How do you get past the bridge on nabooti island?

There is a "bridge" of stones at the scorpion pit in the tomb at Giza.

(Line up the wall lines so they are all flat ---- )

If you mean, "help the woman across the falls" (not actually a bridge), the process is:

1) take the chicken left

2) take the fox left, bring back the chicken

3) take the feed left

4) take the chicken left