Trucking Cargo via the Highlands Highway: A Practical Guide for Shippers
The Highlands Highway carries most of the freight that keeps PNG’s Highlands running. It’s also one of the most demanding freight routes in the region. Here’s how to plan road transport from Lae with realistic expectations.
In this guide
- The highway runs from Lae through Kainantu, Goroka, Kundiawa and Mount Hagen, then branches to Enga, Hela and the Southern Highlands.
- It serves the Highlands region, home to about 40% of PNG’s population, along with major mines and gas projects.
- Landslides, washouts, steep passes and security concerns all affect transit times.
- Use experienced operators, build in buffer time and make sure insurance covers the road leg.
The route
The Highlands Highway, also known as the Okuk Highway, starts at Lae and heads west up the Markham Valley past Nadzab. It climbs over the Kassam Pass to Kainantu, continues to Goroka, crosses the Daulo Pass and runs through Chuave and Kundiawa to Mount Hagen. From there, branches continue to Wabag and Porgera in Enga, and to Mendi and Tari in the Southern Highlands and Hela.
The trunk route from Lae to the Porgera area is around 700 kilometres. Including its branches, the wider Highlands Highway network runs to about 1,200 kilometres and connects with a further 1,800 kilometres of regional roads, serving some three million people. Mountain passes reach as high as 3,000 metres, with steep gradients along the way.
What moves on the highway
Almost everything the Highlands consumes comes up from Lae by road: food and groceries, fuel, building materials, vehicles, machinery, and equipment and supplies for mines and the PNG LNG project. Coming the other way, coffee and other agricultural produce travel down to Lae for export. Around 90% of PNG’s coffee exports are shipped through Lae.
That two-way flow is good news for shippers. Trucks heading back to Lae need loads, which helps keep the trucking market active and gives regular customers some room to negotiate.
Road conditions
Much of the highway is a two-lane road, and some sections narrow to a single lane after washouts. Landslides and potholes are a regular problem, particularly in heavy rain, and the road can be cut for hours or days at a time.
Significant investment is under way. The Sustainable Highlands Highway Investment Program, backed by the Asian Development Bank and other lenders, is rehabilitating more than 400 kilometres of the route, improving road safety, and upgrading 71 bridges on the roughly 320-kilometre stretch between Nadzab and Mount Hagen. Works can bring their own short-term delays, so check for roadworks before scheduling time-critical loads.
Security and communities
Security along some sections of the highway is a genuine concern, and breakdowns can leave drivers and cargo exposed. The highway also passes hundreds of villages and through the land of many landowner groups, and disputes or compensation claims can occasionally hold up traffic.
Experienced operators manage these risks with trained and closely monitored drivers, convoy movements, communication check-ins, high-security seals and clear procedures for incidents. Some also restrict night-time movements. These measures are a large part of what you’re paying for when you choose an established operator over the cheapest quote.
Planning a Highlands shipment
Good planning prevents most problems on this route:
- Choose the right operator. Look for an established Highlands fleet, its own security procedures, tracking and a clear incident process.
- Match the truck to the cargo. Containers move on skeletal trailers or flatbeds, general cargo on tautliners or tray trucks, and heavy equipment on low-loaders.
- Check heavy and oversized loads. Confirm axle limits, bridge capacities and any permits or escorts required before the cargo leaves Lae.
- Secure the load. Steep grades and rough surfaces punish poorly restrained cargo, so brace, strap and seal properly.
- Allow buffer time. Transit times vary with destination, weather and road conditions, so don’t plan site deliveries to the hour.
- Insure the road leg. Make sure marine cargo cover extends to the final destination, or arrange separate transit insurance.
Full container to site, or unpack in Lae?
Sending a sealed container straight to site keeps handling to a minimum and helps with security. The trade-off is container detention: the shipping line’s free time keeps running while the box travels up the highway, is unpacked and comes back down.
Unpacking in Lae and reloading onto trucks returns the container quickly and lets you combine cargo from several suppliers, but it adds handling and requires a secure warehouse. For regular Highlands deliveries, many importers use a mix of both, depending on the cargo.
Frequently asked questions
How far is it from Lae to Mount Hagen by road?
The route runs several hundred kilometres through the Markham Valley and over mountain passes. The full trunk route from Lae to the Porgera area is around 700 kilometres.
How long does trucking from Lae to the Highlands take?
It depends on the destination, the load and road conditions. In good conditions, many Highlands centres can be reached within a day or two, but weather, roadworks and convoy schedules can extend this. Ask operators for current transit times.
Is the Highlands Highway safe for cargo?
Security is a genuine concern on some sections. Using an established operator with monitored drivers, convoy procedures, secure seals and tracking significantly reduces the risk.
Can heavy machinery go up the Highlands Highway?
Yes, it regularly does, but heavy and oversized loads need low-loaders, route checks for bridge and axle limits, and any required permits or escorts.
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Sources
Philip Thomas
Philip is the lead author and editor at Phantom8. He writes practical guides to shipping freight into Papua New Guinea, with a focus on choosing the right port, clearing customs and planning the inland leg.
General information only. This guide is general in nature and isn’t legal, customs or logistics advice for your specific shipment. Port operations, road conditions, schedules and charges change, so confirm the details with your freight forwarder, transport operator or the relevant authority before you ship.