Does a publicly-owned city with only one entrance require an exclusion (shiur) for a valid city eruv?
Synopsis
A publicly-owned city with only one entrance is treated like a courtyard and does not require excluding any portion; all residents may form one eruv partnership.
More in Eruv Techumin Food Requirements
Can a city that was originally private property (owned by one individual) be included in a single city-wide eruv without any exclusion?
4 opinions
Does a publicly-owned city with two entrances (through which the public enters one and exits the other) require an exclusion (shiur) for a valid city eruv, even if it later became private property?
4 opinions across 3 eras
What is the minimum valid exclusion (shiur) for a city eruv when an exclusion is required?
4 opinions across 3 eras
Can houses excluded from a city eruv (as the shiur) qualify even if their entrances face outward (away from the city) or if they are animal/storage buildings that themselves don't require an eruv?
2 opinions
Can non-Jewish houses count as the required exclusion (shiur) for a city eruv?
4 opinions across 3 eras
Does a ladder (on the city wall) on one side count as a 'second entrance' that would require a shiur for a city eruv?
3 opinions
Does a garbage heap (ashpah) in front of one of a city's two entrances render that entrance legally non-existent, so that the city can have a single eruv without a shiur?
3 opinions
If one alley in a city (of private origin) did not participate in the city eruv, does that alley prohibit carrying for all other residents?
2 opinions
Related from other topics
What are the formal requirements for a valid Birkat Kohanim?
Birkat Kohanim — Detailed Laws
What is the minimum amount of water (shiur) required for hand washing?
Washing Hands for Bread
Once a fire meets the required threshold before Shabbat, may one use it on Shabbat regardless of whether it is on the ground or on a stand, and regardless of whether it was made from materials not valid as Shabbat lamp wicks?
Hatmanah — Insulating Limits
What are the requirements for the shin (letter) embossed on the tefillin housing, and does switching the three-headed and four-headed shin sides invalidate?
Writing Tefillin
What is the minimum width and structural strength required for a valid korah?
Valid Cross-Beam Materials
What is the minimum required amount (shiur) for an eruv at the outset, and how is it calculated based on the number of participants?
Eruv Chatzeirot Contributions
Discussion
Discussion coming soon.
The Daily Law
One question. Every opinion. Every morning.
A new halakhic question and the full spectrum of rabbinic thought, delivered daily.