What is a Sign Bridge? A sign bridge is any structure that supports overhead guide signs independent of an overpass or flyover ramp. By Alex|2017-11-15T10:06:03-05:00May 22nd, 2016|Basic Road Terminology|0 Comments About the Author: Alex Cofounder of AARoads.com. Webmaster of both AARoads and Interstate-guide.com. Former cartographer for Mapsource, Inc. and Universal Map Group, LLC. Map specialist for GIS Cartography & Publishing Services. Leave A Comment Cancel replyComment
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