Here is the full list of all 20 The Bridge achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
Collect all hidden wisps.
Complete all mirrored worlds.
Complete The Mirrored Garden with 5 inversions.
Finish Mirrored Chapter IV.
Finish Mirrored Chapter III.
Finish Mirrored Chapter II.
Complete The Intersection without walking.
Complete The Library being no louder than a whisper.
Complete The Timepiece in less than 1 minute.
Complete The Corridor with 3 inversions.
Complete The Precipice without rotating.
Finish Mirrored Chapter I.
Catch the unchained key in The Mirrored Courtyard.
Cross The Bridge.
Finish Chapter IV.
Finish Chapter III.
Complete The Aftermath with 2 inversions.
Finish Chapter II.
Fall for 30 seconds.
Finish Chapter I.