Date tracks were laid in Carlin, Nevada?

From: "Ella Trujillo" etrujillo@cityofcarlin.com

I am trying to find out precisely when the Central Pacific Railroad laid the tracks in Carlin, Nevada. I know frequent telegraph reports of tracks laid were being sent back each day but I can't find this information anywhere. Do you know how I can find out when the tracks were laid in Carlin? ...

—Ella Trujillo, Carlin Historical Society