From DDOT: "The District Department of Transportation (DDOT) today announced the completion of the 11th Street Bridge Project
's first major construction milestone: all 63 river piles for the three new bridges have been driven in the Anacostia River. The 110-foot-long concrete piles that will form the core of the new bridges' foundations were pounded into the river bed since construction began in December. [...]
"The new bridges will continue to take shape in the months ahead as contractors form four piers for each bridge by building struts and caps on the piles then begin erecting structural steel for the bridge decks this fall. Additional work with landside pile driving is also underway to improve connections to the Anacostia Freeway (I-295/DC-295) and the Southeast-Southwest Freeway."