|20th March 1975|
The Cleddau Bridge is a bridge on the A477 crossing the River Cleddau in Pembrokeshire.
Near to the Cleddau Bridge is a smaller sibling. The smaller bridge, which crosses Westfield Pill, opened at the same time as the main structure and was designed by the same engineers. This smaller bridge is reached immediately before the main structure when traveling South on the A477.
The toll is 75p for cars, payable at toll booths, where barriers were introduced in 2004 as many vehicles drove off without paying.
It was decided in the late 1960s that a bridge over the Cleddau was needed to allow better access to Milford Haven, fast growing as an oil port. The contract for building the bridge was awarded in September 1968.
The bridge utilised a what was, at the time of construction, a relatively new construction method - a box girder. During its construction phase, the box girder section was jacked into place across its piers. This process sets up forces that do not occur in the completed bridge, and tragically, in 1970, the part constructed bridge collapsed, killing four people. Similar collapse of a bridge in Australia lead to a change in British design standards to account for the increased forces experienced by the deck during construction. Bridge construction restarted in 1972 and was completed for the bridge to open in 1975.