PLANS for a 10km underground jet-fuel pipeline between Dublin Port and the airport are back on, years after they were shelved.
The pipe would carry aviation fuel from the port under the city for use at the airport.
Engineers have submitted a pre-planning consultation application to An Bord Pleanala.
The Bord will have to decide if the ambitious project qualifies as strategic infrastructure, or if it can be dealt with by the local authorities.
If regular planning permission is required, the company -- Fingleton White & Co -- said it intended applying next year, with a projected construction phase of six months.
The company said it would remove heavy traffic from the roads between the port and the airport.
The project was first given the green light by Dublin City Council and Fingal County Council in 2001, but permission lapsed some years later.
A spokesman said the firm was now pressing ahead with the project, despite the recession.
He explained the removal of trucks from the road would justify the expenditure of using the pipe.
"The economics of this remain the same," he said.
A route has not been chosen yet. The pipeline, which would carry 1.2 billion litres of fuel per year, would be covered with a factory-applied polyethylene coating, with a protection system to prevent corrosion.
"From an environmental viewpoint, pipelines safely managed have minimal effect, whereas road transportation generates noise, air pollution, traffic congestion and leads to accidents," the company said.
"Fuel tankers constitute nearly 1.5pc of all HGV movements on the busy airport road and this is forecast to increase.
"The pipeline will eliminate noise nuisance, general deterioration in the quality of urban life, consumption of road space and traffic congestion, which occurs with these movements."
Fingleton White & Co's client, Independent Pipeline Co, is responsible for the pipe's design, building and operation.
A Dublin City Council spokesman said: "An Board Pleanala has yet to decide if this is a strategic infrastructure application."
"If it is decided that it is, An Board Pleanala will deal with it and Dublin City Council will submit a strategic infrastructure report.
"If it is decided that this is not a strategic infrastructure application, it will be dealt with as a planning application and will be dealt with in the normal manner."