Golden Gate Bridge Moveable Median Barrier
The Golden Gate Bridge Moveable Median Barrier (MMB), also affectionately known as the "median zipper." The Golden Gate Bridge was closed to automobile traffic while the MMB was being tested.
The Golden Gate Bridge Moveable Median Barrier (MMB), also affectionately known as the "median zipper." The Golden Gate Bridge was closed to automobile traffic while the MMB was being tested.