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 technical drawing provides specifications for four distinct material applications in bridge construction: slope protection, embankment materials (granular, rock, or soil), granular/cohesive pile core, and structure granular backfill. The drawing includes both a plan view and cross-sectional view (Section A-A) showing the placement of these materials, along with 8" perforated underdrain pipes for headwall construction.

The drawing specifies key technical requirements including that slope protection is required as noted on bridge plans, granular/rock embankment is required per roadway plans, and granular pile core is required with granular/rock embankment or cohesive pile core with drilled shafts and pre-drilled piles. Structure granular backfill is required at all times. The drawing references current standard drawing RGX-105 for defining material limits and notes that while a zero-degree skew is shown in the example, the same principles apply to varied structures. For headwall construction specifications, the drawing refers to standard drawing RDP-010.