Policy For Replacing Metal Cross Drains And Timber Bridges And Addressing Erosion Control
DATE ADOPTED: 7-26-21
MINUTE BOOK: 44 PAGE-34
POLICY: To establish a policy for the replacement of roadway structures and bridges and address erosion control.
PROCEDURE: In the eventthe county engineer, or a person designated by the county engineer, determines a cross drain should be replaced, any metal cross drains under a paved road that are 72 inches or lessin diameter (or arch equivalent) shall be replaced with reinforced concrete pipe. Houston County Personnel will conduct a drainage area to determine the size of the pipe required to replace the existing cross drain pipe. Pipes greater than 36 inches in diameter shall be constructed with cast-in-place concrete headwalls, pre-cast headwalls, or rip rap protection. In the event the county engineer, or a person designated by the county engineer, determines a timber bridge should be replaced, any a timber bridge shall be replaced with pre-cast concrete bridges according to ALDOT standard specifications and drawings current as of the time of replacement. The replaced bridge shall be protected from erosion by paving a minimum of 20 feet on each end of the bridge if that portion of road is not already paved. Pavement widths shall match the width of the bridge.
Recommended by County Engineer