Rehabilitation Division

Exceptional Quality

Construction Services

Through its years of experience in pipeline construction, Associated has developed a strong Special Services Division which offers exceptionally qualified personnel and all the necessary equipment to perform construction services for:

  • The replacement of pipelines
  • The electronic pigging of pipelines
  • The hydrostatic testing of pipelines
  • The double-jointing of pipe.

As the world’s network of gas and oil transmission lines ages and deteriorates, the need to revalidate these lines, and rehabilitate segments of these lines, becomes increasingly critical. Associated’s Special Services Division has the proven capability to inspect, test, and replace all sizes of pipeline.

Using the most advanced technology, Associated is fully qualified to provide inspection, testing and replacement services which meet the stringent requirements of the U.S. Department of Transportation’s Office of Pipeline Safety.

Using a fully automatic submerged arc welding process in tandem with three to five welding stations, Associated’s completely portable, self-supporting double-jointing unit can double-joint pipe ranging in size from 24 to 36 inches in diameter, with wall thicknesses up to one inch. Since 1968, Associated’s crews have double-jointed more than 290,000 lengths of pipe for a total of over 2,200 miles. Visual and radiographic inspection of each weld is performed to ensure that it meets the client’s specifications.

Recent Projects

Columbia Pipeline Group

Perry, Fairfield, Hocking, Vinton, Noble, Muskingum, Morgan, Perry Counties, OH

88 Miles


Cheniere CCPL

Nueces, San Patricio Counties, TX

21.6 Miles

36-Inch, 48-Inch

Texas Eastern Transmission LP

Columbiana, Carroll, Jefferson Counties OH

29.5 Miles


Columbia Pipeline Group

Gloucester County, NJ

9.6 Miles


National Fuel Gas Supply Corp.

Washington, Beaver Counties PA

23.5 Miles