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