CLIENT

IL State Toll Highway Auth.

PROJECT START DATE

October 2005

PROJECT COMPLETION DATE

August 2007

ILLINOIS

Singh & Associates, Inc. (SINGH) provided Construction Engineering services to the Toll Authority as a subconsultant. SINGH provided inspection services for the Open Road Toll Plaza conversion of three mainline toll plazas on the Northwest Tollway at Plaza 1 (Beloit), Plaza 5 (Belvedere), and Plaza 7 (Marengo), in Winnebago, Boone, and McHenry Counties.

The Tollway intended to relieve congestion and offer motorists a speedier alternative to traditional toll collecting facilities. The conversion from traditional toll plazas to a barrier-free system, the first in the nation, will allow I-PASS users to travel at highway speeds on the mainline while tolls are collected electronically by an overhead gantry, helping to reduce congestion and travel times. Vehicles without I-PASS use manual lanes off the mainline to pay cash to toll collectors in booths, which doesn’t impact the free-flow of traffic on the mainline. Separating I-PASS traffic from vehicles paying cash allows for safe transit through the toll plazas.

The conversion required reconstruction or rehabilitation of existing toll collection facilities and design tasks to upgrade existing toll plazas, and new designs for the ORT lanes. SINGH as part of the team on this project provided Construction Engineering services on the civil, electrical, and mechanical aspects of the project.