W 105 Steep Descent 11 Nov 2014 Category: Warning Signs Description Description W 105 Steep Descent The W 105 Steep Descent sign should normally be used where the down gradient is greater than 10% for a distance of at least 30m. Click to rate this post! [Total: 0 Average: 0] Related products W 007LR Staggered Junctions – Left/Right W 010L Side Road on Inside of Left Bend W 002R Side Road Right W 004L T-Junction (Type 2) – Left