But this week the bridge has been closed even to pedestrians and cyclists.
And its not just traffic crossing the bridge, the PLA has closed the river to all vessels at Hammersmith Bridge!
The problem is the recent heatwave we've had in London has made cracks in the bridge worse and there's a real concern about it's integrity. In other words, it might fall down:
Hammersmith Bridge is falling down,
Falling down, falling down.
Hammersmith Bridge is falling down,
My fair lady
Oh dear!
I hope they quickly manage to stabilise the cracks as this is a lovely bridge, and we can't have an Oxford - Cambridge boat race without the ability for boats to go underneath:
The other problem is that London needs its bridges to connect north and south London and a lot of local communities are finding this a real issue.
The difficulty is it has been estimated to cost £120 million to fix - and that was before the cracks got bigger. And of course the economy has sort of tanked recently.
2020 eh?
Update 1: British Rowing is very concerned about this
Update 2: FAQ from the PLA here