Question 1

Where is Mitake Bridge?

Accepted Answer

Mitake Bridge is in Ōme, Tokyo, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of SSSS.GRIDMAN does Mitake Bridge appear in?

Accepted Answer

Mitake Bridge is a real place that appears in SSSS.GRIDMAN.

Question 3

Can I visit Mitake Bridge?

Accepted Answer

Yes. Mitake Bridge is a real place you can visit. Check what it looks like on Street View before you go.

Question 4

Where was SSSS.GRIDMAN filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Mitake Bridge is one of those real places.