Last updated July 2026
Silverstream is a small river flowing close to Mosgiel in Otago, New Zealand. It rises in the Silverpeaks hills north of Dunedin on the southern slope of Silver Peak and flows south through a steep forested valley that widens at Whare Flat before turning west across the Taieri Plains. The stream passes the northern edge of Mosgiel and joins the Taieri River about 2 kilometres north of Allanton. Its Māori name is Whakaehu. The waterway supports walking tracks, offers views of surrounding hills and plains, and carries a history of 19th-century water engineering.
Practical Information
| Location | Near Mosgiel, Dunedin district, Otago |
| Length | Approximately 30 km |
| Average discharge | 0.3 cumecs |
| Maximum recorded discharge | 130 cumecs |
| Māori name | Whakaehu |
| Water race construction | 1877–1881 |
| Nearest city | Dunedin (about 20 minutes drive) |
| Key access road | Silverstream Valley Road |
About Silverstream
Silverstream rises in the rugged Silverpeaks hills and flows through a mix of steep forested valleys and flatter plains country. The upstream catchment features temperate forest and scrub, while lower reaches pass agricultural land before reaching the Taieri River. The stream forms part of the broader Taieri catchment and has been modified over time for flood protection.
The river maintains generally low flows below one cumec under normal conditions yet can rise rapidly after heavy rain. Floodbanks and other engineering works help manage these events near Mosgiel. The surrounding landscape includes Saddle Hill and Three Mile Hill, adding to the scenic and ecological setting.
Walking routes follow or cross the valley, with several tracks suited to experienced trampers. Birdlife is abundant in the bush areas, and the stream supports native fish species typical of Otago waterways. Its proximity to Mosgiel makes it a convenient destination for day trips from Dunedin.
History of the Silver Stream Water Race
The Silver Stream Water Race was constructed between 1877 and 1881 to supply water to Dunedin. The system comprised nearly 30 kilometres of open races, sluices, tunnels and weirs beginning at a weir high on the stream. It traversed the sides of Swampy Summit and Flagstaff before reaching a reservoir in the Kaikorai Valley.
Subsidence problems led to sections being piped and a pump installed in 1920. The race was eventually abandoned in the 1960s. Remnants of the historic infrastructure remain visible along some walking routes in the area.
Walking and Hiking
Chalkies Track offers a challenging loop starting from Silverstream Valley Road. The route crosses Silverstream and Leishmans Creek, climbs steeply through kanuka and broadleaf forest with podocarps, then reaches the summit of Powder Hill at 525 metres for panoramic views across the Silverpeaks and Taieri Plains.
The track passes quartz limestone cliffs and descends through manuka, flax and tussock. Walkers should expect wet feet at unbridged crossings and carry appropriate gear. The full loop is approximately 6 km and takes 2.5 to 3 hours. A formal car park is located at the end of Silverstream Valley Road, about 20 minutes from central Dunedin.
Additional shorter walks exist along the lower reaches near Mosgiel, providing easier access to the stream banks and surrounding farmland edges.
Flood Management and Environment
Otago Regional Council maintains flood protection works along Silverstream, including raised banks and a spillway near the Taieri confluence. The spillway activates at higher flows to reduce risk to Mosgiel and surrounding areas. Routine inspections and vegetation control support these measures.
The stream supports diverse habitats from tussock grasslands to wetlands. Native birds such as kererū, tūī, bellbird and fantail are commonly seen in the bush sections. Water quality is monitored at sites including Three Mile Hill Road.
Cultural Significance
The stream is known to Kāi Tahu as Whakaehu. This name is reflected locally in the Mosgiel swimming pool complex, Te Puna o Whakaehu. Silverstream School and Silverstream Drive also carry the name, linking the waterway to community identity.
What Visitors Often Say
Walkers describe Chalkies Track as steep and rewarding, with excellent views from Powder Hill and good birdlife along the way. Many note the need for sturdy footwear and caution at stream crossings, especially after rain.
Locals and visitors appreciate the peaceful setting close to Mosgiel and the contrast between forested valleys and open plains. Some mention the historic water race remnants as an interesting feature on longer walks.
Where to Learn More
Wikipedia – Silver Stream: Overview of geography, history and physical characteristics.
Department of Conservation – Chalkies Track: Detailed track description, safety notes and access information.
LAWA – Silverstream monitoring: Current water quality and flow data for the stream.
Frequently Asked Questions
What is the Māori name for Silverstream?
Whakaehu.
How long is Silverstream?
Approximately 30 kilometres from its source in the Silverpeaks to the Taieri River.
Is Chalkies Track suitable for beginners?
No, it is a steep and challenging tramp best suited to experienced walkers with appropriate footwear and river-crossing skills.
Can you swim in Silverstream?
Swimming is not a primary activity on the stream itself. Check current water quality on LAWA before any water-based recreation and follow local advisories.
Are there fishing opportunities?
The nearby Taieri River offers fishing; Silverstream itself is a small tributary with limited angling focus. Follow Fish & Game regulations.
When was the Silver Stream Water Race built?
Construction took place between 1877 and 1881; it was abandoned in the 1960s.
How do I get to the start of Chalkies Track?
Drive to the end of Silverstream Valley Road, about 20 minutes from Dunedin. A formal car park is available there.
Is the area wheelchair accessible?
Most tracks, including Chalkies Track, involve steep sections and stream crossings and are not suitable for wheelchairs.
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