March TMD was a railway Traction Maintenance Depot situated near March, England. March was a steam locomotive shed under British Railways with the depot code 31B; the depot code of the diesel depot under BR was MR. The nearest railway station is March, and the depot was located close to the Whitemoor Marshalling Yard. Despite its rural location, in the 1970s it accommodated a similar number of locomotives to the comparatively larger Toton TMD and served as the main diesel depot for East Anglia.