Snowy Mountains Highway

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Snowy Mountains Highway

New South Wales
Snowy Mountains Highway highlighted in green
General information
TypeHighway
Length287 km (178 mi)[1]
333 km (207 mi) including intervening roadway.[1]
GazettedAugust 1928 (as Main Road 4)[2]
Route number(s) B72 (2013–present)
Former
route number		 National Route 18 (1955–2013)
Major junctions
Eastern section
East end Princes Highway
Stony Creek, New South Wales
 Mogilla Road
West end Monaro Highway
Steeple Flat, New South Wales
Western section
East end Monaro Highway
Cooma, New South Wales
 
West end Hume Highway
Mount Adrah, New South Wales
Location(s)
Major settlementsAdelong, Tumut Adaminaby, Cooma
Restrictions
GeneralWithin Kosciuszko National Park, it is recommended that two-wheel drive vehicles carry snow chains during winter.[3]
Highway system

Snowy Mountains Highway is a 333-kilometre-long (207 mi)[1] state highway located in New South Wales, Australia. Its two sections connect the New South Wales South Coast to the Monaro region, and the Monaro to the South West Slopes via the Snowy Mountains. The higher altitude regions of this road are subject to snow over the winter months, and the road also provides access to many parts of the Snowy Mountains Scheme. The highway bears the B72 shield along its entire length.

The highway originally bore the name Monaro Highway until 1958, when it received its current name. It originally ran from Tathra to Wagga Wagga but has been shortened to run from Princes Highway to Hume Highway instead. Part of the roadway was reallocated to what is now known as Monaro Highway in 1955. Reservoirs created as a result of dams built in the 1950s and 1960s as part of the Snowy Mountains Scheme required the creation of major realignments to avoid submerged areas. Previous to New South Wales' conversion to alphanumeric route markers, it was signed as National Route 18.

Route description[edit]

Distinctive yellow lane marking and tall red reflector posts used in high altitude sections of the highway. This image was taken within a forested section near Yarrangobilly Caves.
Looking east along the Snowy Mountains Highway (as Tumut Street), in Adelong.
Snowy Mountains Highway passing through Kiandra
Westbound on the Hume Highway, at the western terminus of the Snowy Mountains Highway.

Snowy Mountains Highway begins at a T-intersection with Princes Highway at Stony Creek, north of Bega. It heads roughly west through hilly terrain, the terrain smooths eventually and the road crosses the Bemboka River at Morans Crossing. A short distance further the road passes through Bemboka, taking on the name Loftus Street within the urban area. West of Bemboka the road follows the southern bank of the Bemboka River, before crossing the Nunnock River near its confluence with the Bemboka River at the base of the Great Dividing Range escarpment. Up until this point the immediate landscape surrounding the road has so far consisted of farmland. From the base of the range the road enters South East Forest National Park and follows a steep and winding alignment up the range from about 250 m (820 ft) above sea level, to over 1,100 m (3,600 ft). At the top of the range the road then enters Glenbog State Forest before once again traversing farmland for a short distance until it meets the Monaro Highway at Steeple Flat, south of Nimmitabel. This intersection is a T-intersection, through traffic continues north along Monaro Highway, while traffic heading to the south from either direction must turn. To reach the western section of Snowy Mountains Highway, Monaro Highway must be taken north towards Cooma at this point.[4]

The western section begins at the Bombala and Sharp Street roundabout in Cooma. The highway takes on the name Sharp Street from this intersection as it heads west within Cooma urban area. Upon leaving Cooma, the road heads west via farmland to the village of Pine Valley. Here the road meets a T-intersection, with through traffic taking Kosciuszko Road southwest towards Jindabyne. The highway turns to continue on its westerly heading. The roadway then makes its way through undulating terrain for some distance before it passes through Adaminaby, and on into Kosciuszko National Park. The park boundary is marked by a sign, there are no park entry gates on the highway, and park entry fees are not payable. The road winds through mountainous terrain as it climbs towards the abandoned mining settlement of Kiandra, situated at an altitude of around 1,400 m (4,600 ft). The landscape becomes open grassland at this point and remains relatively flat as the road continues relatively gently up an alpine valley created by the Eucumbene River and its numerous tributaries. At the top of the valley the road reaches its highest point a little below 1,500 m (4,900 ft). The road then descends into part of a similar valley created by the Murrumbidgee River as it passes by the access roads for Yarrangobilly Caves. The highway then veers northwest back into forested terrain and continues along the same rough heading through hilly terrain for some distance before a mountainous descent from 900 to 400 m (3,000 to 1,300 ft), near the town of Talbingo which is located a few kilometres west of the highway. Continuing on, the roadway passes by Jounama Dam and then roughly parallels the eastern side of Blowering Reservoir (created by Blowering Dam further downstream). It then leaves the National Park descending into farmland on the Tumut Plains, roughly 300 m (980 ft) above sea level.[4][5]

From here the highway then crosses the Tumut River and heads into the town of Tumut itself, taking on the names Blowering Street, Fitzroy Street, and Adelong Street within the urban area. West of Tumut the road crosses a large valley created by Gilmore Creek and Deep Creek, before a small climb through Adelong Gap into the town of Adelong, taking on the names Tumut Street, Inglis Street, and Lynch Street within the urban area. Beyond Adelong, the road continues northeast through undulating terrain before crossing Hillas Creek and then following it for the last few kilometres until the highway's western terminus at Hume Highway, located roughly halfway between Gundagai and Tarcutta.

High altitude sections subject to snow and ice have yellow lane markings and red reflector posts (which are sometimes double or triple height); in contrast to the white lines and posts generally seen elsewhere around Australia. It is recommended that snow chains are carried for all two-wheel drive vehicles travelling on this highway within Kosciuszko National Park during the winter months.[6][7]

History[edit]

Snowy Mountains highway near Kiandra

The passing of the Main Roads Act of 1924[8] 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 (later the Department of Main Roads, and eventually Transport for NSW). Monaro Highway was declared (as Main Road No. 4) on 8 August 1928, heading northwest from Tathra, via Bega, Nimmitabel, Cooma, Adaminaby, Tumut, Adelong, and Lower Tarcutta to Wagga Wagga.[2] With the passing of the Main Roads (Amendment) Act of 1929[9] to provide for additional declarations of State Highways and Trunk Roads, this was amended to State Highway 4 on 8 April 1929.[10][11][12]

The Department of Main Roads, which had succeeded the MRB in the previous year, proclaimed the portion of the highway between Wagga Wagga and Hume Highway at Lower Tarcutta to be part of Sturt Highway on 8 August 1933; the highway's western end was truncated at its own junction with Hume Highway near Hillas Creek instead.[13][14]

When the Snowy Mountains Scheme commenced in 1949, the road began to increase in importance. Roadworks to increase the standard of the road were undertaken, and were often paid for by the Snowy Mountains Hydro-Electric Authority.[12] In 1955, it was decided that what was still then known as Monaro Highway would be renamed as Snowy Mountains Highway.[15] This was done as only a relatively small portion of the road was actually within the Monaro region. The section of road between Cooma and Nimmitabel was also reclassified as part of State Highway 19, which at that time ran from Canberra, to the Victorian border west of Delegate. The various roads classified as State Highway 19, were then named as Monaro Highway in 1958. In contrast with Snowy Mountains Highway, the entire length of that highway is within the Monaro region.[12][16][17]

Over the years further changes to the alignment have occurred. The eastern section of the highway no longer runs west to Nimmitabel, instead meeting Monaro Highway to the south; the old section has been renamed as Old Bega Road. The western section has also seen some major changes with the highway being realigned to avoid Lake Eucumbene near Adaminaby due to the construction of Eucumbene Dam in the 1950s.[18] Similarly realignment was required to avoid the Jounama Pondage and Blowering Reservoir near Talbingo due to the construction of Jounama and Blowering Dams in the 1960s.[19]

The passing of the Roads Act of 1993[20] through the Parliament of New South Wales updated road classifications and the way they could be declared within New South Wales. Under this act, the eastern end of the highway was truncated to the intersection with Princes Highway at Stony Creek north of Bega on 24 May 1996;[21] the former section from Bega to Tathra was renamed as Tathra Road.[5][12] Snowy Mountains Highway today retains its declaration as Highway 4, from the intersection with Princes Highway at Stony Creek to the intersection with Monaro Highway south of Nimmitabel, and from Cooma to the intersection with Hume Highway near Hillas Creek in Mount Adrah.[4]

Route markers[edit]

Diagram depicting National Route 18 shield
Diagram depicting B72 shield
Former National Route 18 shield (left) and current B72 route marker (right)

Route markers were first introduced in Australia in late 1954. Over the following decades they were progressively rolled out to the various highways around the nation, under a nationwide route numbering scheme, [22] with the highway allocated National Route 18 across its entire length in 1955. In addition to this, the section of Monaro Highway between Cooma and Steeple Flat was also signed as National Route 18 in addition to the National Route 23 route marker used along the remainder of its length within NSW; this kind of arrangement is known as a duplex or concurrency. This allowed one route to cover the highway from end to end.[23] With the conversion to the newer alphanumeric system in 2013, this was replaced with route B72.[24] The concurrency along Monaro Highway remains intact with B72 used in addition to B23 between Cooma and Steeple Flat.[7]

Junction list[edit]

LGALocation[5]km[1]miDestinationsNotes
Bega ValleyStony Creek00.0 Princes Highway (A1) – Batemans Bay, BegaEastern terminus of southeastern section of highway and route B72
Bemboka River2012Bridge over the river (Bridge name unknown)
Bega ValleyBemboka2616Mogilla Road – CandeloRoad also listed in schedule as "Wolumla – Bemboka Road"
4729Old Bega Road – NimmitabelFormer highway alignment
Snowy MonaroSteeple Flat5937 Monaro Highway (B23/B72 north, B23 south) – Cooma, BombalaWestern terminus of southeastern section of highway, route B72 continues north along Monaro Highway
T-intersection
Gap in highway
Snowy MonaroCooma10565 Bombala Street (B23/B72 south) – Bega, Bombala
Sharp Street (B23 east) – Michelago, Canberra
Bombala Street (north) – Cooma		Eastern terminus of northwestern section of highway, route B72 continues south along Monaro Highway
Roundabout
Pine Valley11270Kosciuszko Road – JindabyneWestbound traffic turns northwest, eastbound traffic turns northeast
Dargans Flat13282Middlingbank Road – Berridale
Eucumbene River191119Bridge over the river (Bridge name unknown)
Eucumbene River202126Bridge over the river (Bridge name unknown)
Snowy ValleysYarrangobilly209130Yarrangobilly Caves Exit RoadOne way road – Exit only
215134Yarrangobilly Caves Entry Road  – Yarrangobilly CavesOne way road – Entry only
Tumut River277172Bridge over the river (Bridge name unknown)
Snowy ValleysTumut286178 Wee Jasper Road – Wee Jasper, Lacmalac, Tumut Airport
287178Gocup Road (north) – Gundagai
Capper Street (south) – Tumut
Gilmore294183Batlow Road – Batlow, Tumbarumba
Adelong305190Tumut Street, to Wondalga Road – WondalgaWestbound traffic turns west, eastbound traffic turns north
306190Quartz Street, to Grahamstown Road – Grahamstown, TumblongWestbound traffic turns south, eastbound traffic turns east
GundagaiMundarlo–Mount Adrah boundary333207 Hume Highway (M31) – Gundagai, Albury, Wagga WaggaPartial Y-interchange, no northwestern exit northbound
Western terminus of northwestern section of highway and route B72
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
Total length without including gap in the highway roadway is approximately 287 km (178 mi).
Listing includes: Termini, declared roads, former alignments, and intersections where a turn is required to remain on the highway, and minor roads at these intersections.

See also[edit]

References[edit]

  1. ^ a b c d Google (13 August 2022). "Snowy Mountains Highway" (Map). Google Maps. Google. Retrieved 13 August 2022.
  2. ^ a b "Main Roads Act, 1924-1927". Government Gazette of the State of New South Wales. No. 110. National Library of Australia. 17 August 1928. pp. 3814–20. Archived from the original on 3 August 2022. Retrieved 1 August 2022.
  3. ^ "Driving in the snow". NSW Government – Office of Environment and Heritage. 19 July 2011. Retrieved 27 July 2013.
  4. ^ a b c Transport for NSW (August 2022). "Schedule of Classified Roads and Unclassified Regional Roads" (PDF). Government of New South Wales. Retrieved 1 August 2022.
  5. ^ a b c SIX Maps (Map). Cartography by NSW Department of Finance and Services, Sinclair Knight Merz, and Astrium GEO-Information Services. NSW Government – Land and Property Information. Retrieved 29 June 2013.
  6. ^ "Snow driving". NSW Government – Transport for New South Wales. 4 July 2013. Retrieved 28 July 2013.
  7. ^ a b "NSW Route B72". Photos of route B72 – Bega to Tumblong. Ozroads. 27 July 2013. Retrieved 28 July 2013.[self-published source]
  8. ^ State of New South Wales, An Act to provide for the better construction, maintenance, and financing of main roads; to provide for developmental roads; to constitute a Main Roads Board Archived 11 August 2022 at the Wayback Machine 10 November 1924
  9. ^ State of New South Wales, An Act to amend the Main Roads Act, 1924-1927; to confer certain further powers upon the Main Roads Board; to amend the Local Government Act, 1919, and certain other Acts; to validate certain payments and other matters; and for purposes connected therewith. Archived 12 August 2022 at the Wayback Machine 8 April 1929
  10. ^ Kass, Terry (February 2006). "RTA Thematic History" (PDF) (2nd ed.). Roads & Traffic Authority. p. 37. Retrieved 23 July 2013.
  11. ^ "The New Roads Policy". The Canberra Times. 2 October 1928. p. 2. Retrieved 23 July 2013.
  12. ^ a b c d "Snowy Mountains Highway" (PDF). Main Roads. NSW Department of Main Roads. December 1955. pp. 44, 51. Archived from the original (PDF) on 28 March 2019. Retrieved 22 December 2022.
  13. ^ "Main Roads Act, 1924-1931". Government Gazette of the State of New South Wales. No. 131. National Library of Australia. 25 August 1933. p. 3093. Archived from the original on 26 August 2022. Retrieved 26 August 2022.
  14. ^ Kass, Terry (February 2006). "RTA Thematic History" (PDF) (2nd ed.). Roads & Traffic Authority. p. 84. Retrieved 23 July 2013.
  15. ^ Snowy Mountains Highway Main Roads September 1955 page 4
  16. ^ "Monaro Highway" (PDF). Main Roads. NSW Department of Main Roads. December 1959. p. 49. Retrieved 25 July 2013.
  17. ^ "Monaro Highway New Name For Cooma Road". The Canberra Times. 21 October 1958. p. 3. Retrieved 25 July 2013.
  18. ^ "Adaminaby Road Closures". The Canberra Times. 19 July 1957. p. 2. Retrieved 27 July 2013.
  19. ^ "Road conditions for Christmas tourists". The Canberra Times. 20 December 1966. p. 28. Retrieved 27 July 2013.
  20. ^ State of New South Wales, An Act to make provision with respect to the roads of New South Wales; to repeal the State Roads Act 1986, the Crown and Other Roads Act 1990 and certain other enactments; and for other purposes. Archived 11 August 2022 at the Wayback Machine 10 November 1924
  21. ^ "Roads Act". Government Gazette of the State of New South Wales. No. 63. National Library of Australia. 24 May 1996. p. 2684. Archived from the original on 22 December 2022. Retrieved 22 December 2022.
  22. ^ "It will be 'Highway 31'". The Argus. Melbourne. 13 August 1954. p. 5. Retrieved 28 July 2013.
  23. ^ "National Route 18". Photos of the Snowy Mountains Highway. Ozroads. Retrieved 27 July 2013.[self-published source]
  24. ^ "Road number and name changes in NSW" (PDF). Roads & Maritime Services. Government of New South Wales. 2012. Archived from the original (PDF) on 25 March 2016. Retrieved 7 November 2016.
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