exit. This bypass through Madison allowed construction of the bridges over Zeirdt Road and the earthwork to be done near what is now the golf driving range and for construction of the Wall Triana exit and airport exit. The eastern terminus at Governors Drive was to allow for construction of the elevated sections crossing Memorial Parkway and extending over Pratt and Oakwood to the terminus at US 72. Phase 3 opened the Interstate from County Line Road to the Governors Drive exit. This gave access via the Airport exit and Wall Triana exit. Phase 4 was completed in 1991–1992, with the completion of the bridges and overpasses near Mooresville and the Interstate was opened directly from I-65, bypassing the city of Mooresville. Phase 5 opened the "elevated sections" from Governors Drive to the US 72 intersection. At the time, this intersection with US 72 was no longer Interstate and was controlled by a red-light. This also opened the interchange of I-565 and Memorial Parkway. When I-565 was first opened, it was signed as a north–south highway. This created some confusion because the highway travels roughly east–west. It was resigned soon after opening. In 1996, the entirety of I-565 was designated the "Admiral Alan B. Shepard Highway" in honor of astronaut Alan Shepard. Unlike many urban Interstate Highways, which have a uniform speed limit of , I-565 has a speed limit of , continuing well into the city. Just west of the interchange with Memorial Parkway, the speed limit decreases to and remains so for the entire portion east. Huntsville bus accident On November 20, 2006, a school bus carrying high school students collided with another vehicle or swerved to avoid a collision and drove off an elevated offramp, falling nose-first approximately to the ground. Four teenage girls were killed in the accident. Recent development Phase 6 was completed in 2010. This slightly extended I-565 from the then red light at US 72 to the east end and converted the connection with US 72 from an at-grade intersection into a full interchange. This kept traffic going over Chapman Mountain from having to stop at the intersection which created morning and afternoon commuter backups. After this intersection, controlled access officially stops, but the highway is still a four-lane highway and does not require a stop until the red light at the bottom of Chapman Mountain at the Moores Mill intersection. Work began