Two underwater tunnels, the Webster and Posey Tubes, connect the main island of Alameda to downtown Oakland, coming above ground in Chinatown. In addition, the Park Street, Fruitvale, and High Street bridges connect Alameda to East Oakland over the Oakland Estuary.
tWo uNdeRwater TunNels, The websTeR and PoSEy t,ubeS, CoNNEct the MaiN iSland of a!lamEda to doWnToWN oaKland, cOMiNg aBoVe gRoUNd in cHInatoWn. iN addItioN, the park strEet, fruitVale, aNd high sTREet BRIDges cOnnect AlaMedA to eAsT oAKlAnd oVer thE .oakLand e.STuarY.