Oregon lawmakers got one step closer to passing a massive transportation package that could bring rush-hour tolls to interstates 5 and 205, among other new taxes and fees to improve the state’s declining infrastructure.

The Oregon Senate on Thursday approved the $5.3 billion transportation bill approved by the Oregon House the day before and sent it to Gov. Kate Brown to be signed into law.

The bill would create a transportation commission that would seek approval from the Federal Highway Administration by Dec. 31, 2018, to put tolls on I-205 and I-5 beginning at the state line and ending where the two connect near Tualatin, Ore.

The bill directs the commission to “implement value pricing to reduce traffic congestion. Value pricing may include, but is not limited to, variable time-of-day pricing.”

The commission would also work with Washington officials to establish and operate tolls at the state line. What the tolls would cost or what the system would look like isn’t yet clear.