Complex Video Inspection – New York Aqueduct System

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 custom cleaning system 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.

High Pressure Cleaning of Aqueduct

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

Upcoming Shows 2018

Hennigan Engineering is pleased to announce we will be exhibiting at the following upcoming shows:


24th Annual Nuclear Generator & Supplier Executive Summit – Seattle, WA                       July 18 – 20, 2018   hosted by Utilities Service Alliance


24th annual Nuclear Generator and Supplier Executive Summit – Seattle, WA. – July 18-20, 2018


The 2018 Condenser Life Cycle Seminar  – September 10-12, 2018 – at the Royal Sonesta, New Orleans, LA

2018 Condenser Life Cycle Seminar



Safety Recognition Award presented to Hennigan Engineering’ Kevin Mitchell

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:


Safety Recognition Award

“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’s Massachusetts Office welcomes back Nick Attardo


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.

Corrosion Engineer

Nick Attardo



Hennigan Engineering Welcomes Ken Marko

Hennigan Engineering is pleased to welcome Ken Marko to the Hennigan family as Vice President of Business Development.  Ken is pictured below with Randy Benefield, President.

Randy Benefield and Ken Marko

Ken brings over 18 years of experience as a condenser and heat exchanger tube cleaning professional, experience gained while working as a top projectile tube cleaning manufacturer’s representative.  Ken has a vast knowledge of what is the best tool for the job to reduce the initial upfront cleaning cost while maximizing the cleaning results for best tube cleaning results.

Hennigan Engineering looks forward to introducing Ken to our customers in person.


2018 Heat Exchanger Performance User Group Meeting

Hennigan Engineering will be attending and exhibiting at the 2018 Heat Exchanger Performance User Group Meeting  Feb 5, 2018 – Feb 8, 2018 at:

  • Sheraton Lake Buena Vista
  • 12205 S. Apopka Vineland Road
  • Orlando, Florida 32836

The Annual Heat Exchanger Performance User Group (HXPUG) Meeting will be held in Orlando, Florida, February 5-8, 2018. The meeting is for nuclear industry personnel involved with performance and maintenance of heat exchangers.  Trainings, open door sessions and a Vendor Fair -is held in conjunction with the annual meeting.

We’d love for you to stop by and say hello.


Hennigan Engineering Will be at the Feedwater System Reliability Users Group Conference

Feedwater System Reliability Users Group (FSRUG) Conference

Hennigan Engineering will be exhibiting at the 2018 Feedwater System Reliability Users Group (FSRUG) meeting held in Austin, Texas at the Hilton Austin, January 22-25, 2018.

Feedwater System  Reliability User’s Group Mission:

  • Reduce  the number of Feedwater System related plant trips and unplanned power reductions in the nuclear industry.
  • Identify and implement solutions to common industry equipment reliability problems in feedwater and support systems.
  • Provide the industry a forum for improving Feedwater System
    reliability and to share operating experience through online collaboration and annual meetings.
  • To share information related to Feedwater System component maintenance and improvements to improve system performance and reduce maintenance costs.


Stop by our booth and say hello.

Highlight Project – Solar Energy Generating Systems

Hennigan Engineering was recently awarded a contract to perform services for NextEra Energy at their “Solar Energy Generating Systems” (SEGS) Solar Energy SEGS located in the Mojave Desert of California.  The SEGS facility is the second largest solar thermal energy generating system in the world.

The facility is comprised of nine solar power plants that have 354 MW net (394 MW gross) capacity. This is enough power to service 232,500 homes during the day at peak power.

Solar Energy

Solar Energy SEGS

This displaces approximately 3,800 tons of pollution per year that would have been produced if the electricity had bееn provided by fossil fuels.

The facilities have a total of 936,384 mirrors and cover more than 1,600 acres (647.5 ha). Lined up, the parabolic mirrors would extend over 229 miles (369 km). The installation uses parabolic trough, solar thermal technology along with natural gas to generate electricity.  

About 90% of the electricity is produced by the sunlight.  Natural gas is only used when the solar power is insufficient to meet the demand from Southern California Edison, the distributor of power in southern California.

Heat exchange/transfer efficiency is critical. The sunlight reflects off the mirrors and is directed to a central tube filled with synthetic oil, which heats to over 400 °C (750 °F). The reflected light focused at the central tube is as much as 80 times more intense than the ordinary sunlight. The synthetic oil transfers its heat to water, which boils and drives the Rankine cycle steam turbine, thereby generating electricity. Synthetic oil is used to carry the heat (instead of water) to keep the pressure within manageable parameters.

Hennigan Engineering will mobilize to the site in January 2018 to perform critical heat exchanger tube cleaning services in order to maximize system efficiency and power output.

Hennigan Engineering Helping to Bring Drinking Water to Puerto Rico

After this year’s devastating hurricane season,  Hennigan Engineering wanted to help those most in need.  Our friends in Puerto Rico were stuck with a critical lack of clean drinking water following the storm, and the damage to the infrastructure persists.  Hennigan Engineering partnered with (Servants in Faith and Technology) to deliver enough Sawyer Water Filtration Systems to produce 300 million gallons of drinking water within weeks of the crisis.

Hennigan Engineering has enjoyed a long-lasting relationship with the people of Puerto Rico via our business with PREPA (Puerto Rico Electric Power Authority) and our local business associates at Environics Group, San Juan, P.R.  We wish for the quickest return to normalcy for the good people of Puerto Rico.   If you would like to join us in supporting the efforts there, please log onto the link here to SIFAT and donate today.




Upcoming Trade Shows For Summer 2017

Come visit us at the following upcoming trade shows !

2017 Condenser Technology Conference

  • Loews Minneapolis Hotel
  • 601 1st Avenue
  • Minneapolis, Minnesota 55403
  • USA
  • July 26, 2017 – July 27, 2017

14th EPRI Balance-of-Plant Heat Exchanger Nondestructive Evaluation Symposium

  • Hyatt Regency Indian Wells
  • 44600 Indian Wells Ln
  • Indian Wells, California 92210
  • USA
  • July 31, 2017 – Aug. 2, 2017

2017 Duke Energy Fossil/Hydro Tech X Conference

  • Embassy Suites by Hilton Charlotte Concord Golf Resort & Spa
  • Concord, NC
  • USA
  • August 28 – 31, 2017