Apparently there is a small part of Medfield on the far side of the Charles River at the site where Rte. 27 now crosses the Charles River into Sherborn. This anomaly occurred when the new section of Rte. 27 was constructed, I am told, because of the manner in which that bridge was built. The bridge was built entirely on what was then the Medfield side of the then existing course of the Charles River. Only once the bridge was built was the river then redirected from its original path to flow under the bridge. The dividing line between the towns of Medfield and Sherborn was the center line of the Charles River. Therefore, the far side of the Rte. 27 bridge stands on Medfield soil.
When Medfield’s well number 6 was being planned, Medfield needed to drill test wells on the far side of the Charles. Ken Feeney did so and was chastened by Sherborn officials for not seeking permission in advance, and he was able to reply that he only drilled on the Sherborn side in what is Medfield.
Medfield02052's Blog 