SR 522 – Paradise Lake Road Interchange - Open house

SR 522 – Paradise Lake Road Interchange

Dec. 5, 2018 open house

Nearly 150 people attended the open house on Wednesday, Dec. 5 at Hidden River Middle School on Paradise Lake Road. During the open house, community members viewed the preliminary preferred alternative selected by WSDOT from the two alternatives displayed at the Oct. 2 open house. 

WSDOT, following feedback from the Technical Advisory Committee and the community, selected the concept known as alternative one. The informaiton available at the open house showed more details of what the preliminary preferred alternative could look like. Most notably, the concept showd considers the options of using up to four roundabouts at key locations to improve traffic flow. 

View the preliminary preferred alternative on the WSDOT Flickr project page

Key characteristics include:

  • Removal of the existing signal at SR 522 and Paradise Lake Road.
  • Elevating SR 522 near SR 524/Maltby Road.
  • New on- and off-ramps.
  • New roundabouts at the end of the new ramps.
  • Removing a portion of the existing Paradise Lake Road.
  • Creating a new roadway on the east side of SR 522 to provide access to the highway and link directly underneat to SR 524/Maltby Road. 

Benefits of the preliminary preferred alternative include:

  • Reduces traffic congestions by removing the traffic signal and separating SR 522 from local traffic. 
  • Improves east-west connectivity.
  • Improves local fish passages.
  • Improves safety by reducing the risk of rear-end collisions during stop-and-go conditions.

Oct 2, 2018 open house

More than 200 people attended the open house on Tuesday, Oct. 2 to review the preliminary preferred concepts selected by WSDOT and the Technical Advisory Committee (TAC), which consists of representatives from Snohomish County public works, transportation and planning departments and the city of Monroe. The WSDOT project team started by analyzing 20 alternatives. Based on initial screening criteria, WSDOT presented five alternatives to the TAC for review. The TAC suggested additional alternatives. The TAC then narrowed down the concepts further by using criteria such as cost, safety, effects on local surface streets, impact on SR 522 and forward compatibility (reducing the amount of work that would need to be redone or demolished when the highway is widened). The project team presented an open house summary, including community comments, to the TAC during the final meeting. Below is a description of the two alternatives presented at the open house.

Alternative 1: ramps at new SR 522 overpass

Key characteristics

  • Adds a bridge on SR 522 to pass over Paradise Lake, separating highway traffic from surface streets.
  • New on- and off-ramps at Paradise Lake Road provide access to SR 522.
  • Improves traffic flow on West Bostian Road.
  • Improves safety conditions on SR 522.

Potential issues

  • Removes connection from 91st Avenue Southeast to 212th Avenue Southeast.
  • Requires removal of fish barriers.

View a photo of alternative 1 on WSDOT’s Flickr page

Alternative 2: ramps at existing Paradise Lake Road

Key characteristics

  • Adds a bridge on SR 522, separating highway traffic from surface streets.
  • Maintains existing on- and off-ramps at SR 522 and Paradise Lake Road.
  • Supports land use by maintaining access to local businesses.
  • Improves safety conditions on SR 522 and Paradise Lake Road.

Potential issues

  • Less direct connection between SR 522 and SR 524.
  • Construction may affect traffic flow.
  • Removes connection from 91st Avenue Southeast to 212th Avenue Southeast.
  • Requires removal of fish barriers.

View a photo of alternative 2 on WSDOT’s Flickr page

SR 522 - Paradise Lake Road Interchange - Open house