The drive to Thomson Dam from Erica: Victoria’s biggest water store and the road in
You have booked a couple of nights at Erica and you want a drive that fills a morning without much planning. The Thomson Dam is that drive. It sits about 40 minutes from the pub, out through Rawson, and it holds Melbourne’s largest single store of drinking water. The dam wall and lookout make an easy half-day, with a car park, a picnic table and a big view down the water. What it does not have is a cafe, a boat ramp or anywhere to swim, because every drop goes to Melbourne’s taps.
The drive to Thomson Dam from Erica
Getting there is simple. Head north out of Erica, and about 4 km up the road you reach Parkers Corner. Keep going straight ahead there, rather than turning right to Rawson, and stay on the sealed road until the bitumen ends at the dam wall. The whole trip is about 40 minutes from the pub. The main road was built when the dam was constructed, so it is made for normal cars, not just four-wheel drives.
There are three ways to see the dam, and they suit different drivers.
- The easy way in, straight on past Parkers Corner. This is the route for most people. A normal car handles it in the dry, and it brings you right out to the dam wall, where the car park and lookout are. It is also the one to take if you are towing or driving something big.
- The rough way in, from Walhalla. You can reach the dam from Walhalla on Walhalla Road, but it is narrow, winding and gravel in parts. Signs warn against caravans and heavier vehicles. Leave this one for confident drivers in a car that can handle dirt.
- The best view, out at Cast Iron Point. For the widest view over the northern arm of the water, keep going past the wall towards Aberfeldy. It is about 17 km of good unsealed road to the Cast Iron Point lookout. Worth it in dry weather, but not a wet-day drive.
| Route in | Distance | Surface | Best for |
|---|---|---|---|
| Straight on past Parkers Corner | About 40 min from Erica | Sealed for most of the way | Normal cars, families, an easy half-day |
| Direct from Walhalla (Walhalla Road) | Short but slow | Narrow, winding, gravel in parts | Confident drivers, no caravans or heavy vehicles |
| Out to Cast Iron Point lookout | About 17 km unsealed | Good dirt road, dry weather | The best view over the northern arm of the water |
Roads up here change with the weather and the season. Snow and ice are a real factor from June to September, so check Parks Victoria for closures and conditions before you set out, and turn back if a road looks worse than you expected.
What you’ll see at the Thomson Dam wall
The Thomson Reservoir is the biggest of Melbourne’s ten water storages. It holds about 1,068 billion litres, close to 60 per cent of the city’s total storage capacity, and it is one of the largest earth and rock-fill dams in the southern hemisphere. From the dam wall you look straight down a long sheet of water ringed by forest and hills.
At the wall there is a car park, a lookout and a picnic table or two. The Thomson Dam lookout is the main stop, and it is a good spot for photos when the water is high. There is a picnic area nearby if you have packed lunch.
Now the honest part. This is drinking water, so you cannot swim, fish or put a boat in the reservoir. There is no cafe, no shop and no fuel. Bring your own food, water and a warm layer, because there is nothing to buy once you leave Rawson. Treat it as a look-and-photograph stop, not a day by the water.
Making a day of it: Thomson Dam and Walhalla
The dam on its own is a half-day. Pair it with Walhalla and you have a full day out, and it is one of the better scenic drives in this part of Gippsland.
Walhalla is an old gold-mining town about 20 to 30 minutes from the dam, back through Rawson. It sits in a steep, green valley and still looks much as it did a century ago. The Walhalla Goldfields Railway runs open-air carriages along the Thomson River, which is an easy way to see the valley without driving the tight roads yourself.
A simple loop is the pub at Erica, then up to the dam, back down to Walhalla for a walk around town and the railway, then home to Erica for dinner. Give yourself the day. The roads are slow, and you will want time to stop.
Before you go: fuel, phone reception and conditions
- Fuel. There is no reliable fuel at Erica, Rawson or Walhalla. Fill up at Moe on the way in, or at Traralgon if you are coming from the south-east. Do not head up on a low tank.
- Phone reception. Reception is patchy to none once you leave the main towns. Download or screenshot your route before you go, and tell someone where you are headed.
- Road conditions. The unsealed roads can be slippery or closed after rain or snow. Check Parks Victoria for current closures, especially in winter, and drive to the conditions.
Frequently asked questions about visiting Thomson Dam
The dam wall is around two and a half to three hours from Melbourne by the sealed route through Moe, Erica and Rawson. That is close to 200 km by road. From Erica itself it is only about 40 minutes.
Yes. The sealed road north from Parkers Corner takes you out to the dam wall, where there is a car park and a lookout. A normal car is fine in dry weather. The rougher back roads from Walhalla suit high-clearance vehicles only.
The main route north from Parkers Corner is sealed for most of the way. The direct road in from Walhalla and the run out to Cast Iron Point are unsealed, narrow and best left for dry days. Conditions change, so check before you go.
Look at the wall and the view, take photos, and have a picnic. You cannot swim, boat or fish in the reservoir, since it is drinking water. Most people pair the dam with Walhalla to make a full day of it.
There is nothing at the dam, no cafe or shop. The closest sit-down meal is back at Erica or in Walhalla. The Erica Hotel kitchen runs Wednesday to Sunday, lunch and dinner.
Eat before you drive up, or after you come down
There is one thing worth sorting before you go, and it is the reason to plan the day rather than wing it. There is no food and no fuel past Moe, and none at the dam, so your one hot meal comes at either end of the drive. The sensible move is to eat at the pub before you head up, or book a table for when you come back down hungry.
Time it right, too. The Erica Hotel kitchen runs Wednesday to Sunday, so a Monday or Tuesday run means the kitchen is shut and you should eat and shop in Moe on the way through. On an open day, call ahead on (03) 5165 3252 or email bookings@ericahotel.com.au. You can also visit ericahotel.com.au for opening hours before you head off.
If you are making an early or late day of it, the pub has six budget rooms with private ensuites. They are twin rooms and they book out, so ring first rather than counting on a spare on the night.
