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Hammersmith Flyover to reopen to light traffic - BBC News
"Bruce" wrote in message
... There are plenty of structures of this type (precast segmental pre-stressed post-tensioned) but I think the Hammersmith flyover was the first. I don't know of any subsequent structure of this type that lacks the essential combination of bridge deck waterproofing, proper drainage, adequate concrete cover to reinforcement/pre-stressing tendons and grouting of tendon ducts. So Hammersmith is very much a one-off. That doesn't mean that other structures don't have problems of their own, but the design and subsequent operation and maintenance practice related to the Hammersmith flyover seems to have combined in a way that could only end in tears. I bet the DfT (or the Highways Agency) are glad that they they ceded all the trunk roads within London to the GLA. I'm thinking it must have been transferred at about the same time that all those random motorways within London were downgraded? Paul S |
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