southern Sydney, Australia

Endeavour Bridge carries General Holmes Drive (A1) over the Cooks River from Mascot to Kyeemagh, just upstream of the river mouth at Botany Bay. Opened in 1951 as two separate two-lane bridges, it became a single six-lane structure in 1963 when the decks were widened into the gap between them. A grade-separated pedestrian footpath runs alongside the roadway, and Transport for NSW maintains the bridge.

The bridge was completed and officially opened in 1951 as part of infrastructure development supporting Kingsford-Smith Airport expansion. In 1963 it was modified and widened from two separate two-lane structures into a single six-lane crossing.

The name comes from HMS Endeavour, the ship commanded by Lieutenant James Cook, whose crew made the first recorded European expedition to navigate and map Australia's east coast, arriving in nearby Botany Bay in 1770. The bridge itself opened in 1951, so the name was chosen long after the voyage.

Endeavour Bridge carries the six-lane General Holmes Drive (A1) across the Cooks River beside its mouth at Botany Bay, linking Mascot and Kyeemagh. A grade-separated pedestrian footpath runs alongside the roadway, so walkers cross apart from the traffic. The bridge is maintained by Transport for NSW.

The two 1951 bridges were built on dry land before the Cooks River was diverted to run beneath them, a sequence forced by the expansion of Kingsford-Smith Airport. In 1963 their decks were extended into the gap between them, merging the pair into one six-lane structure.