Mara d'asra of Crown Heights
Rabbi Zalman Shimon Dworkin and the Eruv Question in Crown Heights
Rabbi Zalman Shimon Dworkin served as the mara d'asra of Crown Heights. His position forms an important part of the neighborhood's established practice and of the wider rabbinic ruling concerning eruvin in large cities.
The established position in Crown Heights
When Rabbi Avrohom Osdoba and Rabbi Shlomo Yehuda Halevi Segal ruled on the proposed Crown Heights eruv in 5776, they placed their decision in the line of the earlier psak associated with Rabbi Dworkin. Their words were unequivocal: no valid eruv existed within the neighborhood, and carrying remained forbidden.
The later notice of Rabbis Osdoba and Braun again named Rabbi Dworkin while describing the consistent position of the Crown Heights Rabbonim. His tenure is therefore part of the history behind the present psak, not a separate or competing approach.
The large-city proclamation
Rabbi Dworkin's name appears on the Kislev 5739 proclamation of the Union of Orthodox Rabbis, where he is identified as Av Beis Din of Lubavitch. The proclamation restated the earlier Manhattan prohibition and declared that the same concern applied to New York and other large cities.
That language matters for Crown Heights because the neighborhood is part of Brooklyn, not an isolated small town. The physical and halachic questions must be judged as part of the city around it, including the status of its streets and the movement of the wider public.
The practice he left in place
Crown Heights did not carry on the strength of a neighborhood eruv during Rabbi Dworkin's tenure. The later Rabbonim did not present the new proposal as the restoration of an accepted local eruv; they rejected it and continued the established practice.
A separate letter on Rabbi Dworkin's stationery has been reported but is not presently available for publication. The sources that can be read here are the collective 5739 proclamation and the later Crown Heights rulings that expressly invoke his position.