Since has achieved the following results through 2017: n Validated safe operating pressure by strength-testing nearly 1,100 miles of gas pipeline. n Replaced more than 200 miles of gas transmission pipeline. n Automated more than 290 valves, enabling remote-control shutoff of gas in an emergency. n Retrofitted more than 850 miles of gas transmission lines to accommodate in-line inspection tools, or “smart pigs,” which are used to inspect the condition of pipelines using sophisticated technology.