It's not quite as odd as the neighborhood overlay shown here, but the third runway at Seatac Airport was built on the edge of a ravine, and the approach lights

It's not quite as odd as the neighborhood overlay shown here, but the third runway at Seatac Airport was built on the edge of a ravine, and the approach lights are therefore strung along a truss, which crosses over a nearby highway - you drive underneath the lighting structure when approaching to the airport from the north. https://i.redd.it/uxbw610dgpx01.jpg https://i.redd.it/uxbw610dgpx01.jpg