Updated post at 9:22 a.m.

D.C. Police said all lanes are now open on Constitution Avenue NW.

Updated post at 8:37 a.m.

D.C. Police said one westbound lane is open and all eastbound lanes are open on Constitution Avenue NW.

Original post at 7:44 a.m.

D.C. Police said Constitution Avenue NW is closed to traffic Wednesday morning after a tree fell in the roadway in the 1700 block, blocking all westbound lanes to traffic. One eastbound lane is also closed, authorities said.

For more transportation-related news, click here.