Location Washington Blvd and MD 32, Howard Cty Reassurance shield after the 32 interchange. Location: Washington Blvd and Patuxent Range Rd, Howard Cty Reassurance shield a mile later. Location: Washington Blvd and Waterloo Rd, Howard Cty Shortly thereafter, we’ll approach MD 175. Follow 175 west to I-95. Location: Washington Blvd and Waterloo Rd, Howard Cty … Continue reading U.S. Route 1, MD-32 to MD-175