Yeah I'm just wrong about that, my knowledge is mostly historical and it's hard for me to get out of the mindset of the L-carriers where amplifier interval was

Yeah I'm just wrong about that, my knowledge is mostly historical and it's hard for me to get out of the mindset of the L-carriers where amplifier interval was 2-10 miles. The amplifier interval on the fiber these days is long enough they just build one of these points each time instead of having line-powered amplifier vaults. That said out west where I am it's very common for fiber routes to follow the L-carrier routes and reuse the formerly line-powered amplifier sites for add-drop, but I believe they've had the utility install conventional power everywhere they've done that.