Construction on the project to replace the Washington Blvd bridge over Route 110 next to the Pentagon is now underway.

The $29.5 million endeavor will replace the existing bridge — built in 1941 and now “considered structurally deficient,” according to the Virginia Department of Transportation — with a new structure that expands the shared-use path to 14-feet wide, add an 8-foot sidewalk and is longer, wider and taller than the existing bridge.

While construction has begun, traffic impacts won’t start until May.

“VDOT will maintain a minimum of two lanes in each direction on both Routes 27 and 110, other than temporary night closures to install bridge girders,” VDOT said in a press release. “Pedestrian traffic will be shifted to a temporary bridge in 2016.”

When complete, the bridge will include homages to the military, with four medallions commemorating the U.S. Army, Navy, Air Force and Marine Corps. This is the second Washington Blvd bridge VDOT is replacing with a medallion-adorned new structure — just down the road, the new bridges over Columbia Pike will have medallions commemorating Arlington’s Freedman’s Village.

The new bridge was originally scheduled to start construction in 2014 and wrap up this year. VDOT has adjusted its timeline, and now expects to complete the bridge by May 2018.

Images via VDOT