San Vicente to Second Aqueduct Pipeline California
The San Vicente to Second Aqueduct Pipeline Tunnel requires mining through
a variety of geologic formations including very weak cobble conglomerate
to very strong granitic rock.
Deere & Ault prepared a pre-bid evaluation for this 13 mile emergency water
supply tunnel in San Diego, California.
Our evaluation of the geotechnical conditions helped the contractor select
the appropriate tunneling methods and ground support.