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