Soil Engineering construction

Lombard Street - Telegraph Hill Rock Slide, San Francisco

September 21st, 2012

In January of 2012 a few hundred tons of rock fell off the steep slopes of San Francisco’s Telegraph Hill, closing the road below and crushing a parked car.  Soil Engineering Construction removed a portion of the rock fall debris and rebuilt the rock fall impact fence at the toe of the slope.   

Our crews, working from climbing ropes, then removed vegetation and additional loose rock to prepare the slope for extensive geologic mapping by Cotton, Shires and Associates who will recommend further measures to stabilize the slope. 

This project is an example of how Soil Engineering Construction works closely with various geologists engineering firms to arrive at an effective solution to complex problems.

Construction Elements

  • Rock fall fence installation
  • Rock face scaling
  • Close coordination with Geotechnical Engineer
  • Complex permitting process


Geotechnical Engineer: Cotton, Shires & Assoc.

Design Engineer: Andersson Woodrow / Soil Engineering Construction

Contractor: Soil Engineering Construction - Randy Libby, Superintendent