Today at 10.30am some supporters of "Save the Wakefield St bridge" will be presenting a boxload of submissions to the district council.
The bridge already carries significant weight and speed restrictions, however the latest move does not affect cars or motorbikes.
A council spokesperson said the new restrictions would be signposted on each side of the bridge.
The council will also be installing a 10m-long speed hump in Wakefield St - between the bridge and the Wanganui East Club - to help slow traffic.
"We will also carry out a detailed review of the bridge structure to see if the original assumptions are still accurate," the spokesperson said.
The review will include another traffic count to see how many vehicles travel over the bridge each day.