Also of interest is the Amsterdam Archive which is interesting not just for the bridge history but for history of all of Amsterdam including the Jokinen Plan to demolish the historic city centre.
Plan Jokinen - Wikipedia
Het Plan Jokinen is de naam van twee door de Amerikaanse verkeerskundige David A. Jokinen opgestelde visies op de stedenbouwkundige ontwikkeling van twee Nederlandse steden: in 1962 van Den Haag[1] en in 1967 van Amsterdam[2], beide uiteengezet in een brochure.
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Dashboard programma Bruggen en Kademuren
Bridges in Amsterdam and their repair status. The measures for the bridges with a red cross are in some cases still under preparation. Depending on the urgency, these may be temporary safety measures, but also life extension (maintenance) or renewal measures.