Whittemore Ave neighborhood area and North Parking Lots:
- Building 1: Ongoing activities related to interior construction.
- Building 2: Continued construction activity related to both interior and exterior.
- Building 3: Continued construction activity related to both interior and exterior.
- North Parking Lot D will have a large tent with soil disturbing activities.
- East Parking Lot will have a large tent with soil disturbing activities. This tent will have sequential moves within this area.
- Large white tents #1 and #2 will be active with soil disturbing activities with sequential moves east to complete the footprint of Building 5. These tents should be completed by early February.
- Large white tent #3 will be active with soil disturbing activities with sequential moves within the east parking lot.
- Large white tent #4 will be active with soil disturbing activities with sequential moves within the footprint of the garage.
- Large white tent #7 will be active with soil disturbing activities with sequential moves west along the south side of Building 2.
- Large white tent at main entrance Gate A will be active with soil disturbing activities. A temporary construction site entrance will be established on Whittemore Ave at the east parking lot.
Open excavation in clean soils will be conducted in the footprint of Building 4 related to concrete foundations and utilities and on the south side of Building 2 related to utilities.
Pile driving activities are currently planned to begin in mid-February in the footprint of Building 5 and the Garage.
A pile foundation is defined as a series of steel beams inserted into the ground to transmit loads to a lower level of subsoil. A vibratory hammer is a machine attached to a boom crane, which holds the pile vertical and vibrates it into the ground. Piles are vibrated and pushed into the ground to function as a steady support for structures built on top of them. Piles transfer the loads from structures to hard strata, rocks, or soil with high bearing capacity.
Piles are initially driven using a vibratory hammer. This method typically has less noise and a small vibration footprint. Once piles are driven to the required depth at bedrock, the piles are then finished by mean of impact hammer. A pile impact hammer is a machine that hammers it into the bedrock. Blows are repeated by lifting a heavy weight and dropping it on top of the pile. Piles should be hammered into the ground until the refusal point is reached, which is the point where a pile cannot be driven into the soil any farther. Typically, each pile would receive somewhere between 10 & 20 plows before reaching its refusal point.
The temporary Eversource electrical substation near Harvey Street is currently active and providing temporary construction power throughout the site. Temporary overhead electrical lines and poles are all installed throughout the site for the distribution of electricity.
Construction heaters are being used in Buildings 2 and 3 and are running 24/7 to heat temperature sensitive construction activities. These heaters are kerosene fueled and have been granted a noise ordinance variance.
Some generators continue to run during regular working hours to support a variety of construction activities. No generators are being run off hours.
Maintenance and trash pickup along the public pathways on the west side of the property running from Whittemore Ave down along Parkway Pond to the MBTA Headhouse Plaza is ongoing. Activation of the emergency call box phones on the most southern section is still work in progress.
January Construction Plan:
February Construction Plan: