These beautiful people at left told me that there will be no more changes to the pedestrian access between now and Saturday. They also wish us all good luck.
So, you MUST be on the left side of 1st Ave as you approach 125th Street. Do not attempt to get directly on the bridge. It is like a little highway, complete with a high speed entrance from the Harlem River Drive
Below is the view looking North on 1st ave and 125th Street. (See the new bridge on the right) Go left and to the left of the barricades....
Turn left as the road turns left
You will see this staircase. Go up.
Up a few more stairs....
Follow more signs..
You are on the new bridge. It gets narrow just past that porta pottie. (Is might be unlocked and usable on Oct 30th, it was nice and clean on Oct 27th)
Follow more signs.
Go down stairs.... At the road on the bottom you make a right and go under the bridge.
Under the Bridge is not paved so well
After going under the bridge turn left
After that cross the street and get to the gas station
Turn left and you are back on the Marathon Route
for the rest of the route you can follow these signs.