The coast of New South Wales, from the Queensland to the Victorian borders, is separated from the inland by an
escarpment, forming the eastern edge of the
Great Dividing Range, with few easy routes up this escarpment. To climb from the coast to the tablelands, Hume Highway uses the
Bargo Ramp, a geological feature which provides one of the few easy crossings of the escarpment. In the first twenty years of European settlement at Sydney (established 1788), exploration southwest of Sydney was slow. This area was heavily wooded at the time, especially the Bargo brush, which was regarded as almost impenetrable. In 1798 explorers (Wilson, Price, Hacking and Collins) reached the
Moss Vale and
Marulan districts, but this was not followed up. Any settlement would have to await the construction of an adequate access track, which would have been beyond the colony's resources at the time, and would have served little purpose as a source of supplies for Sydney, due to the time taken to reach Sydney. In 1804,
Charles Throsby penetrated through the Bargo brush to the country on the tablelands near Moss Vale and
Sutton Forest. On another expedition in 1818, he reached
Lake Bathurst and the
Goulburn Plains. Many of the early explorers would most likely have used Aboriginal guides, but they do not appear to have given them credit. After Charles Throsby's 1818 journey towards present day Goulburn, followed by
Hamilton Hume and
William Hovell's
overland journey from
Appin to
Port Phillip and return in 1824, development of the Southern Tablelands for agriculture was rapid. The present route of Hume Highway is much the same as that used by the pioneers. The route taken by Hume Highway to climb from the coast to the Southern Tablelands and across the Great Divide is situated between the parallel river gorge systems of the
Wollondilly and
Shoalhaven rivers. This country consists generally of a gently sloping plateau which is deeply dissected by the
Nepean River and its tributaries. The route of the highway, by using four high-level bridges to cross these gorges, avoids the Razorback Range, and has minimal
earthworks. The climb from the western side of the Nepean River at
Menangle up to
Mittagong is fairly sustained, a fact that is hard to appreciate at high speed on the modern freeway. The highway climbs non-stop over a distance of from the
Pheasants Nest Bridge over the Nepean River to
Yerrinbool, before dropping slightly before the final climb to reach the tablelands at
Aylmerton, a climb of over in .
Early road construction Governor
Lachlan Macquarie ordered the construction of a road, which became known as the
Great South Road (the basis of the northern end of Hume Highway) in 1819 from Picton to the Goulburn Plains and he travelled to Goulburn in 1820, but it is unlikely that even a primitive road was finished at that time. , 1914. The Great South Road was rebuilt and completely re-routed between
Yanderra and Goulburn by Surveyor-General
Thomas Mitchell in 1833. The
Main Roads Management Act of June 1858 declared the Great South Road, from near Sydney through Goulburn and
Gundagai to Albury, as one of the three main roads in the colony. However, its southern reaches were described as only a "scarcely formed bullock track" as late as 1858. The road was improved in the mid-1860s with some sections near Gundagai "
metalled" and all creeks bridged between Adelong Creek (approximately 10 kilometres south of Gundagai and now known as the village of Tumblong) and Albury. Mitchell's route in New South Wales, except for the current-day bypasses at Mittagong, Berrima and
Marulan (dual carriageways were completed in 1986), is still largely followed by today's highway. Mitchell intended to straighten the route north of Yanderra, but was not granted funding, although his proposed route through
Pheasants Nest has similarities to the freeway route opened in 1980. Mitchell's work on the Great South Road is best preserved at
Towrang Creek (10 kilometres north of Goulburn), where his stone arch culvert still stands, although it was superseded in 1965 by a concrete box culvert which in turn was superseded by the current route of the highway when it was duplicated in 1972. By contrast, in Victoria there was an early and major change to Mitchell's route. Mitchell's original route between Albury and Melbourne went through
Mitchellstown on the
Goulburn River and took a long detour to the west of
Mount Macedon. In March 1837
Charles Bonney blazed a new trail from
Mitchellstown through
Kilmore to Melbourne, a route that took a day and a half off the previous journey. The bulk of Bonney's track formed the Sydney Road for the next 139 years. and was especially surveyed in 1840.
Road classification In 1914, both the Victorian and NSW sections of the highway were declared main roads by their respective state road authorities. Within Victoria, the passing of the
Country Roads Act 1912 through the
Parliament of Victoria provided for the establishment of the
Country Roads Board and its ability to declare Main Roads, taking responsibility for the management, construction and care of the state's major roads from local municipalities.
(Main) Sydney Road was declared a Main Road over a period of months, from 7 September 1914 (
Baddaginnie through
Benalla to
Glenrowan), 16 November 1914 (through
Craigieburn,
Broadford and
Euroa), to 30 November 1914 (from Craigieburn through
Wallan and
Kimore to Broadford, from Broadford through
Seymour to Euroa, Euroa through
Violet Town to Baddaginne, Glenrowan through
Wangaratta to Springhurst, and finally Barnawartha through
Wodonga to the state border with New South Wales). The passing of the
Highways and Vehicles Act 1924 provided for the declaration of State Highways, roads two-thirds financed by the state government through the Country Roads Board.
North-Eastern Highway was declared a State Highway on 1 July 1925, cobbled from a collection of roads from Melbourne through Seymour, Benalla, Wangaratta and Wodonga to the Murray River (for a total of 161 miles), subsuming the original declaration of Main Sydney Road as a Main Road. Within New South Wales, the passing of the
Main Roads Act 1924 through the
Parliament of New South Wales provided for the declaration of Main Roads, roads partially funded by the State government through the
Main Roads Board. Main Road No. 2 was declared along Great South Road on 8 August 1928, heading southwest from the intersection with
Great Western Highway at
Ashfield, through
Bankstown,
Liverpool, Crossroads,
Narellan,
Picton,
Mittagong,
Goulburn,
Yass and
Gundagai to
Albury. to provide for additional declarations of State Highways and Trunk Roads, this was amended to State Highway 2 on 8 April 1929. The Great South Road through New South Wales, and North-Eastern Highway through Victoria, were renamed
Hume Highway in 1928, through the
Parliament of New South Wales updated road classifications and the way they could be declared within New South Wales. Under this act, Hume Highway today retains its declaration as Highway 2, from the intersection with Parramatta Road in Ashfield in Sydney, to the state border with Victoria. In Victoria, the passing of the
Road Management Act 2004 through the
Parliament of Victoria granted the responsibility of overall management and development of Victoria's major arterial roads to
VicRoads: VicRoads re-declared the road in 2013 as
Hume Freeway (Freeway #1550), beginning at the state border with New South Wales to the intersection with
Western and Metropolitan Ring Roads at
Thomastown. The route was allocated National Route 31 across its entire length in 1954. The
Whitlam government introduced the federal
National Roads Act 1974, where roads declared as a National Highway were still the responsibility of the states for road construction and maintenance, but were fully compensated by the Federal government for money spent on approved projects. and was consequently re-allocated National Highway 31. At the Sydney end, as the South-Western Freeway was extended during the 1990s, National Highway 31 was replaced with Metroad 5 from Prestons to Liverpool in the early 1990s, then by Metroad 7 through Liverpool, and State Route 31 from Liverpool to its terminus at Ashfield. At the Melbourne end, route M31 was diverted onto the Craigieburn bypass in 2005; the former alignment (now known as Sydney Road) was replaced with State Route 55. With both states' conversion to the newer alphanumeric system between the late 1990s and the early 2010s, its route number was updated to route M31 for the highway within Victoria in 1997, and eventually within New South Wales in 2013 (with the route between Berrima and Prestons also renamed Hume Motorway), with route A28 between Prestons and Liverpool, and route A22 from Liverpool to its terminus at Ashfield.
Upgrades New South Wales In March 1967 the last single lane bridge on the highway, that carried it over the
Bargo River and
Main Southern railway line at
Bargo, was replaced. Between February 2009 and March 2012, both carriageways were widened between Brooks Road and Narellan Road. This work was undertaken in three stages. The first stage, widening to four lanes each way between Brooks Road and St Andrews Road
St Andrews was completed in 2010. The second stage, widening to four lanes each way between St Andrews Road and Raby Road commenced in 2009 and was completed in mid-2011. The final stage, widening to three lanes each way between Raby Road and Narellan Road, commenced in September 2010 and was completed in March 2012. Construction of a pedestrian bridge over the highway to link
Claymore and
Woodbine was also completed. This section of the highway, opened as part of the two stages opened in October 1973 and December 1974, was originally designed for widening of the carriageways to three lanes. Work commenced in 2010 on a bypass of Holbrook. The bypass was opened to traffic on 7 August 2013 after being postponed due to wet weather. The opening of the bypass resulted in dual carriageway (much to freeway standard) over the full length of the highway for the first time.
Victoria In 2008,
VicRoads undertook a planning study for the upgrading of Hume Freeway by removal of direct access from adjoining properties and grade-separation of the intersections between
Kalkallo and
Beveridge. These intersections had the highest accident rate of the Hume Freeway in Victoria. The study, completed in March 2009, ensured council planning schemes were amended so as to reserve space for the upgrade, but no timetable had been set for the project. In addition a 4-level interchange between Hume Freeway and the proposed
Outer Metropolitan Ring Road is slated to start construction in the 2030s.
Timeline of duplication and bypass works Duplication works on the highway began in the 1960s and concluded in 2013. • 1962 –
Craigieburn 'Hume By-pass Road', a dual-carriageway bypass over the
North East railway line and Craigieburn Road, opened January 1962 at a cost of £388,000, • 1966 – 1.6 km of dual carriageway opened over Bendooley Hill between Mittagong and Berrima, superseded by Berrima bypass in 1989. • 1966/67 – Craigieburn to
Kalkallo, 4.4 miles of dual carriageways completed during the financial year. • 1966/67 – Tallarook, 1.4 miles completed south of Tallarook and 1.3 miles completed north of Tallarook during the financial year. • 1969/70 – Beveridge, Completion of 11 miles of dual carriageway during the financial year, including a deviation at Beveridge and continuation south to connect with existing dual carriageways north of Craigieburn. • 1970/71 – Tallarook bypass, 4.5 mile bypass of Tallarook opened during the financial year. • 1973 – Camden bypass stage 1, Macarthur Bridge across the Nepean River floodplain, opened. • 1973 – South Western Expressway first section (9.8 km) (later subsumed into Hume Highway), opened from Hume Highway in Cross Roads to Campbelltown Road in Raby, on 26 October. • 1974 – Camden bypass stage 2, new dual carriageway route from Narellan Road in Macarthur to Macarthur Bridge, opened. • 1974 – South Western Expressway second section (5.8 km) (also later subsumed into Hume Highway), opened from Campbelltown Road in Raby to Narellan Road in Macarthur, on 16 December. • 1976 – Kilmore bypass, new dual carriageway route from
Wallan to Broadford, opened 3 May 1976, by
Premier of Victoria Rupert Hamer. At that time it was the longest section of freeway ever opened at one time in Victoria (34 km) and was the 'single biggest construction project carried out by the
Country Roads Board since its inception in 1913'. • 1977 – new route of Hume Highway, built to freeway standard, opened from Yanderra to Aylmerton (13.5 km) on 24 May. • 1979 –
Violet Town to
Baddaginnie, 10 km of dual carriageways opened early 1979, at a cost of $5.1mil. • 1979 –
Avenel to Tubbs Hill (near
Longwood), 14.5 km duplication opened 19 December 1979, by Minister for Transport,
Rob Maclellan, at a cost of $6.5mil. • 1980 – 35 km deviation of Hume Highway bypassing the Razorback Range opened on 15 December from Narellan Road in Macarthur to Yanderra, connecting sections opened December 1974 and May 1977. • 1981 – Avenel bypass, 16 km north-east from
Goulburn Valley Highway interchange, opened 1 December 1981, by Minister for Transport, Robert Maclellan, at a cost of $25mil. • 1982 –
Seymour bypass, 9 km section, opened 14 December 1982, by Minister for Transport,
Steve Crabb, at a cost of $26mil. At this stage, although largely opened to traffic, a one kilometre section of south bound carriageway south of Seymour was still under construction. • 1984 –
Longwood section, 10 km from Oxenburys Road to Creighton Road, opened by Assistant Minister of Transport,
Jack Simpson, on 18 May 1984, at a cost of $10mil. The opening marked the halfway point for the duplication of the highway within Victoria, with the total length of dual carriageways at that point measuring 151 km. • 1985 – Barnawartha to
Wodonga duplication, from Hanson Road to Parkers Road. An initial 4 km of the 12.6 km duplicate carriageway was completed in 1985. • 1986 – Marulan bypass, 7.3 km section opened 27 November 1986. • 1987 –
Benalla bypass, 36.5 km section, opened March 1987, at a cost of $70mil. The bypass was at this time the longest stretch of highway duplication opened at once in Victoria, and extended from south of
Baddaginnie to Chivers Road, south of
Glenrowan. • 1989 – Berrima bypass, 15.5 km-long section, completed 22 March 1989, at a cost of $80ilm. • 1990 –
Euroa to Balmattum, 8 km duplication, opened to traffic in June 1990, at a cost of $16mil. • 1991 – 10 km duplication from Coppabella Road to Reedy Creek completed 17 December 1991. • 1992 – Goulburn bypass, 13 km section, completed 5 December 1992, at a cost of $84mil. • 1994 –
Wangaratta bypass, 20 km section, completed April 1994, at a cost of $80mil (eight months ahead of schedule and $30m under budget); this was the final section of Hume Highway within Victoria to be duplicated. • 1995 – Cullerin to Yass duplication, first 11 km section completed 14 September 1994, second 6 km section completed 3 May 1995, at a total cost of $59.1mil. • 1996 – Tarcutta Range deviation, 9.4 km section upgrade south of Tumblong completed 3 May 1996, at a cost of $52.6mil. • 2005 – Craigieburn bypass second section, between Cooper Street and Craigieburn, completed December 2005, completing the 17 km bypass, at a total cost of $305mil. • 2007 –
Albury–Wodonga bypass, 14.6 km section, completed 6 March 2007; the
NSW section comprised from
Ettamogah to the
Murray River through the city of Albury. The
Australian Government fully funded the $374 million NSW section of the project. The $150m Victorian section was largely funded by the federal government, with the $5.8m Bandiana Link funded by the State Government of Victoria. • 2009 – Southern Hume Highway duplication, Work began in October 2007 and the 65 km section (2 km shorter than the previous highway route) was progressively opened to traffic from mid 2009 and completed in December 2009. Completion of this section left only 21 km of the Hume Highway as single carriageway, through the towns of Tarcutta, Holbrook and Woomargama. , the final town on the highway bypassed • 2009 –
Coolac bypass, 12 km section, completed August 2009, funded by the Australian Government at a cost of $171mil. • 2011 –
Tarcutta bypass, 7 km section, completed 15 November 2011, funded by the Australian Government at a cost of $290mil.
Fixed speed camera locations In April 2007, 'point-to-point' fixed speed-camera sites were installed, in the median strip along the Craigieburn Bypass section and northward to
Broadford, in Victoria, at roughly 15–20 km intervals. These measure both instantaneous (flash photography) speed and its speciality in the point-to-point versions (between two or more sites and then the average speed is measured to the fixed speed limit, comparing how long it takes a vehicle to reach one point from another). There are five sites, with two cameras (radar version) at each, totalling ten altogether. In Sydney: next to Ashfield Primary School, near Culdees Road Burwood, Willee St Enfield, Stacey St Bankstown, Brennan St Yagoona, and Knight St Lansvale.
Exit numbering trial Between Prestons and Campbelltown, an exit numbering system was trialled from May 2016.
Former route allocations Hume Highway has many former route allocations including former National Route 31. Where and when the former route numbers were implemented are stated below.
Ashfield – Chullora: • National Route 31 • Metroad 5 • State Route 31 • A22
Chullora – Warwick Farm: • National Route 31 • State Route 31 • A22
Warwick Farm – Casula: • National Route 31 • National Highway 31 • Metroad 7 • unallocated: • A28
Casula – Prestons: • National Route 31 • National Highway 31 • Metroad 5 • Metroad 7 • unallocated: • A28
Prestons – Campbelltown: • National Route 31 • National Highway 31 • Metroad 5 • M31
Campbelltown – Ettamogah: • National Route 31 • National Highway 31 • M31
Ettamogah – NSW/VIC border: • National Route 31 • National Highway 31 • A31 (de facto) • M31
NSW/VIC border – Campbellfield: • National Route 31 • National Highway 31 • National Highway M31 • M31 ==Exits and major interchanges==