Springfield (VA) Interchange Project – Phase V

Owner
Virginia Department of Transportation
Engineer
Virginia Department of Transportation
General Contractor
Shirley Construction
Jacking Sub Contractor
R. L. Ridgell Construction – Hollywood, MD
Pipe Size

890 feet of 30″ O. D. Permalok Steel Casing Pipe with .500″ walls
650 feet of 36″ O. D. Permalok Steel Casing Pipe with .500″ walls
110 feet of 42″ O. D. Permalok Steel Casing Pipe with .500″ walls
640 feet of 48″ O. D. Permalok Steel Casing Pipe with .500″ walls

The Problem

Relocating storm sewers and water mains through a busy interchange to improve the traffic flow through the Springfield Interchange. Highways I-95, 395, and 495 all intersect at this location; and traffic congestion in the area required time-efficient relocation of lines for minimal work zone hazards. As work on the Interchange progressed, it became necessary to relocate existing storm sewers and water mains in the congested area. This relocation was part of Phase V of the project.

The Solution

For Phase V, R. L. Ridgell Construction used the patented Permalok interlocking pipe joining system to relocate the storm sewers and water mains that was both efficient and cost-effective. Using the auger boring method to install 20′ lengths of Permalok Steel Casing totaling over 2,200 linear feet, R. L Ridgell completed the project on schedule, and at a cost significantly lower than other underground construction methods could have yielded.

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