About this Project

This multi-phase reconstruction project spans seven miles of US 322 (Conchester Highway) between US 1 (Baltimore Pike) and I-95, addressing aging infrastructure, safety concerns, and capacity limitations. The corridor was divided into three design sections—101, 102, and 103—each with distinct structural and roadway improvements.

Section 101, completed in 2020, reconstructed three miles of roadway between US 1 and Clayton Park Drive. Improvements included two new travel lanes in each direction separated by a curbed grass median, two bridges, five retaining walls, two box culverts, one sound barrier, and upgraded intersections. AEG provided geotechnical studies, pavement design testing, subsurface investigations, and foundation design reports. Environmental services included soil and geologic resource evaluations, erosion and sedimentation control planning, and hydrogeologic studies, as summarized in the Environmental Assessment (EA). AEG also performed surveying services to support the design and permitting process.

Sections 102 and 103 are currently in the final design and construction phase. Section 102 will reconstruct the segment from Clayton Park Drive to Chelsea Parkway/Bethel Avenue, adding travel lanes, a Bethel Township Commercial Road, and multiple intersection upgrades. Section 103, now under construction, covers the segment from Cherry Tree Road to Route 452 (Market Street), including reconfiguration of the Cherry Tree/Bethel Avenue intersection and the Route 452 interchange. AEG is responsible for geotechnical investigations, post-construction stormwater management studies, and foundation and roadway design analyses for both sections. Services include boring, sampling, and testing for bridges, retaining walls, sound barriers, and culverts, as well as environmental and alternative analysis support across the corridor.