• Corporate HQ, NY
  • Melville, NY
  • Iselin, NJ
  • Ossining, NY
  • Mount Laurel, NJ

Madison Avenue Trunk Water Main Lining


HAKS inspected the rehabilitation of approximately 11,000 feet of existing 36- and 48-inch water mains on Madison Avenue for the New York City Department of Design and Construction. Project limits extended along Madison Avenue from East 37th to East 78th Streets, a heavily traveled business, commercial and residential section of Manhattan.

Rehabilitation consisted of a new lining for each of the mains using trenchless technology. The $14 million construction also involved the installation of 1,000 feet of new 36- and 48-inch steel water mains, various sized distribution water mains, new curb and sidewalk, and paving of 11,500 feet of roadway.

HAKS' resident engineering inspection team ensured that the existing mains would not be compromised by the lining process. Safety was a primary concern because of the constant flow of pedestrians, buses, and commercial and private vehicles. We made sure that the contractor decked and plated over all excavated areas and that temporary asphalt was placed immediately after trenches were backfilled and until the street was permanently paved. We monitored the contractor’s maintenance and protection of traffic to ensure that traffic control devices and work site delineators were in place, materials and equipment were properly stored, flag persons were in the proper locations and street crossings were safe for pedestrians.

The project received the 2011 ACEC New York Platinum Award; 2011 American Society of Civil Engineers, Met Section Construction Project of the Year Award; and the 2011 American Society of Highway Engineers Unique Project of the Year Award.