This is the ramp that drivers use coming from Pennsylvania Avenue and Barney Circle, not the one used for 8th Street when coming inbound from the 11th Street Bridge.

The closure is happening because the new flyover for traffic coming westbound from from the 11th Street freeway bridge will be bringing traffic onto the westbound freeway via a ramp that runs right across the 8th Street exit site (this photo of the ramp as seen from 11th Street from back in January shows on the far left where the 8th Street exit is and why it's having to be closed).

The Marines can't be too unhappy about this closure, since the ramp runs right between the two halves of Building 20, which isn't exactly a prime security configuration.

In the press release, DDOT also says that it expects the new ramp connecting Southbound DC-295 (on the east side of the river) with the inbound 11th Street Freeway Bridge (I-695) to open by July 4, and that this "will have a direct connection to I Street at 10th Street, SE" (which is where the current ramp from the inbound 11th Street Bridges is).

As to when/how the other new ramp that will bring traffic up to 11th Street from the Pennsylvania Avenue/Southeast Freeway connector will open, I don't know. There are a lot of traffic flow changes are coming to 11th Street between I and O over the next few months--the new ramp to the outbound freeway bridge from M just east of 11th is looking closer to completion, as is the 11th Street Local bridge. If only someone would get over there to take some photos of the progress! (Well, I did take *one.*)

One of DDOT's spiffy videos detailing all the new movements sure would be handy about now.