News

In the spring of 2018 Hennigan Engineering was sought out by an ENR top 50 engineering firm to become part of a specialized and uniquely qualified team of professionals to perform complex video inspection services and customized high pressure biomass/scale removal services in a large scale and multi-phased project for the New York Department of Environmental Protection’s 70 mile Aqueduct system.

This water supply system is one of the most extensive public water supply systems in the world that moves more than one billion gallons of clean water per day into the city and surrounding boroughs.  It is comprised of aqueducts, tunnels, reservoirs and pumps.  It provides water for the city’s more than eight million residents and its many visitors.  95% of the total water supply is supplied by gravity.

The other 5 % needs to be pumped to maintain pressure.  The original system was completed in 1928. The system’s Operation & Maintenance is the responsibility of the New York City Department of Environmental Protection.

We recently designed and deployed specialized pipeline video inspection equipment capable of recording pan/zoom/tilt data in color; from large diameter pipes with over 700-ft vertical sections that reach hundreds of feet below the elevation of the bottom of the Hudson River from Roosevelt Island.

In addition, we designed and successfully demonstrated a that fully cleaned the cementitious sidewalls of the aqueduct from difficult biomass and scale.  This involved custom-designed pressure cleaning heads that balanced pressure, approach angle, speed and volume to maximize cleaning production without causing damage to the aqueduct walls.  We will continue to support this project over the next several years.

Working on the aqueduct system in this capacity requires specialized equipment and personnel with specific expertise and experience that only Hennigan Engineering provides.

Congratulations to Hennigan Engineering’s very own Kevin Mitchell for being given a Safety Recognition Award from CH2M Hill as supervisor on a recent USACE-COBRATF Project 2018.

The award presented by CH2M Hill’s site safety managers reads:

“CH2M Hill recognizes and thanks you for your valuable contribution.  You have represented and displayed a strong health and safety culture as one individual working to make this project a safety initiative and performance, you are hereby bestowed:

This safety award on this 19th day of January in the year 2018”

Hennigan Engineering is very proud of our excellent safety record.

Hennigan Engineering Co., Inc.’s corporate offices in Massachusetts welcomes back Nick Attardo, Engineer, after spending a productive year working exclusively at one of our clients, nuclear power plant facility as a corrosion engineer.  Nick contributed a lot during his time in Louisiana, but is happy to be back in Massachusetts where his family lives.