Korokoro Dam Walk: Oakleigh Loop or Cornish Street Route

The Korokoro Dam walk reaches a historic water-supply structure in Belmont Regional Park near Lower Hutt. The Oakleigh Street Korokoro Dam Loop Track is 2.7 km and one hour in Greater Wellington's walking table. Choose that forest circuit or the longer Cornish Street approach before navigating to the park: they do not start at the same entrance.

Compare the two approaches

Route	Start	Council distance and time	Grade
Korokoro Dam Loop Track	Oakleigh Street	2.7 km / 1 hr loop	Intermediate
Korokoro Stream Track	Cornish Street	8 km / 3 hr return	Intermediate

The current council walking table puts the dam loop under Oakleigh Street and the stream track under Cornish Street. The Cornish Street approach is the separate Korokoro Stream Track: 8 km and three hours return. Do not schedule a one-hour visit and then arrive at the longer route's entrance.

Both approaches are graded intermediate by Greater Wellington. The word "loop" describes the Oakleigh itinerary, not every journey to the dam. Adding a different entrance or a hilltop extension changes the return arrangement and the effort.

Oakleigh Street for the shorter outing

Council describes the loop descending through native forest to the dam. Read the map at the entrance, identify the signed loop and keep the return to Oakleigh Street explicit. Starting above the valley means the downhill beginning should not be mistaken for the effort of the whole outing.

For a group with limited time, stay with that named circuit instead of adding another park destination. If you choose to turn back early, retrace the known permitted path rather than selecting an unfamiliar branch solely because it appears to head uphill. Carry a saved copy of the park brochure map so junction choices do not depend on reception.

Council lists toilets and picnic tables at Oakleigh Street. That is a facility at an entrance, not confirmation of a toilet, drinking-water tap or rubbish bin beside the dam. Bring your drinking water and take rubbish away.

Cornish Street for the valley walk

The longer route follows the old water pipeline through the Korokoro valley to the dam. Treat the published three hours as return walking time, with rest stops additional. Returning to Cornish Street keeps a single-vehicle plan straightforward; finishing at Oakleigh Street instead needs a separate transport arrangement.

The dam is not a sensible place to decide spontaneously on an open-tops traverse. Other Belmont routes have different grades, lengths and farmland constraints. Keep this walk separate from the park's longer traverses unless everyone has planned and equipped for those routes.

The historic dam

Greater Wellington's water-supply history leaflet dates Korokoro Dam's completion to 1903 and the end of its water-supply use to 1962. The surviving structure is a reason to slow down and look, not an invitation to climb the dam face or enter water below it.

This guide does not establish swimming suitability or access onto the structure. Observe from permitted walking areas and keep children close near water. Korokoro Campsite and the Korokoro Falls side trip near Lake Waikaremoana are unrelated destinations; check the region as well as the name when saving a map.

Dogs, notices and weather

Dogs must be on a lead in the Korokoro valley; farmland has separate dog prohibitions. Carry waste bags and read pest-control notices. A permitted valley walk does not establish dog access on a hilltop extension.

The park page carries a Transmission Gully works notice for specified motorway-side tracks. Read its actual boundaries rather than interpreting it as either a dam closure or a park-wide all-clear. The brochure also advises avoiding streams during heavy rain. Choose another day if flooding, barriers or damaged footing make the approach unsuitable.

Before you go

• Choose Oakleigh Street or Cornish Street and tell someone your plan.
• Check Greater Wellington's current notices and entrance map.
• Carry footwear with grip, water, food and weather protection.
• Keep a lead on dogs and stay out of farmland with them.
• Allow time to return to the entrance where your transport is waiting.
• Plan overnight stays separately using Wellington camping guidance.