Bridge drainage wells serve the purpose of draining water, facilitating the rapid removal of surface water from the bridge deck to prevent rainwater from accumulating on the deck and seeping into the beams, which could affect the durability of the bridge.

Sex, during the design of the bridge, in addition to setting longitudinal and transverse slope drainage on the bridge deck, a certain number of overflow pipes need to be installed on the deck to form a complete

Good drainage system.