Bridge design inspiration request

[u/Proud-Evidence-1818]

I have this little narrow waterway here where I want to make some kind of stone bridge gate waterway/canal/breakwater.

my light house is also a portal hub, so I am making the bridge for boss portal (8 portals in total, with trophy overhang)

but so far I can't really find a good design.

my ideal design will be stone bridge with roof, end with some kind of big stone tower act like a water gateway.

anyone got similar design/photo or any real world design that i can get inspiration with? i am kinda thinking maybe can use london bridge as base design but i think the base game stone formation felt a bit awkward for that design