Boyle Construction

Boyle Construction

Project Profile

Hoover Mason Trestle Pedestrian Walkway

Bethlehem, Pennsylvania

Bethlehem Redevelopment Authority
Contact Name
Mr. Tony Hanna, Executive Director
Wallace, Roberts & Todd/WRT
Maser Consulting P.A.
Simpson Gumpertz & Heger, Inc.
Lehigh Valley Engineering, Inc.
Advantage Engineers
Agency Construction Management
Public procurement, multi prime, 6 - Prime contractors
CM Services Start Date
October 2013
Construction Start Date
October 2014
Project Completion Date
June 2015

Project Description

The Bethlehem Redevelopment Authority revitalized the historically significant Hoover-Mason Trestle (HMT) as part the former Bethlehem Steel 160-acre site redevelopment. Its adaptive reuse goal was to use the existing trestle structure – a former steel interior ore rail line – to create connectivity via a pedestrian promenade.

As a unique, one-of-a-kind structure, constructing the HMT proved a challenge. The fourth longest of six known elevated walkways worldwide, there were few engineering and design examples to help estimate costs. Conceptual designs and programming adjustments were necessary to accommodate the budget. Boyle facilitated matching the project goals to the budget. Yet, even with this effort, original design base bids were high. Boyle collaborated with the project team on extensive value engineering to eliminate $3.7 million in costs and another $1.7 million during construction to meet the Authority’s budget.

With many SteelStacks campus outdoor events planned during summer, Boyle strategically worked through the winter to construct the HMT. Construction started in October 2014 and was completed on schedule for the summer season in June 2015.

The HMT, which once carried cars filled with ore to the blast furnaces, is now part museum, part circulation walk and part attraction, tying together an arts and entertainment complex.