The opening of the second Tacoma Narrows Bridge eliminated the
potential for head-on crashes that could occur when both directions
of travel were one bridge. The skinny lanes were separated by some
little plastic doohickeys.
Now the state is installing crossover barriers at each end of the
bridges to keep head-ons from happening there. The project, which
costs $199,000, will begin in May and take about two weeks. It will
be paid for with tolls.
The barriers can also be moved to divert traffic from one bridge to
another in the event of a major blocking collision or bridge
closure.