Our team provided design and construction phase services — including value engineering proposal development — for construction of Longmeadow Parkway and reconstruction of Illinois Route 62 in Carpentersville and Barrington Hills, Illinois. This initiative is one of several phases of the major multiyear Longmeadow Parkway project.
The new four-lane arterial roadway provides an additional Fox River crossing in northern Kane County and will help alleviate traffic congestion in downtown Carpentersville and Algonquin. The project creates a new alignment connecting Randall Road on the west end with Route 62 on the east end via a new bridge over the Fox River.
Our scope included Portland cement concrete (PCC) pavement, retaining wall design, storm sewer design, landscaping, erosion control, traffic signal design, signing, pavement marking and retaining wall aesthetic improvements, including formliner treatments to the soldier pile wall. We worked with a landscape architect to incorporate native trees and plantings, a natural-looking detention basin, and a winding and scenic bicycle path.
Our staff aided in the development of value engineering proposals, including recommending components that saved millions of dollars on the cost of the bridge and advising the replacement of an at-grade intersection with a grade separation that is expected to improve safety and operations at little incremental cost because structure costs were nearly offset by reduced earthwork.
Project challenges included steep slopes and maintaining an existing 18-inch bypass sewer for the Village of Carpentersville along the proposed 48-inch storage pipes within a tight right-of-way (ROW).