The MAX Blue Line is a light rail line serving the Portland metropolitan area in the U.S. state of Oregon. Operated by TriMet as part of MAX Light Rail, it connects Hillsboro, Beaverton, Portland, and Gresham. The Blue Line is the longest line in the network; it travels approximately 33 miles (53 km) and serves 48 stations from Hatfield Government Center to Cleveland Avenue. It is the busiest of the five MAX lines, having carried an average 55,370 riders each day on weekdays in September 2018. Service runs for 221⁄2 hours per day from Monday to Thursday, with headways of between 30 minutes off-peak and five minutes during rush hour. It runs later in the evening on Fridays and Saturdays and ends earlier on Sundays.