Yea that culvert was in rough shape - the snow melt caused all the dirt around it to wash out, so it was moving around freely. It was near the top where the road forks and heads up to Argentine pass to the right, and there's a short road to the left that dead ends at a turnaround. The culvert was on the road to the left.
1976 FJ40 - green and mostly stock
1996 FZJ80 - not so stock