From the project's web site:
Rhode Island Avenue Pedestrian and Bicycle Bridge Construction Update District Department of Transportation (DDOT) contractors have completed installation of the 200 foot bridge truss, connecting the completed piers and ramps adjacent to the Rhode Island Avenue Metro Station and the Metropolitan Branch Trail. This represents a major milestone activity and crews will now focus on remaining tasks to finish up the project. This includes installation of pedestrian railing, protective acrylic panels, electrical system for lighting, and protective netting.
Some pictures of them preparing the span.
|Working on the span|
|And then it's in place.|
|Putting in the final touches|
|The view from the Rhode Island Avenue platform|
Here's a rendering of what the final product should look like.
So come next spring if not sooner this should be open for people to use.