Chain Bridge was scheduled to be closed this weekend for major construction work, but word from the District Department of Transportation today is that the work has been canceled due to expected inclement weather. It’s going to be cold and probably snowy this weekend, with temperatures ranging from the upper teens to the low 30s. But the Chain Bridge work had been planned to include a concrete pour, and it needs to be at least 35 degrees to do that, according to DDOT spokesperson John Lisle. Weather permitting, the closures will be moved back a week, so look for Chain Bridge to be closed off to all traffic, vehicular as well as pedestrian, on starting the night of Feb. 5 through the morning of Feb. 8, and then again the night of Feb. 12 through the morning of Feb. 15.