# Adelaide–Mannum Road

Adelaide–Mannum Road is a road that runs through the northern Adelaide Hills between the South Australian capital, Adelaide and Mannum on the Murray River. It is designated route A10 in the metropolitan area and B10 in rural areas, and is 79 kilometres in length. This name covers many consecutive streets and is not widely known to most drivers, as the entire allocation is still best known as by the names of its constituent parts: Northcote Terrace, North East Road, Torrens Valley Road, Randell Road and Adelaide Road. This article will deal with the entire length of the corridor for sake of completion, as well to avoid confusion between declarations.

## Route

Northcote Terrace starts at the intersection of Robe Terrace and Park Road/Mann Road in North Adelaide, about 500 metres away from the beginning of Adelaide's O-Bahn Busway, changes name to North East Road a kilometre later to become a major arterial road that travels, as its name suggests, through the north-eastern suburbs of Adelaide. It continues through Adelaide's north-east growth corridor, through to the suburban region of Houghton, where it meets in an intersection with Lower North East Road, leading back to Adelaide's more easterly suburbs. Just beyond Millbrook Reservoir, the road changes name to Torrens Valley Road and continues east, then just east of Birdwood turns off to become Randell Road, continuing east until it reaches the western edges of Mannum, where it changes name for the final time to Adelaide Road.

## History

The road was first built in the 1840s to facilitate the growth and development of the towns and settlements along its length. It played a role in the gold rush of the 1860s. Today, the area boasts many tourist and historical sites, wineries and natural attractions, although only a few towns exist as more than historical sites.

## Major intersections

| LGA | Location | km | mi | Destinations | Notes |
| Walkerville | North Adelaide–Medindie–Gilberton tripoint | 0.0 | 0.0 | Mann Road (n/bound)/Park Road (s/bound) (R1 south) – Adelaide | Western terminus of road and route A10 |
| Walkerville | North Adelaide–Medindie–Gilberton tripoint | 0.0 | 0.0 | Robe Terrace (R1 west) – Adelaide, Port Adelaide | No right turn southbound into Robe Terrace |
| Walkerville | North Adelaide–Medindie–Gilberton tripoint | 0.0 | 0.0 | Walkerville Terrace (northeast) – Gilberton | |
| Walkerville–Port Adelaide Enfield border | Gilberton–Collinswood border | 1.0 | 0.62 | Nottage Terrace (west) – Prospect Stephen Terrace (southeast) – St Peters | Name transition: Northcote Terrace (south), North East Road (northeast) |
| Walkerville–Port Adelaide Enfield border | Vale Park–Manningham border | 2.6 | 1.6 | Taunton Road (A17 northwest) – Northfield Ascot Avenue (A17 southeast) – Glen Osmond | |
| Port Adelaide Enfield | Greenacres–Hampstead Gardens–Klemzig tripoint | 4.5 | 2.8 | Muller Road – Prospect, Kilkenny | |
| Tea Tree Gully | Modbury–Holden Hill–Gilles Plains–Valley View quadripoint | 8.8 | 5.5 | Grand Junction Road (A16) – Port Adelaide, Gepps Cross, Houghton | |
| Tea Tree Gully | Modbury | 10.2 | 6.3 | McIntyre Road (A18) – Parafield, Paralowie | |
| Tea Tree Gully | Ridgehaven–St Agnes–Tea Tree Gully tripoint | 14.3 | 8.9 | Hancock Road (A11) – Golden Grove, Salisbury Heights | |
| Adelaide Hills | Houghton | 19.3 | 12.0 | Lower North East Road (A16) – Port Adelaide, Gepps Cross | Route transition: A10 west, B10 east |
| Adelaide Hills | Millbrook–Chain of Ponds border | 27.1 | 16.8 | Tippett Road (B31 north) – Campbelltown, Castambul | Concurrency of routes B10 and B31 |
| Adelaide Hills | Chain of Ponds | 27.5 | 17.1 | South Para Road (B31 south) – Williamstown, Lyndoch | Concurrency of routes B10 and B31 |
| Adelaide Hills | Chain of Ponds–Cudlee Creek–Gumeracha tripoint | 29.9 | 18.6 | Gorge Road – Cudlee Creek | Name transition: North East Road (west), Torrens Valley Road (east) |
| Adelaide Hills | Birdwood | 40.0 | 24.9 | Warren Road (B34 north) – Mount Crawford, Williamstown | Concurrency of routes B10 and B34 |
| Adelaide Hills | Birdwood | 41.8 | 26.0 | Onkaparinga Valley Road (B34 south) – Mount Torrens, Bridgewater | Concurrency of routes B10 and B34 |
| Adelaide Hills–Barossa border | Birdwood–Mount Pleasant border | 46.2 | 28.7 | Torrens Valley Road (B10 northeast) – Mount Pleasant, Nurioopta | Name transition: Torrens Valley Road (southwest), Randell Road (east) Route transition: B10 (southwest), unallocated (east) |
| Mid Murray | Tungkillo | 51.6 | 32.1 | Tungkillo Road (B35 north) – Mount Pleasant, Mount Crawford | Route transition: unallocated (west), B35 (east) |
| Mid Murray | Palmer | 63.1 | 39.2 | Reedy Creek Road (B35 south) – Murray Bridge | Route transition: B35 (south), B36 (east) |
| Mid Murray | Mannum | 75.7 | 47.0 | Ridley Road (north) – Angas Valley, Sedan Mannum Road (B36 south) – Murray Bridge | Name transition: Randell Road (west), Adelaide Road (east) Route transition: B36 (south), unallocated (east) |
| Mid Murray | Mannum | 78.7 | 48.9 | Randell Street – Mannum | Eastern terminus of road |
| Concurrency terminus Incomplete access Route transition ||||||