Two bridge openings could delay trains on Metro-North’s New Haven Line Sunday morning.

The Devon Bridge, which carries trains over the Housatonic River between Milford and Stratford, is scheduled to be opened at 10 a.m.

The Cos Cob Bridge in Greenwich is scheduled to be opened at 10:30 a.m. today.

Each opening could cause delays of 20 to 25 minutes, according to Metro-North, which advised commuters to listen for updates at stations and on their apps.