Oops, looks like you're correct.
I was pulling from the engineering diagrams and misread an announcement that the bus/bike lanes were complete.

A map of construction is available on the Maryland State Highway Administration's website: http://apps.roads.maryland.gov/WebProjectLifeCycle/ProjectInformation.aspx?projectno=HO1415113

I drive on this road on the weekends. They started construction on this section of highway last fall.
Here's a press release from the Maryland Department of Transportation talking about breaking ground on the widening:
http://www.mdot.maryland.gov/News/Releases2017/2017_Aug_31_Gov_Hogan_Breaks_Ground_on_MD_32_Widening