You have 2' tides, right? They're a little bigger here.
Here's the entrance to Foch Lagoon (note standing waves with exploding tops) where the entrance is "slack" about 45 minutes after slack in Douglas Channel. Disconcerting, to say the least, to be standing at the low tide line in the channel and look up at the waterline in the lagoon
__________________ "The most interesting path between two points is not a straight line" MurrayM
As Murray indicated, Dodd Narrows is just one of a number of passes in the area with significant current. Dodd really isn't even that fast compared to many it is just that it sits right to the South of a larger city with lots of commercial and recreational traffic.
To make it even more interesting, it is really narrow (about 50 meters?) and it has a dogleg. So usually traffic goes through one way. Boats line up waiting for slack on either side of the narrows. You can't see the opposite end so boats make a securite call before entering. Local etiquette has the boats going the direction of the fading current first, then the boats go through as the current starts to pick up from the opposite direction. You can easily get a dozen boats waiting on either side of the Narrows waiting for slack.
Very entertaining to see a tug pull a log boom through the narrows against an increasing current. The last time we went through, a pod of Orca swam right up through the fleet of boats to the South of the narrows waiting to go through to the North. The Orca didn't seem interested in waiting their turn and there were a bunch of boats trying to stay out of their way, idle their engines down, keep clear of other boats and clear the narrows before the current kicked up again.