Carol Clark's body was found in reeds at the side of a canal in March 1993.
A man in his 60s was arrested at a property in Gloucester on Tuesday morning.
The vehicles involved are limited to 12mph so delays are expected on the M5 and other roads.
Detectives hope a note written by Carol Clark could help find the person who murdered her.
Our weekly gallery includes bonfire night celebrations and a look around a property featured on TV.
Residents will be told the details of their new landlord shortly, the Canal and River Trust said.
The charity is selling off all the properties on Dock Road as one lot for over £1.5m.
Mark Glover fell from the Pelican of London into a dry dock in October 2023.
Historians want local residents to be able to grasp the "full significance" of the site.
