Tunnel Boring Machine (TBM)

Miss Chelsea
SAK Construction’s TBM, Miss Chelsea is on the move, headed NNE, grinding through 1700+ feet of bedrock, going where no one has gone before.
Interesting boring job.


operator conveyance
Drive to work, ride the man-basket down into the hole, fire up the TBM. How is the machine moved forward? What protective gear does the operator wear? At the moment it’s a horizontal short walk (100+ feet) from the tunnel entrance to Ms. Chelsea. Later on it’ll be longer. Bike to work? What is the lighting like in there? Any chance of a live video feed?

A million cubic feet

CAT 740B
Work was paused temporarily Monday at RWSA’s excavation for members of the public to visit the site, the location of the future Rivanna pumping station.


nobody looks good in a hardhat
First up. Schooling from Dr. Richard Gullick on this great project, using gravity to transport waste water to the sewage plant instead of building a massive pump station adjacent to residences, a state scenic river and a park. The influent to the new pumping station will flow through a pipe in a tunnel bored through 1600 feet of bedrock.


big hole
Attendees at the edge of the excavation.


release the Kraken!
The tunnel boring machine, the mechanical star in our community drama of doing the best, not the cheapest, thing. Enduring thanks to the public and the RWSA Board for this outcome.

words are wind

Market Street plan
Meetings I remember. Huge category. This the meeting that laid out improvements to Market Street east of Meade Avenue. Plantings, stormwater BMPs, profile changes. I’d been canvassing residents of the street the day before (9/7/2008), encouraging their attendance at the meeting. Charles said he wasn’t coming, a waste of time: “the City will never do this for us, it’s all about the money, the river will rise up and wash us away.” I tried to persuade him, encouraging him to be more sanguine.
Hey Charles! You were right. The improvements weren’t forthcoming.

railroaded

Marchant Street closed
For 150 years, people have walked from the President’s house to Woolen Mills Road (E Market) via Marchant Street. Earlier this month the street was cut off, severing the connection between the northern and southern portions of the Woolen Mills Neighborhood, without process, without advance notice. Hey Woolen Mills Neighborhood!
It sucks to be you.
30 x1028 px box