STORRS, Conn. (AP) — About 23,000 undergraduate students are set to start classes Monday at the University of Connecticut.

The school says it's expecting about 12,300 students to move into residence halls on the main campus in Storrs this weekend, with another 425 living in university housing near the satellite campus in Stamford.

The student body includes about 5,500 freshmen, including about 4,000 from 164 of Connecticut's 169 cities and towns.

The school year is beginning before a major summer construction project on the main campus is completed.

UConn officials say that means drivers can expect delays, unusual traffic patterns and detours.

Campus busses also won't be running over the weekend, though the school is offering on-demand accessible van service for those who need it.