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 The Library being no louder than a whisper.
Complete The Precipice without rotating.
Complete The Intersection without walking.
Complete The Corridor with 3 inversions.
Complete The Timepiece in less than 1 minute.
Complete all mirrored worlds.
Finish Mirrored Chapter IV.
Complete The Mirrored Garden with 5 inversions.
Finish Mirrored Chapter III.
Complete The Aftermath with 2 inversions.
Finish Mirrored Chapter II.
Finish Mirrored Chapter I.
Catch the unchained key in The Mirrored Courtyard.
Cross The Bridge.
Finish Chapter IV.
Finish Chapter III.
Finish Chapter II.
Fall for 30 seconds.
Finish Chapter I.