We are often asked about our bridge-mounted dry fire hydrant designs. All of these installations first begin with an assessment of the bridge and the water flow underneath. Lift is the number one factor when we look at expected performance. When lift approaches 15-ft we begin to see a marked reduction in a pump's rated performance...so we tell folks to go and draft from the bridge using 6-inch hard suction hose and see what kind of flow is achieved. If that flow meets your needs, then a bridge-mounted dry fire hydrant will also work.
Watch our video clip for more information about the assessment process for bridge-mount installations.