From a traffic technician at the City of Kennewick:

Beginning at 12:01 am until 4 am, Friday, Feb. 1st, the traffic signal at Gage Blvd. & Steptoe St. will be shut down and turned into a 4-way stop intersection.  This is to allow for the replacement of equipment that was damaged in a recent collision. The work is being done at night to help reduce the impact to daily commuter traffic and businesses.  Please use alternate routes if possible.  Thank you for your cooperation.

Happy motoring and lets be careful out there.