A state highway to be known as state route number 525 is established as follows:

Beginning at a junction with state route number 5 in the vicinity south of Everett, thence northwesterly to the state ferry terminal at Mukilteo; also

From the junction with state route number 526 at Mukilteo, thence southerly to a junction with state route number 525; also

From the state ferry terminal at Mukilteo via the state ferry system northerly to the state ferry terminal at Clinton; also

From the state ferry terminal at Clinton, thence northwesterly to a junction with state route number 20 in the vicinity east of Keystone.