Eight downtown streets will be closed, lanes will shrink and busses will be diverted to accommodate the Baltimore Running Festival on Saturday.

The one-day festival includes a marathon race, a half-marathon and other distance races that will take runners through downtown and other parts of the city.

For more information on bus route changes, riders can visit mta.maryland.gov, or call 410-539-5000. Roads are expected to be congested and participants and spectators are encouraged to use light rail.

About 20 streets will have lane closures for part of the day, including Aliceanna Street from President to Boston streets, St. Paul Street from W. 28th to Light streets, and Harford Road from St. Lo Drive to 30th Street to Hillen Road.

The Baltimore Department of Transportation says these roads will be completely closed on Saturday:

Paca Street from Pratt to Lombard Street 5:30 a.m. – 9:00 a.m.

Camden Street from Paca to Howard Streets 6:30 a.m. – 3:15 p.m.

Russell Street from Lee to Pratt Street 6:30 a.m. – 10:00 a.m.

Eutaw Street from Pratt to Camden Streets 7:00 a.m. – 3:15 p.m.

Russell Street at Hamburg Street 7:00 a.m. – 10:00 a.m.

Hamburg Street Bridge from Russell to Leadenhall Streets 7:00 a.m. – 4:00 p.m.

Key Highway from Cross to Light Streets 8:00 a.m. – 11:45 a.m.

Light Street from Lombard Street to Key Highway 8:30 a.m. – 2:30 p.m.