For the uninitiated, SFO typically lands planes on its parallel runways 28L and 28R, approaching from the east over the Bay. But when weather and maintenance conspire to shut down the usual setup, controllers have to get creative. Monday's configuration gave aviation enthusiasts a treat and probably gave a few passengers an unfamiliar view out their windows.

It's a cool spectacle, but it's also a reminder of just how operationally fragile SFO can be. This is a major international airport — the seventh busiest in the country — and a rainy Monday can throw its entire landing pattern into disarray. SFO has long been constrained by its runway layout, with two sets of parallel runways positioned so close together that simultaneous approaches are restricted in low visibility. The result? Delays cascade fast.

We've written before about the Bay Area's infrastructure challenges, and SFO is a perfect microcosm. Billions flow through this airport every year, yet its fundamental physical constraints haven't been meaningfully addressed in decades. Every time fog rolls in — which, this being San Francisco, is often — capacity drops dramatically. Add rain and a runway closure, and you get the kind of improvisation that's fun for plane spotters but not so fun for anyone trying to run an on-time operation.

None of this is new. But it's worth asking: at what point do we stop treating SFO's weather-related disruptions as unavoidable acts of nature and start treating them as infrastructure failures we've chosen not to fix? Rare runway configurations make for great photos. They make for lousy transportation policy.