Photo taken by Tom Saunders, VDOT
License: Creative Commons Attribution-NonCommercial-NoDerivs (CC BY-NC-ND)
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BH Photo #255699
The tunnel has large metal doors that protect during hurricane. I've seen it open during some hurricanes. The tunnel has massive pumps to pump out water and the doors can close pretty quickly. During hurricane Isabelle one of the tunnels in the area failed to close its doors and the tunnel was flooded for several days.
This tunnel connects the independent cities of Newport News and Suffolk. The site doesn't let you indicate both
It looks to me that the tunnel portals are above sea level on man-made islands. Of course, if a hurricane came through, I might be concerned about storm surge entering the tunnel. It is hard to tell from the pictures just how high the islands are. That being said, I imagine the causeway would be closed anyway in advance of an approaching hurricane.
How do they keep the water out of the tunnel?