Traffic through the tunnels is heavy at almost all times of day. At the north end of the tunnels is an interchange with Interstate 5 (Golden State Freeway), in which the leftmost lane makes a hard turn onto the offramp. There are also sharp exit and entrance ramps, on the right lane, at Solano Avenue after the first tunnel. Since the tunnels' incorporation into Arroyo Seco Parkway (now SR 110), Figueroa Street has been discontinuous. It merges into SR 110 at Alpine Street in Chinatown, south of the tunnels, and splits in Highland Park, north of the Figueroa Street Viaduct over the Los Angeles River.