Hatem Bridge Substructure Repairs

Bringing Peace of Mind to Those We Serve

BridgesHatem Bridge Substructure Repairs

Owner : Maryland Transportation Authority

Location : Havre De Grace, Maryland

This challenging $48 million project located on the Susquehanna River featured deep underwater rehabilitation and scour protection to the foundation and substructure of the Thomas J. Hatem Memorial Bridge (US 40) in Harford and Cecil counties. This preservation project consisted of underwater repairs to 10 concrete piers supporting the Hatem Bridge. The work zone will be in the Susquehanna River.

Work sequencing occurs as follows:

Excavation of the river bottom surrounding the piers to remove stone and debris.
Install steel cofferdams around the piers. Cofferdams were constructed using steel sheet piles as well as steel sheet pile combi-walls. The combi-wall designs utilized various diameter pipe piles ranging from 38” to 72” driven to bedrock with drilled shaft rock sockets to anchor them into the bedrock.
Remove material inside the cofferdam to expose existing bridge foundations.
Pour tremie seal inside the excavated cofferdam.
Pier repairs included removing and replacing deteriorated concrete, reinforcing steel, repairing cracks, strengthening columns and constructing a protective reinforced concrete encasement around the repaired foundations.
Removing the cofferdams and restoring the river bottom to its original condition.

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Paula Sidlowski

CHIEF FINANCIAL OFFICER

Paula has been Chief Financial Officer at Mclean since 2016, and has over 35 years of financial experience in project focused industries.

She is responsible for all financial and accounting functions, as well as human resources and information technology across all divisions of the Company.

She is a Certified Public Accountant, a Certified Global Management Accountant and holds a Masters in Business Administration.

Cory Heisey

CHIEF OPERATIONS OFFICER

Mr. Heisey has gained over 35 years of experience in the heavy/marine/bridge construction industry while working for McLean Contracting Company in various capacities. In his current position as Chief Operating Officer, Cory has P/L responsibility for the Company’s construction division, including company-wide planning and oversight of McLean’s construction operations, project selection and planning decisions during the pursuit stage, and oversite of the Company’s equipment department. Cory is a registered Professional Engineer and received a Bachelor of Science degree in civil engineering from Pennsylvania State University in 1986.