Take I-270 S toward Washington. Take the I-370/Sam Eig Hwy. exit, Exit 9B-A, toward Metro Station (go 0.24 miles). Merge onto I-370 E via Exit 9A on the Left toward Metro Station/Gaithersburg (go 1.71 miles). Merge onto S Frederick Ave/MD-355 N toward Gaithersburg/Town Center (go 1.02 miles). Make a U-Turn onto S Frederick Ave/MD-355 (go 0.1 miles). 610 S Frederick Ave is on the Right.