Drivers who use the State Route 520 Bridge will see toll rates increase beginning Saturday, July 1.

Toll payers will see a 5 percent increase in weekday and weekend toll rates, and nighttime tolling will begin at a flat rate of $1.25 per crossing. Toll revenue is required and on track to generate $1.2 billion to cover a portion of the new bridge’s cost.

These increases were approved by the Washington State Transportation Commission in May 2016, following a public comment period and after public meetings were conducted.

The across-the-board 5 percent increase equates to 20 cents for peak period tolls (increasing from $4.10 to $4.30 for Good To Go! pass holders).

Overnight travel between 11 p.m. and 5 a.m., formerly toll-free, will now cost $1.25 per crossing for those with a Good To Go! pass. The additional $2 per crossing Pay By Mail charge for drivers who do not have a Good To Go! pass has not changed.

The commission, in cooperation with Washington State Department of Transportation leadership, has prioritized keeping toll rates on the SR 520 Bridge as low as possible for all toll payers while still raising the revenue required to help pay for the new bridge.