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55th Anniversary Celebrating 55 Years

Mackin Engineering Company began with one man’s dream and determination; and continues through the hard work and dedication of many. We carry on the standard of excellence that was set 55 years ago by our founder, Italo Mackin. The company vison and goals remain unchanged – to exceed our clients expectations and provide unsurpassed engineering and consulting services. More about Mackin



Three Rivers Heritage Trail Feasibility Study
The project corridor included an on-road and off-road solution, along the Ohio River, from Pittsburgh’s Station Square to the town of Coraopolis and the Montour Trail.
Three Rivers
Masontown Bridge Replacement
This $50 million project involves the replacement of the bridge carrying SR 21 over the Monongahela River and roadway realignment that connects Fayette and Greene Counties.
S.R. 0061, Section 15S
Mackin conducted traffic and accident studies, as well as environmental investigations for the 4-mile safety and betterment upgrade to PA Route 61 in northern Berks County.
Berks County
Washington / East Washington Multi-Municipal Comprehensive Plan
The City of Washington, Borough of East Washington and Washington and Jefferson College (W&J) partnered together to complete a multi-municipal comprehensive plan...
Washington Comprehensive Plan

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