גשר גיא בן הינום

אזהרה לכהנים
אין להוציא ידיים או אצבעות מעבר לקווי הגדר הפנימית

According to the Jewish religion, Cohens are forbidden to be exposed to the impurity of a dead body.
Since the Ben Hinnom Bridge passes over the Ben Hinnom Valley, where there is a system of burial caves dating back to the days of the First Temple. Although it is not at all certain that these are Jewish graves, and although the bridge is high above the valley, priests still warn against the impurity of a dead body.

In the following photo from which the sign was taken, you can see the location of the sign on the fence of the bridge Click for a larger image

The bridge was photographed on the same day by the same photographer Click for a larger image

Translation of the text on the sign:
Ben Hinnom Valley Bridge

Warning to Priests
Do not extend hands or fingers beyond the inner fence lines