I-270 Dorsett/Page Project

In July 2009, the Missouri Department of Transportation awarded Fred Weber, Inc. a $35 million contract for three construction projects located along I-270 at Dorsett Rd., Page Ave., and Marine Ave.

I-270 at Dorsett now has a Diverging Diamond Interchange (DDI). This type of interchange design is new to North America, with the first ever DDI being constructed by MoDOT in the summer of 2009 in Springfield, MO. The I-270/Dorsett DDI is the second of three built in the state of Missouri. Some of the advantages of a diverging diamond interchange include free turns for motorists, meaning vehicles don’t cross opposing traffic. Traffic models indicate this type of interchange works well with areas of heavy traffic, such as Dorsett Road. The new interchange at Dorsett also includes new asphalt pavement, signals, lighting and aesthetic enhancements.

Construction of this project began in April of 2010 and the interchange was converted to a DDI in October 2010. This project was completed in the summer of 2011.

The I-270/Page project also began in the spring of 2010, and was completed ahead of schedule and under budget. On July 22, 2011 the Missouri Department of Transportation held a ribbon cutting ceremony to officially commemorate the opening of the new I-270 and Page Avenue interchange. The $22 million MoDOT project consisted of constructing a new dual-lane directional ramp from northbound I-270 to westbound Page Avenue (Route 364) to improve safety and relieve congestion. Fred Weber, Inc. was awarded the project after submitting a value engineering redesign that used a circular pattern instead of a flyover ramp at the interchange. It also provided room for a future ramp (currently unfunded) from westbound Page Ave. to southbound I-270.

This redesign not only saved the state $3 million, but was also the largest value engineering proposal in the history of the Missouri Department of Transportation. Ceremony participants included representatives from St. Louis County, the City of Maryland Heights, the City of Creve Coeur, Fred Weber, Inc., MoDOT and the Missouri Highways and Transportation Commission.

The bridge rehabilitation at the Marine overpass at I-270 was completed in the fall of 2011.

More information regarding this project can be found at www.270dorsettpage.com