Chain Bridge will be completely closed on two upcoming weekends for major construction work, officials said today. The bridge will be closed beginning at 8 p.m. on Friday, Jan. 29 and will reopen at 5 a.m. on Monday, Feb. 1. It will close again on the following weekend, from 8 p.m. on Friday, Feb. 5 to 5 a.m. on Monday, Feb. 8. The closures will mean zero access to the bridge from either the District or Arlington on those two weekends. DDOT says drivers should plan to use alternate routes to cross the river, including the American Legion, Key, Roosevelt, Memorial and 14th Street Bridges. DCist says: don’t forget that the 14th Street bridge is pretty messed up these days, too. The Chain Bridge project began in June, and all of the lanes of the bridge are expected to reopen to traffic in mid-to-late February, weather permitting.