Just in time for the Trump inauguration! (which is perhaps why that man is thinking of throwing himself into the creek).
DDOT held a public meeting on the construction of the Klingle Valley Trail and the restoration of Klingle Creek. This included several renderings of the trail, such as the one above, and a schedule.
Currently, the project is finishing up site preparation and in the process of gas line replacement on the west end of the valley. That will continue until November and then stream restoration and east side gas line replacement will start and last until spring. Stream restoration will be prohibited from March 1 to June 1, and during that time work will begin on the trail west of Connecticut Avenue and on the ramp to Beach Drive.
The west end of the trail will connect to the remaining portion of Klingle Road NW, just east of Cortland Place NW.
A lot of effort is being put into controlling storm water, including removing the existing pavement, using permeable pavement where needed and adding bioretention facilities.
I believe the current roadway along the ramp is to be narrowed to make room for the 8' wide Trail which will connect to the Rock Creek Park Trail on the east end.
In May, work will begin on the sidewalk from the east trailhead to Porter Street, replacing the current desire line which the red arrow below points to.
All of that trail work, and the gas line replacement, is to be done by the end of June.
In July, work begins anew on the stream restoration and starts on the trail section from Connecticut Avenue to the east Trailhead.
The trail as it passes below the Connecticut Avenue Bridge.
The east trailhead will be just west of Rock Creek and Porter Street.
Stream restoration should be complete by November 2016, Klingle Road between the trail and Porter will be repaved on October of that year and by the end of the year, the whole trail - and the project will be complete.
The new trail will have lighting, landscaping, fencing, benches, trash cans and signage. And the whole project should result in a cleaner Rock Creek too.
One addition that might makes sense in the future would be to add a trail connection along the right of way that used to be Jewett Street. On this map from 1937, you can see that it used to connect to Connecticut Avenue, and it's the reason that the Kennedy Warren Apartments are shaped like they are.
I'm not sure when this road was removed (sometime between 1951 and 1970 though), but a trail along its extant ROW would connect to the current North Road and thus to Connecticut Ave, creating a useful connection between Klingle/Rock Creek and Connecticut Ave - as well as a better way to get around the Zoo for those travelling east-west.