It seems like this crossing has been under construction for a long time without much progress being made recently.
This is the crosswalk that is being replaced, it is on the Westbound side of River Road (Maryland Route 190) in Bethesda. There is no intersection or signal at this location.
This crosswalk on the eastbound side of river road is not being replaced, however, you can see a traffic light is being added.
After crossing Eastbound River Road, but before crossing Westbound River Road, the sidewalk sweeps up towards the top of a hill.
The new crosswalk across Westbound River Road is near the top of the hill, giving pedestrians better visibility. There will also be a streetlight and a traffic light here.
After crossing river road, you will be able to continue right towards Walt Whitman High School, or left towards the old crossing.