This was the crossing of the GTW Bay City Branch and the Pere Marquette Brewster St. Spur, known as the "Dead Line". This was a half-interlocker. [GT ETT-1928-0429]
This was 6/10's of a mile west of the Sheridan interlocking in Saginaw (east side).
The following sources are utilized in this website. [SOURCE-YEAR-MMDD-PG]: