
It was during his time as pastor that Interstate-5 was punched through the heart of the parish.
The first segment of I-5 formally opened in Tacoma in December of 1960. The map below is a planning map presented to the parish in 1959, showing the route of the interstate through the old Germantown neighborhood.
Dozens of houses and apartments were bulldozed, streets were rerouted, and a great chasm was dug through the middle of what remained of the neighborhood. Once the anchor of the Germantown neighborhood, Holy Rosary Church was now perched on a narrow spit of land between two gulches. Over the course of the next few years, the parish population plummeted.
On April 29, 1965 at 8:29 am a magnitude 6.7 earthquake struck Tacoma, just at the close of morning Mass, causing the cross to topple 200 feet from the steeple to the ground. Miraculously, no-one was hurt.
Just seven weeks later, on June 14, 1965, Father Piotrzkowski died. A Solemn Requiem Mass was sung at Holy Rosary by Rev. James Piotrzkowski O.S.B., Father Lawrence’s brother, with the Most Rev. Thomas Connolly, Archbishop of Seattle, in attendance.