Highway bridge bridge deck drainage facility

The utility model discloses a highway bridge bridge deck drainage facility, it relates to highway bridge technical field, and it includes downcomer, water collector, cavity, boss, elasticity post, support, the component of weighing, gland, liquid level detection ware, horn, filter screen sum channel, its structural design is equitable, and novel structure is unique, easy operation, and convenient to use is equipped with elasticity post, downcomer and gland, can adjust the gland decline displaoement according to the pressure size of water, and then the size of control flow, has avoided external other debris to get into, and has provided the filter screen, and it is better to keep apart the debris effect, also provides the component of weighing, avoids rivers too big, results in the device to damage, and the horn can also carry out the alarm, and the maintenance personal of being convenient for finds the position fast.