Motorists are being urged to avoid a slow-moving convoy in Barrow town centre on Monday.
The sections will be taken to the British Gas complex at Rampside
Over 100 tons of gas terminal steelwork will be moved through the streets to the British Gas complex at Rampside at 1900 GMT.
The load is the first of a series of massive sections of the new Rivers terminal that is been brought in to Barrow docks.
Burlington Resources' Rivers Gas terminal is due to be completed by the end of this year.
Weighing up to 160 tons, and nearly 100 feet long, each component was manufactured in north-east England.
Each section will be taken by road at less than walking pace from Barrow Island, up Abbey Road, and then down Hollow Lane to Friars Lane and the coast road to the construction site.
The first two loads - on Monday and Tuesday night - will both set off 1900 GMT and the vehicles will take 12 hours for the round trip.
Cumbria Police are enforcing parking restrictions on some of the route, and are warning motorists to take care around the slow moving convoy.