Starting Monday morning, Broad Street will close for good east of 5th Avenue as Mercer Street officially becomes a two-way street all the way past Seattle Center.
SDOT says the closure is necessary to allow for additional construction associated with the Mercer corridor project and the Alaskan Way Viaduct replacement project.
The closed stretch of Broad Street will eventually become part of the expanded lanes of Mercer, which will eventually grow from two lanes in each direction to three.
A spokesman for the Seattle Department of Transportation says drivers should expect some delays Monday, but there is a silver lining.
"Coming into Downtown or into Seattle Center from I-5, it actually should be a little easier," said Eric Tweit with SDOT. "Even though we won't have the full three lanes that we're going to be building over the next year, there will be two lanes to take you all the way to Seattle Center and Queen Anne without having to make any turns of Mercer Street."
You can find more information and the latest news on the Mercer Street construction on the SDOT Web site.