ICE president David Orr visited Liverpool last week to speak at the Institution's "State of the City" debate.
He was also there to discuss opportunities to provide an infrastructure legacy beyond Liverpool's current European Capital of Culture status.
The visit preceded the ICE's "State of the City" report released on Friday.
This highlights key areas of Liverpool's infrastructure that must be addressed to accommodate future sustainable growth.
ICE North West Regional Chairman, Chris Davies, said: "Our aim is to showcase the progress that has been made in raising the
status of our city to international level – but more importantly it highlights key areas in which this progress must be sustained for
The report outlines how renewed private sector confidence has already led to large-scale investment in Liverpool's city centre. A total of £3bn is being spent on development projects and infrastructure.
However it also points out the need for continued investment beyond 2008, singling out the city's canals, rail, and road networks as potential trouble spots.
It explains that despite the £73M investment in Liverpool's City Centre Movement Strategy, heavy congestion could still threaten the city's continuing regeneration.
It suggests the introduction of road-user charging as a possible measure to help avoid future chaos.
The document also stresses the need to ensure the city's transport capacity meets the growing demand of the port developments at Pier Head, where it is hoped a new canal link will enable more freight transport by water and rail.
Continued investment in the expansion of the Merseyrail commuter train network and the provision of extra rolling stock is described as vital to meet the city's moves towards carbon neutrality.
The report warns that without this focus there could still be 'unacceptable levels of road congestion in the future, with negative impacts on the city region's continuing regeneration'.
Pier Head: Focus for a huge amount of investment