Transport and Main Roads Minister Mark Bailey encouraged locals and visitors to register for the historic event before the road officially opens traffic.
“This is an opportunity to get up close to this mammoth project that will transform the region,” Mr Bailey said.
“Thousands of locals have worked hard to bring this project to life, and this is about celebrating what they’ve achieved.”
People will have the chance to walk the road, between the Mort Street Interchange and the western end of the Viaduct, with the Community Open Day running from 11am to 5pm.
Visitors will be able to walk the 2km stretch to the viaduct enjoying a variety of community food and information stalls, as well as a selection of vintage cars from local clubs on display.
From there, visitors can also choose to experience the 800m viaduct, taking in the incredible outlook over the Lockyer Valley.
There is limited space at this location so for public safety the only access to the event will be by TransLink buses, through park ‘n’ ride facilities, which will be run from two locations in Toowoomba.
Pre-registration for park ‘n’ ride is required through Eventbrite at https://www.eventbrite.com.au/e/toowoomba-second-range-crossing-community-open-day-tickets-68219180405
and visitors can select from either a Central or Western pick up point.
The central pick-up point is located at the Neil Street Bus Exchange giving visitors access to the vast array of council car parks throughout the central business district.
The western pick-up point will be located at Charlton Speedway which offers visitors lots of easy parking and a quick bus route to the event site.
To help with organising a successful day, pre-registration will be required.
Attendees are encouraged to wear comfortable shoes and hats, to bring drink bottles, apply sunscreen.
To find out details of changes to traffic conditions and road closures over the weekend of activities, visit www.qldtraffic.qld.gov.au