DC Water getting ready to create its groundfreezing trenches in the 1st St NW alleys, west of 1st St NW and north of RI Ave NW

DC Water is preparing its announced groundfreezing trench program in the north-south alleys along 1st Street NW, north of Rhode Island Avenue NW, eastside of 1st St NW.

Here is the link to the January 2014 Bloomingdale Neighborhood blog post on this DC Water ground freezing trench project.

Here is the link to the 01-07-2014 DC Water presentation.
                 
Read these Powerpoint slides from DC Water back in January:

and here is the map where the groundfreezing trenches will be installed -- see the vertical purple line west of 1st St NW, labeled as a "utility trench" on this map: