You can get through there from the powerlines.
Parking might be an issue though.
I have fished it from the trestle to school and vise versa but always walked back via the road which you cant do now.It's really not that far, no Furthur then going to the secret spot.
I will most likely just write the south bank off and if I decide to fish that area just do it from the north
Edit: if it is low water ,335 you can cross from the north to the south just above the barrel if you really wanted too. Have done that as well