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 types used in bridge embankment construction: slope protection, embankment material (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 arrangement of these materials and includes 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. For pile foundations, either granular pile core or cohesive pile core is required with drilled shafts and pre-drilled piles. The drawing references current standard drawing RGX-105 for defining material limits and notes that while a zero-degree skew is shown, the same principles apply to varied structures. The drawing also references standard drawing RDP-010 for headwall construction details.