Warning Sign/Opening Bridge
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| Opening or Swing Bridge | |||
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| Opening or Swing Bridge sign (TSRGD 529) | |||
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| TSRGD ref : | 529 | ||
| From : | 1964 | ||
| To : | present | ||
| Common Plates : |  | ||
The Opening or Swing Bridge sign is used for any bridge where there is not a permanent link for traffic, and flow can be disrupted to let water traffic through instead.
Pre Worboys
The early version of this sign was simply a warning triangle with the text "SWING BRIDGE" below it.
Worboys report sign
The sign introduced in 1964 is an warning triangle depicting an open bridge. It uses TSRGD diagram 529.
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