Week 27, Part 2- Piping and Operations tent

All along while Contractors Northwest keeps the above-ground work going, Owens is doing the dirty work! Installation of vaults, manholes and process piping occurs as time and space becomes available.

Here Owens is working on "Line C" which carries partially treated water from the Phosphorous Removal building to the UV Disinfection room in the Mechanical building. It travels through a bypass vault between processes. Every line in the plant has a bypass option in case equipment goes down or needs servicing-



In this shot the Owens crew is behind the Treatment building working on "Line G" which circulates waste water from the site back into the system through Lift Station 1. Not much fun working in ground water on a 25 degree day!



So back to the Operations building progress. Remember that nice, clear day we started on?



The following day the temperature dropped below freezing and stayed there for a while. This made a heated tent necessary. Here's the view I saw driving in to work the first morning with a tent. The Treatment building is the structure in front of the tent-



With the sun low in the south you can see the work in progress from the north side-



On the inside it was a cozy 55-60 degrees with two propane burners on the floor-



As the first 4-foot lift of blocks was finished, insulation was placed in alternating cells-



Rebar went inbetween the insulation cells and the rebar cells were filled with grout during the Bond Beam pour. The "Bond Beam" is a complete horizontal grout pour, done every 4 feet. This was the first one and we'll see more of the progress in next week's update-