Watertown, NY RT 3 Over Black River: Phase 1 Complete

May 21, 2012 in Announcements, Hydrodemolition, Surface Cleaning
Rampart recently completed Phase 1 of a project in Watertown, NY. The project involved removing 2″ of concrete from the deck of the Rte. 3 Bridge over the Black River. The project also included Vacuum cleanup using the TracVac. This was the Westbound lanes. Phase2 will be the other side.

Rear view of TX and Vac side by side.

Rear view of Hydro Trailer and Vac side by side.

As you can see we were a little short on space on this project. You could not even walk between the Vac Truck and the Hydro-demolition trailer.



Frony view of BC in operation.

A front view of the Hydro-Demolition robot with Roberto operating.

Here is the Hydro-Demolition Robot hard at work. This is a front view. With 3 X-Pumps churning out 48 GPM @ 36000 psi there is nothing to see but steam from the rear view.



Roberto doing some X-Pump maintenance.

Roberto doing some X-Pump maintenance.

Here Roberto is doing some maintenance on the High Pressure End of an X-Pump. As you can tell it was really bright on this Friday afternoon after raining all week long.



TracVac being operated by Justin.

Justin stays hydrated as he operates the TracVac.

Here Justin has just returned to the operator position of the TracVac and ,after a quick drink for hydration, is ready to resume. Notice the netting that has been installed in the background. This helps prevent debris from reaching the live traffic on the other side.



The Bobcat reaches the finish line.

The finish line.

This is not actually the end of the project but the Hydro-Demolition Robot has gone as far forward as it can. Time to move everything forward and start the next section.



Vac Truck discharge.

Vac Truck discharge hose.

In addition to the Vacuum the TracVac is also provided with high pressure water to help with the cleaning operation via the Vac Truck’s on board 10k pump. Nearly 100% of the cleaning water is picked up by the powerful vacuum. When the debris body of the Vac Truck fills with water it needs to be discharged so that the cleaning operation can continue. In this case it is discharged out to the uncut portion of the bridge where it flows downhill to a drain that has been plumbed over to a series of settling tanks.



The tanks used for settling of the solids and PH control.

The tanks used for settling of the solids and PH control.

Here are the tanks used to allow the solids to settle out of the Hydro-Demolition water. Once the solids have been removed the water is treated with C02 to adjust the PH level before it is safely discharged to the ground.



View of the rear of the Vac Truck after dumping solids.

The pit where the Vac Truck has dumped it's debris.

Here we see the rear of the Vac Truck still in it’s fully raised dumping position. The solids are typically emptied once or twice per shift. Even after pumping out as much water as possible before dumping a small amount remains trapped in the debris body. For this reason the pit is lined with a filter fabric to capture the solids from the water. At the end of the project the debris will be scooped out of the pit and hauled away for disposal in a designated area.



The finished product.

A closeup of the finished product.

Here is a closeup look at the finished product. The bridge deck has been cut, and all debris removed. The end result is a clean surface with rebar exposed but undamaged. Ready for the new surface to be poured.



Dam visible from the bridge.

Dam visible from the bridge.

Finally, here is the dam on the Black River that is visible from the bridge.