As I was coming Over Cramond Brig this morning I met a crew of workmen installing a "paint and planters" trial chicane just to the west of the bridge.
There are a couple of notices tucked behind the signs on the walls but I didn't stop to read them. Looks like they are trying to slow cyclists coming down the hill before they cross the bridge.
Take care if you're coming down the hill and expecting the keep your speed up over the bridge.