Location Baltimore, MD
Duration May 2014 – June 2015
Wagman Geotechnical Construction services group completed a $9.1 M foundation project, including pipe piles and sheet piles, for a new 350’ tall building and parking garage that will be the location of Exelon’s Constellation Headquarters. This project is the first of several buildings that are being built on what will be called Harbor Point.
The building site was the previous location of the Allied Signal’s Baltimore Works facility. In 1985 when Allied ceased operations, it was discovered that the site had chromium contaminated soil and ground water leaching into the Inner Harbor. A slurry wall barrier and liners were installed to contain the contaminated soil and ground water. The clean up was orchestrated and completed in 1999. Wagman modified the construction plans to work safely around the contaminated zones, ensuring they remained contained. Over 60,000 LF of 16” and 18” steel pipe pile and 1,500 LF of steel sheet pile was driven on the project by Wagman.
Key Challenges & Project Details
- Prior to Wagman’s piling operations, all work areas had to be excavated and resealed by an approved hazardous material mitigation subcontractor.
- The majority of the sheet piles were installed in the slurry barrier wall with a special sealant in the interlocks of the sheet piles.
- Dust mitigation was performed during construction activities to reduce the risk of air borne chromium. Air monitors were installed on and around the site to monitor chromium levels during construction.