ARLINGTON , Va. -- Cranes stand by for the arrival of the first precast concrete support arches to arrive at the Arlington National Cemetery Millennium Project here March 3, 2015. The archways will support the loop road bridge, which spans a restored stream at the cemetery’s 27-acre expansion project. The project will add nearly 30,000 burial and niche spaces with a mix of above-ground columbariums and in-ground burials. (U.S. Army photo/Patrick Bloodgood)