WHAT HAVE BEEN ACCOMPLISHED:

Wall types considered including secant wall with and without tie-backs, and soldier pile concrete lagging wall with tie-backs.  The earth at the toe of the slide was partially excavated to reduce overburden as recommended by the geotechnical engineer.

The maximum wall height is more than 11-ft and the length of tie-back is more than 30-ft.  During construction, JMEC performed field verification and structural observation to ensure that the prestressing and grouting operation of the tie-backs were conforming to project requirements, including proof load and lock-in forces.

Schedule:  Construction was completed in 2009