7th and G Streets. This parcel is owned by the City of Sacramento. This rig helped set some test drilled piers (not visible in the picture). This will likely be the site of a mid- to high-rise project. The new Sacramento County Courthouse will be across the street to the west.
Driving steel tube piles at the piers for the Tower Bridge. I'm not sure if these are to reinforce the existing piers or to protect the piers from wayward boats. Based on the marks on the piles, these are going to be driven to a depth of at least 110 feet from top of pile.