Location
Stamford, CT
Project Details
Installed 392 linear feet of 42-inch steel casing to accommodate the relocation of high-voltage electric duct banks. The installation included four crossings beneath the Long Island Railroad, executed in hard rock conditions using a Robbins SBU. To mitigate the risk of ground movement and protect existing infrastructure, the crown of each bore was soil stabilized to minimize potential settlement. Following casing installation, a multi-conduit duct bank was precisely placed within the 42-inch sleeves and grouted in place to ensure structural integrity and long-term durability.
Final Product
Electric Cable System- Installed 4- 42″ Crossings via Auger Bore / Hand Tunnel
Geology
Granite rock/boulders overlayed by sand and gravels
Completion Date
December 2016
Installation Methods
- Auger Boring
- Pipe Jacking and Tunneling
- Soil Stabilization
- Grouting
