Planning on heading north on I-93 from Dorchester late Friday morning? One word: Don't

The state Department of Transportation alerts us that I-93 north between Columbia Road in Dorchester and Rte. 28 at the Medford/Stoneham line will be subjected to a two-lane rolling roadblock as crews patch potholes between 10:15 a.m. and 1 p.m. tomorrow.

"Some delays should be expected," they say.