The Red Hill complex consists of twenty 300,000 bbl underground storage tanks, three pipelines, and
a pumping facility that was built between 1940 and 1945. The pipelines are located inside of an
underground tunnel approximately 4.3 km (2.7 miles) long and 4.5 meters (15 feet) wide. This paper
will discuss the project management and technical challenges for the metal loss inspection of the 813
mm (32-inch) diesel pipeline at Red Hill, FISC Pearl Harbor, HI. The pipeline has several “unpiggable”
features such as 28 degree mitered bends, reduced valve sections and no launcher/receiver. Even
though the pipeline is “above ground,” it rests directly on over 300 supports and is encased in over
twenty bulk-heads, each four feet wide. The paper will discuss the project phases of (1) integrity
assessment method tool selection, (2) planning, (3) fabrication of components, (4) mobilization, (5)
installation of components, (6) cleaning, (7) in-line inspection, (8) demobilization, and (9) analysis.