“Maintains” being used in a rather loose sense of the word, of course. I might sentence myself to some community service this summer and take a push broom to shove all of the glass and sand back into the travel lanes on the Roosevelt.
Also, I think we established last year that the PG County Parks folks maintain the Wilson Bridge, right? I ride it regularly, and no complaints at all (unless I forget to bunny hop those gaps, and hit one at speed, that is).
Update: Due solely to my own awesome powers of recollection, and not at all to any subtle jabs by email, I now recall that:
“The Maryland State Highway Administration maintains the Wilson Bridge, and the Maryland-National Capitol Park and Planning Commission maintains the ramp down to the bridge and the deck over the park and the trail to National Harbor.
If you are injured or need assistance, don’t hesitate to call the Park Police for assistance. Their Emergency Number is 301-459-3232. The non emergency number is 301-459-9088. They will assist anyone on the trail system that is in need including if you are on the bridge. Officers are stationed in the area from 5:00 am until 2:00 am.”