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 for bridge construction projects. 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 placement and configuration of these materials, along with 4" perforated underdrain pipes and 8" perforated underdrain pipes for headwall construction.

The drawing specifies several key technical requirements including: slope protection requirements as noted on bridge plans, granular or rock embankment requirements as noted on roadway plans, granular pile core requirements with granular or rock embankment, and cohesive pile core requirements with drilled shafts and pre-drilled piles. Structure granular backfill is required at all times according to the notes. The drawing is designed to be used in conjunction with current standard drawing RGX-105 and RDP-010, and while it shows a zero-degree skew for simplicity, the same principles would apply to varied structures.