Poles on Bridges

Light poles on bridges are typically mounted on concrete brackets along the outside edges of the bridge behind the traffic rail. The BL standard sheet contains electrical and structural details for installing lighting on bridges. Light pole locations on bridges should be shown on the bridge plan sheets as well as on the lighting sheets to help ensure the brackets are constructed along with the bridge slab.
The BL standard recommends structural locations for poles placed on bridges. To reduce pole vibration, the pole should be placed within an eighth of a bridge span distance from the bent. The pole should also be placed at least 4 feet from the center of any bent and at least 3 feet from any deck drain. These factors should be considered along with illumination levels when laying out pole locations.