Birkenhead North TMD is a traction maintenance depot located opposite Birkenhead North railway station for servicing Merseyrail Class 507 and 508 multiple units and rolling stock. The depot code is BD.
In 1985 and 1986, in order to celebrate "100 years of Mersey Railways," the depot held a series of open days. On these occasions a number of mainline locomotives were on display at the depot. Among the locomotives included were Class 40 locomotive number 40122 D200 and Class 50 locomotive number 50007 Sir Edward Elgar (formerly Hercules).
The depot is home to Class 507 and Class 508 750v DC third rail electric multiple units. Until the introduction of these units, the depot housed Class 503 equipment.
Departmental equipment for Sandite duties has in the past included Class 73/0 and 73/9, Class 97/7 and Class 936 traction.
Four Class 03 diesel shunters were also employed at the depot on dock shunting duties. The shunters were numbered 03073, 03162, 03170 and 03189. Since the Birkenhead Dock Branch fell into disuse, all four of these locomotives have been sold to railway heritage preservation groups.