Presidio Coastal Trail (Completed Spring 2012)

H-beam Wall Progression

We have continued with building the H-beam wall for the Presidio Coastal Trail and Golden Gate Overlook. The following pictures show our progression over the last week.

The holes for the I-beams were drilled.

 

These piles are the soil that was drilled out of the I-beam holes.

 

We then lowered each beam one by one with a crane.

 

The beams were then cemented in place.

 

This is the view from the Pacific Overlook (our next project), next to the H-beam wall installation.