Do concrete bridges have welds? I don't know anything about bridges. Just trying to narrow it down because I'm pretty sure there's only 7 steel bridges total (Glenmore, WB flyover at 88 St, SB-EB at 88 St, #1 WB-SB at DF 22X, and #1 and #2 NB-EB at DF 22X)... the rest of the bridges have concrete girders. Of those 7 bridges, traffic is already flowing on 6 of them.
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