US-421 Over Ohio River in Madison and Milton: Trimble County, Kentucky and Jefferson County, Indiana, United States
Metal Cantilever 22 Panel Rivet-Connected Pratt Through Truss, Fixed and Approach Spans: Metal 7 Panel Rivet-Connected Pratt Deck Truss, Fixed
Length: 3,184 ft.
Main Span: 600 ft.
Roadway: 20 ft.
Main Spans: 4
By: Mount Vernon Bridge Company of Mount Vernon, Ohio
and J. G. White Engineering Company
Special Bridge Conditions Legend: R - Former location of relocated bridge.
! - At risk for demolition or destruction.
X - Confirmed demolished or
- Dismantled and/or in storage.
Severe loss of historic integrity due to alteration.