Core Mat Foundation Excavation, Shoring and Tiebacks. Installation of sheet piling, tiebacks, excavation and pressure grouted slab tiedowns for Venice Island Pump Station, for the Philadelphia Water Department. US Air Maintenance Hangar Philadelphia International Airport. Performing Sitework, Utility and Paving Construction. Helping Shape Philadelphia Since 1906. Comcast Innovation and Technology Center. Methodist Hospital Flood Control Project.

This web site is being maintained by John R. Barnes, who was the President and Chief Engineer of dBi Corporation from 2002 to September 30, 2013, when we closed because ObamaCrap made it too expensive for us to remain in business. Barnes KS4GL, PE, NCE, NCT, ESDC Eng, ESDC Tech, PSE, Master EMC Design Engineer, SM IEEE. May be marketed and used worldwide.

We feature the best quality of Pop Up Displays at a value price - with lifetime warranties and by 25 years of experience in Pop Up Exhibit design for world class photomurals,.

Customized modular home design, installation and construction throughout Connecticut. Our environmentally friendly, high quality modular homes are affordable, quick to construct and come in a wide variety of designs and styles. Family-owned and Operated Since 1995. Highest Quality Work with Outstanding References.