 It may have been the longest ever built in the state, and the downstream bridge was probably the last wooden bridge to be built in Perth.Before European colonisation, the area around the Garratt Road Bridge site was inhabited by the Mooro people to the north of the Swan River, and the Beeloo people to the south.Beeloo territory included the Martagarup flats, immediately south-west of the bridge site, one of their fishing grounds.