Some experts believe mayor Wayne Brown's second Auckland harbour crossing won't fly.

Brown revealed a proposal to build a bridge stretching from Meola Reef to Kauri Point on the North Shore.

Auckland University senior lecturer of architecture and planning Bill McKay says there'd need to be a number of feeder motorways through Point Chev to get to the bridge.

"You know, the pushback from the locals and all that means it's all amounting to nothing."

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