According to the poll, 75 percent of drivers said they'd seek alternate routes once the state implements tolls on the bridge. Of those, 71 percent said they'd switch to I-90 and 19 percent said they'd drive around the north end of Lake Washington. That's 53.25 percent of all drivers who currently use the 520 bridge.
Additionally, 54 percent of those polled said they'd avoid 520 altogether, and 25 percent said they'd reduce their use of the bridge.
The prospect of tolling I-90 at the same time as 520 has been controversial. Tolling both bridges would help the state pay off a new 520 bridge faster, but the state currently has no plans to toll I-90 before 2016. Tim Eyman has filed an initiative this year that would require toll revenues from I-90 to be used for capital improvements to I-90 bridge itself.
In positive news for transit advocates, 18 percent said they’d be more likely to use transit, and 17 percent said they’d be more likely to carpool.