The Blackwall Tunnel is old-school. It opened in 1897, back when people wore top hats and thought a steam-powered carriage was the height of technology. It’s older than your granny’s favourite tea set, and just like that tea set, it’s free to use.
Think of it as the kindly uncle of London’s road network. The Dartford Crossing charges you for the privilege of sitting in traffic. The ULEZ charges you if your car breathes wrong. But the Blackwall Tunnel just shrugs and says, “Get in, loser, we’re going to the other side of the Thames.”
Of course, “free” doesn’t mean “without cost.” You pay in a different currency: patience. The tunnel is legendary for queueing, especially on a Friday when everyone suddenly remembers they need to be in Greenwich right now.
The Real Price Is Your Sanity
Instead of a toll, Blackwall Tunnel charges you in minutes. You might sit there for twenty minutes, watching the same seagull on the same lamp post, wondering if you’ve slipped into a time loop. It’s a free tunnel, sure—but only if you value your time at roughly zero pounds an hour.
London drivers will pay a toll to use the Blackwall Tunnel from 2026
And then there’s the weirdest part: the height restriction. It’s a bafflingly small 4.0 metres (13 feet 1 inch). I once saw a delivery van reverse out of the entrance like a frightened crab, its driver cursing the day his GPS was invented. If you’re in a minibus or a removal van, the Blackwall Tunnel says no.
This creates a hilarious class system on the approach road. The tiny cars zip forward with smug confidence. The big vans slink away, humiliated, heading for the Rotherhithe Tunnel (which is also free, but has equally demented height rules). It’s like a medieval joust, but with wing mirrors and road rage.
