Motorists on Interstate 270 could start seeing lane closures next week as construction crews begin resurfacing and restriping a highway spur that leads to the Beltway. The work marks the beginning of a $100 million project to ease traffic backups on the roadway, according to state transportation officials. “This is the first step in a major project to break daily gridlock,” Maryland Transportation Secretary Pete K. Rahn said in a prepared statement. The initial phase of the effort involves surfacing improvements on the section of I-270 that connects with the outer loop of the Beltway. The project, which is expected...