2025 Drawing - Trimming of Bridge Embankments.pdf

This is a Kentucky Department of Highways standard drawing (RGX-100-05) detailing the treatment of embankments at end-bents. The drawing provides specifications for four distinct material types used in bridge embankment construction: slope protection, embankment material (granular, rock or soil), granular/cohesive pile core, and structure granular backfill. The plan includes both a plan view and cross-sectional view (Section A-A) showing the arrangement of these materials and includes specifications for 4" perforated underdrain pipes and 8" perforated underdrain pipes for headwall construction.

The drawing specifies that slope protection is required as noted on bridge plans, granular/rock embankment as noted on roadway plans, and structure granular backfill is required at all times. A granular pile core or cohesive pile core is required with granular/rock embankment and with drilled shafts and pre-drilled piles. The drawing is to be used in conjunction with current standard drawing RGX-105 and RDP-010, indicating this is part of a larger set of construction specifications. The drawing shows an end-bent at a zero degree skew, though the notes indicate these same principles would apply to varied structures.