← Return to MamaJo Updates

Close to 4-Mile Mark

MamaJo should be hitting the 4-mile mark later this month. Below left shows workers at drop shaft 5 (Thieme Drive) where progress continues on the diversion structure. 

The left photo shows crews back filling the area at drop shaft 2 (Waldron Circle).

removing filler strip
structural backfill

Worker below is securing the gantry legs to the concrete liner inside the tunnel.  March 10, 2021.

securing gantry legs