Traffic Alerts

(See map below)
Updated 9/13/19

1.  Atlas 236 – 55th Avenue W and 236th Street SW

Expect lane shifts on 56th Avenue W.  Sidewalk will be closed on 236th St. SW between 55th Avenue W. and 56th Avenue W during the day.  Also expect lane closures on 55th Ave. W.

2.  Main Street Revitalization – 236th Street SW and 58th Avenue W

The Main Street Revitalization Project construction work on 236th Street SW and 56th Avenue W is ongoing and on schedule. Speed limits within the construction zone are currently reduced to 20 mph.

During daytime working hours, Eastbound 236th St SW will continue to be closed between 58th and 56th Ave W during when brief lane shifts and lane closures with flagging may occur. Two-way travel throughout the construction area will be provided outside of daytime working hours. Flaggers will be on duty to help people through the construction zone.

Closure of roadways for project paving is schedule for shortly after the beginning of October. Preparation for paving causes the elimination of the left-turn lanes at the 236th/56th signal, and also leads to the closure of 58th Ave W north of 236th St SW beginning Monday 9/16 with traffic detoured to 56th Ave W. Significant delays during peak commute periods should be expect throughout until paving is complete, and will be worst the week of 10/7. Additional information will be provided Monday 9/16.

3.  220th Street SW Adaptive Signals Project

No significant construction activities are anticipated during this week.

4.  Sound Transit

WSDOT’s I‑5 Right-of-Way:  Tree removal and preliminary grading activity are ongoing. Lane shifts and reductions in the number of I‑5 travel lanes are scheduled during overnight periods. At least two overnight closures of the on and off-ramps at 220th St SW are likely throughout this week, including both weekend and weekday nights.

Private Parcels:  Some demolition work of single family properties throughout Mountlake Terrace is ongoing with related minor material and equipment hauling occurring. Onsite site construction at the former Roger’s Market site continues.

City Roadways:  Temporary lane shifts may be encountered near Sound Transit activities at single family home demolition and the former Roger’s Market site.

5.  I-5 Paving

Painting of roadway markings at the northbound I‑5 off and on-ramps at 236th St SW and 220th St SW is scheduled for Monday-into-Tuesday and Tuesday-into-Wednesday nights. Short-term closures and/or detours may be in place.