US 240/ I-70S/ I-270: Frederick to Washington, D.C. &
Washington Circumferential Highway (I-495):
American Legion Bridge to MD 185

The first contract undertaken by the Company was the surveying and design of 16 miles of US 240 (currently I-270) from Frederick to Brink, followed shortly by the surveying and design of the remaining 18 miles of US 240 from Brink to Chevy Chase. Over the years, the name of the route has been changed from US 240 to I-70S, to I-270. The latter contract also included an eight mile section of what is now the Capital Beltway from the American Legion Bridge to MD 185.

During the 1980s, we conducted a project planning study for the widening of 16 miles of I-270, from the Y-Split to MD 121, which resulted in an 8-lane mainline (with HOV lanes) flanked by 2-lane Collector-Distributor roadways. This project won the National Quality Initiative Achievement Award in Maryland in 1995. We also performed project planning studies for both I-270 and the I-270 West Spur from the Y-Split to I-495, and for improvement of the interchanges at Democracy Boulevard and MD 187.

While US 240 (south of MD 121) carried fewer than 8,000 vehicles per day in 1960, by 1997 it was carrying 75,000 vehicles per day, and the area along the roadway has become the I-270 Technology Center, one of the premier areas of high-technology in the country, and a key component of the economic well-being of Maryland.