Reference for Eruvin 2:4
רַבִּי יְהוּדָה אוֹמֵר, אִם הָיְתָה דֶרֶךְ הָרַבִּים מַפְסַקְתָּן, יְסַלְּקֶנָּה לַצְּדָדִין. וַחֲכָמִים אוֹמְרִים, אֵינוֹ צָרִיךְ. אֶחָד בּוֹר הָרַבִּים, וּבְאֵר הָרַבִּים, וּבְאֵר הַיָּחִיד, עוֹשִׂין לָהֶן פַּסִּין, אֲבָל לְבוֹר הַיָּחִיד עוֹשִׂין לוֹ מְחִצָּה גָבוֹהַּ עֲשָׂרָה טְפָחִים, דִּבְרֵי רַבִּי עֲקִיבָא. רַבִּי יְהוּדָה בֶן בָּבָא אוֹמֵר, אֵין עוֹשִׂין פַּסִּין אֶלָּא לִבְאֵר הָרַבִּים בִּלְבַד, וְלַשְּׁאָר עוֹשִׂין חֲגוֹרָה גָבוֹהַּ עֲשָׂרָה טְפָחִים:
R Yehudah says: If a public path intervened [between the boards], he diverts it (the path) to the side [outside of the boards, so that people not walk between the boards. For this would render it a public domain and negate the enclosure.] The sages say: He need not do so. [The halachah is not in accordance with R. Yehudah.] Boards may be used (as an enclosure) for both public (water) pits, [in which instance, if the water is used up, they remind each other (not to carry in the enclosure). For they permitted well-boards only so that water be available for the beasts of the festival pilgrims. And if there is no water there, the boards do not have the status of an enclosure.], public wells, and individual wells. [These are also permitted; for, being live wells, their water is not depleted.] But for an individual (water) pit, a partition ten tefachim high must be made. These are the words of R. Akiva. R. Yehudah b. Bava says: Boards may be used only for a public well, [in that it possesses two positive features. And this is the halachah. And it is permitted to draw water and to take it from the well using well-boards only in order to water the beasts of the festival pilgrims and in Eretz Yisrael alone. But it is forbidden to take out water for a man himself to drink. Instead, he must go down in it and drink or make a partition ten tefachim high.], and for the others, he must make a "belt" (partition) ten tefachim high.