Testing will take place from 7 a.m. to 2 p.m. July 14 to 17, 21 to 24 and 28 to 31 and Aug. 4 to 6. While the beaches will remain open, closed areas will be marked by barriers, signs and buoys.

The July Fourth weekend is approaching; here's what you should know for your travel plans to Washington D.C., Maryland, and Virginia. CLOSED RELATED I TRAFFIC ALERT: Road closures expected for the ...