Pelican Boat Ramp was reopened to the public on Saturday following a $1.2-million upgrade funded by the state government.
Lake Macquarie City Council's asset manager, Helen Plummer, said the new boat ramp was a vast improvement on what was previously there.
"With its million-dollar makeover, the boat ramp is now a safer and more accessible infrastructure asset, which will benefit both the local residents and visitors," Ms Plummer said.
"In the coming weeks, a new smart LED sign will be installed to provide real-time data on temperature, current velocity, tide and number of boats launched, as well as the ability to display safety messages."
Mayor Kay Fraser officially opened the facility under threatening skies.
"It is evident from our consultation with the community how important this asset is to our local boaties and we appreciate the patience of users throughout construction," Cr Fraser said.
"This ramp allows the community to continue to use this popular facility while council continues to investigate options to address the problem of erosion in the area and plan for the future.
"Erosion in this part of the lake is a long-term problem and council already has work under way to look at how we can manage the issues associated with channel evolution."
In the coming weeks, a new smart LED sign will be installed to provide real-time data.- Helen Plummer
The boat ramp was closed in October 2015 due to the effects of tidal erosion and damage incurred in the super storm of April that year.
A number of factors, including a revised design and gaining the relevant approvals, initially affected the delivery of this project, a spokesperson for the council said.
The project was funded through the state government's Boating Now program, which aims to improve safety and accessibility for all boat users.