The A9 drops from 150m (492ft) to 20m (65ft) as it enters a valley at the Berriedale Braes.
Transport Scotland will run an exhibition at Berriedale Parish Church in Berriedale on 26 November outlining the proposed work.
The plans will also be made available on the agency's website.
The draft road orders for the work involved will be published on Friday.
Transport Minister Keith Brown said: "The hairpin bend and steep hill at Berriedale Braes has presented drivers with a very challenging road to negotiate - and is why we are working hard towards delivering improvements right along the A9, including at the Braes."
In August, the Scottish Chambers of Commerce (SCC) called for work to tackle the bend to be accelerated.
The Berriedale Braes were the scene of a lorry fire on 5 August which blocked the road for five hours. A 77-mile (124 km) detour was unsuitable for HGVs.
The SCC said accidents were a "frequent occurrence" and adversely affected businesses in the far north and Orkney.
Transport Scotland said a solution to the hairpin was being progressed.

Drivers who get too close to cyclists could end up in court on a charge of dangerous or careless driving.
Those caught too near will be advised that bikes should be given as much room as cars. Evidence will also be captured via a bike-mounted camera.
The scheme could be repeated across the country.
Police officers believe many people are put off cycling on Edinburgh's streets because of the fear of other vehicles coming too close when they overtake.
PC Dominic Doyle, of Police Scotland, said: "A lot of drivers see a person on a bicycle riding on the road in a cycle lane and don't consider that passing them closely puts all road users in danger.
"It could constitute careless or even dangerous driving and you would fail your driving test for that.
"Those drivers that we stop during this operation will be shown how closely they passed the unmarked officer by standing on our specially-designed mat.
"You should allow at least as much room as you would when overtaking a car when passing a person on a bicycle, giving consideration to the maximum speed limit and time and distance available to you."
A total of 398 cyclists have been injured in collisions in the capital over the past two years, including 62 seriously. One has died.
Keith Irving, Cycling Scotland chief executive, said: "Operation Close Pass is a welcome new initiative by Police Scotland to improve road safety.
"Education and enforcement are essential to making safer roads for everyone, whether we are cycling, driving or walking.
"This initiative is one of the many we need to take to tackle the increase in serious injuries amongst people cycling."
Ch Supt Andy Edmonston, head of road policing for Police Scotland, said: "We are constantly working to make Scotland's roads safer for everyone, and I am very pleased to see this innovative approach being piloted in Edinburgh where a large number of people cycle to commute and for pleasure."

Claire Throssell's ex-husband Darren Sykes lured Paul, nine and Jack, 12, to the property in Penistone on 22 October before setting fire to the building.
A charity appeal in aid of Ms Throssell has been set up with the aim of raising enough money to help her restore the property and sell it.
Campaigners have so far raised around Â£8,000 of a Â£50,000 target.
Ms Throssell said: "It's just amazing, the people are just awesome and I just can't believe that so many people are carrying that love for my boys.
"It's keeping their memory alive. They were the best part of me, they were my life and it's lovely that people love them for who they were."
Transport Scotland will present a draft outline of the proposed improvements to a challenging hairpin bend on the A9 in Caithness next week.
[NEXT_CONCEPT]
An unmarked police cyclist is taking to Edinburgh's streets to highlight the space cars should give bikes on the road.
[NEXT_CONCEPT]
Rebuilding work has begun at a house in South Yorkshire where a man killed himself and his two sons in a fire.