From 2008 to 2013, the Spokane Street Viaduct section between Interstate 5 and State Route 99 was rebuilt and widened. The widened roadway has three lanes in each direction and shoulders. A new westbound on and off ramp was built at 1st Ave S and replaced the dangerous 4th Ave S off-ramp. A new eastbound off-ramp to 4th Ave S opened August 16, 2010.
