Mount Alexander Road originally ran north from Flemington Road in Parkville to Pascoe Vale Road at Moonee Ponds Junction. The passing of the
Country Roads Act 1958 (itself an evolution from the original
Highways and Vehicles Act 1924) provided for the declaration of State Highways and Main Roads, roads partially financed by the state government through the
Country Roads Board (later
VicRoads). A northern extension to the existing declaration of
Mount Alexander Road, from
Moonee Ponds Junction to the intersection with Bendigo Road (today Keilor Road) and Sunbury Road (today Bulla Road) in northern
Essendon, was declared a Main Road on 7 September 1960. Mount Alexander Road linked Bendigo Road (and the
Calder Highway beyond) to central Melbourne, and was signed as National Route 79 between Essendon and Parkville in 1955; once the
Tullamarine Freeway extension to Parkville opened in 1970 and National Route 79 was re-routed onto the new freeway, the old route was replaced with Alternative National Route 79, until it was removed in 1989. Bulla Road was allocated Metro Route 37, extended north from Lincoln Road to Tullamarine Freeway, when the
Tullamarine Freeway extension opened in 1970, replacing former Metropolitan Route 40. The passing of the
Road Management Act 2004 granted the responsibility of overall management and development of Victoria's major arterial roads to VicRoads: in 2004, VicRoads re-declared Mount Alexander Road (Arterial #5824) from Flemington Road in Parkville to the ramps of the "Western Link Tollway" (
CityLink's Western link) in
Strathmore, south of
Essendon Airport; this declaration formally includes today's
Bulla Road, but signposts along this section have kept its original name. ==Major intersections==