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