Because they are so dangerous, it is illegal to be on railway tracks and bridges, other than at proper crossings, and anyone doing this can be prosecuted. The maximum fine is $10,000.
The repair work to the pedestrian and cycle way on the bridge is due to be competed by the end of January 2013.
It involves replacing the timber decking, beams and struts as well as the steel supports.
The ramps at each end of the bridge and the hand rails are also being upgraded.
Once the work is finished the pathway will be safer and slightly wider.
The bridge is an important access route for edestrians and cyclists between Matapihi, the Bayfair/Arataki area and the city centre with up to 200 people using the pathway on the bridge every day.
Because Matapihi residents are the biggest users of the bridge pathway Tauranga City Council is providing a free mini bus service for Matapihi residents between Matapihi and Bayfair six days a week while the bridge is closed.
The Matapihi Rail Bridge is 88 years old. The pathway along the side of the bridge was added at the end of the 1950's to provide a safe way for people to walk over the bridge.
This was as a result of numerous deaths and injuries to people walking over the rail bridge on the railway tracks.
A visual inspection done in January 2012, followed by a structural investigation in March 2012, indicated that there was significant rotting and rusting to the wooden beams and steel supports under the pathway that needed to be repaired.