TRANSPORTATION

ISTHA Elgin O’Hare Western Access (EOWA), I-294 to I-90 (Devon Avenue to Touhy Avenue)

SQN provided engineering and construction inspection services for the EOWA project, supporting construction of new mainline lanes between Devon Avenue and Touhy Avenue. The $3.4 billion project improved access to O’Hare International Airport, enhanced regional mobility, and reduced congestion. SQN provided field inspection, documentation, pay estimate support, punch list preparation, and utility coordination.