What Causes an Eruv to Become Physically Broken? June 30, 2015 by National Eruv Initiative If one component of the entire Eruv is broken, 99% of the time the entire Eruv is not usable.
Discussion by Rabbi Bechhofer on Eruvin in America, author of The Contemporary Eruv: Eruvin In Modern Metropolitan Areas January 30, 2015 by Rabbi Yosef Gavriel Bechhofer Video In this video, Rabbi Bechhofer highlights common problems with community Eruvin.